CN105027352B - Antenna and terminal - Google Patents

Antenna and terminal Download PDF

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Publication number
CN105027352B
CN105027352B CN201380003611.5A CN201380003611A CN105027352B CN 105027352 B CN105027352 B CN 105027352B CN 201380003611 A CN201380003611 A CN 201380003611A CN 105027352 B CN105027352 B CN 105027352B
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CN
China
Prior art keywords
antenna
minor matters
pcb
feed
matters
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Active
Application number
CN201380003611.5A
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Chinese (zh)
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CN105027352A (en
Inventor
王汉阳
徐慧梁
陈丽娜
应李俊
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Huawei Device Co Ltd
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Huawei Device Co Ltd
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Publication of CN105027352A publication Critical patent/CN105027352A/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/24—Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction
    • H01Q21/26—Turnstile or like antennas comprising arrangements of three or more elongated elements disposed radially and symmetrically in a horizontal plane about a common centre
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
    • H01Q9/285—Planar dipole

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  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Support Of Aerials (AREA)

Abstract

The embodiment of the present invention provides a kind of antenna and terminal.The antenna includes：First antenna minor matters, the second antenna minor matters, third antenna minor matters, feed minor matters and ground connection minor matters；Wherein, first antenna minor matters constitute the first PIFA antennas for producing the first resonant frequency with feed minor matters, ground connection minor matters；Second antenna minor matters constitute the 2nd PIFA antennas for producing the second resonant frequency with feed minor matters, ground connection minor matters；Third antenna minor matters, feed minor matters and ground connection minor matters constitute the loop aerial for producing the 3rd resonant frequency, wherein, the electric size of loop aerial is the 1/2 of the 3rd resonant frequency corresponding wavelength.The bandwidth of operation of antenna provided in an embodiment of the present invention can be extended to broader frequency band, and then go in wide band electronic equipment, antenna it is applied widely.

Description

Antenna and terminal
Technical field
The present invention relates to communication technical field, more particularly to a kind of antenna and terminal.
Background technology
With continuing to develop for the communication technology, user requires more and more higher, terminal antenna to the bandwidth of operation of mobile terminal As a kind of miniature antenna, the more and more thinner of apparent size design is less and less.Therefore, to compact size and the frequency that works The demand of the antenna of the wide multiband resonance of section becomes increasing.
In the prior art, for resonance is in the antenna that multiband works, using resonance three band operations antenna as Example, traditional Antenna Design is the PIFA antennas and parasitic one three frequency resonance day of minor matters composition by a double-frequency resonance Line.Wherein, the PIFA antennas of double-frequency resonance can be operated in 900MHZ and 1800MHZ, and parasitic minor matters can expand the band of high frequency Width, such as antenna need to be operated in 1900MHZ or 2100MHZ, can increase parasitism by the feeder line of double-frequency resonance PIFA antennas Minor matters, so as to so that the PIFA antennas high frequency bandwidth of double-frequency resonance is extended to 1900MHZ or 2100MHZ from 1800MHZ.
With the development of technology, antenna needs to be operated in increasingly wider frequency band, and traditional antenna is difficult to meet following hair The demand of exhibition, therefore, traditional antenna can not be suitable for being operated in wide band terminal device.
The content of the invention
The embodiment of the present invention provides a kind of antenna and terminal, goes in wide band terminal device, increases day The scope of application of line.
First aspect of the embodiment of the present invention provides a kind of antenna, including：First antenna minor matters, the second antenna minor matters, the 3rd Antenna minor matters, feed minor matters and ground connection minor matters；Wherein, it is described feed minor matters first end respectively with the first antenna minor matters First end, the first end of the second antenna minor matters, the electrical connection of the first end of the third antenna minor matters, the feed minor matters Second end is electrically connected with the antenna feed end on printing board PCB, the first end and the third antenna of the ground connection minor matters The second end electrical connection of minor matters, the second end of the ground connection minor matters is electrically connected with the earth terminal on the PCB；
The first antenna minor matters constitute the first PIFA antennas, described first with the feed minor matters, the ground connection minor matters PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters are constituted with the feed minor matters, the ground connection minor matters 2nd PIFA antennas, the 2nd PIFA antennas are used to produce the second resonant frequency；The third antenna minor matters, feed branch Section and the ground connection minor matters constitute loop aerial, and the loop aerial is used to produce the 3rd resonant frequency, wherein, the annular day The electric size of line is the 1/2 of the 3rd resonant frequency corresponding wavelength.
It is the first antenna minor matters, described with reference in a first aspect, in the first possible embodiment of first aspect The vertical height between plane and the PCB where second antenna minor matters and the third antenna minor matters is between 3mm-5mm.
With reference to the first possible embodiment of first aspect or first aspect, in second of possible reality of first aspect Apply in mode, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the antenna also includes antenna holder, institute PCB and the antenna holder is stated to be located in the cavity, wherein, the antenna holder be arranged on the PCB towards after described The one side of lid, the first antenna minor matters, the second antenna minor matters and the third antenna minor matters are arranged on the antenna branch The one side towards the bonnet of frame.
With reference to the first possible embodiment of first aspect or first aspect, the third possible reality in first aspect Apply in mode, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, the PCB is located in the cavity, institute State first antenna minor matters, the second antenna minor matters and the third antenna minor matters be arranged on the bonnet towards the PCB One side.
Any one of the third possible embodiment with reference to first aspect to first aspect, the of first aspect In four kinds of possible embodiments, the first antenna minor matters, the second antenna minor matters and the third antenna minor matters areType structure, the first ends of the third antenna minor matters respectively with the first end of the first antenna minor matters and described second The first end electrical connection of antenna minor matters.
With reference to the 4th kind of possible embodiment of first aspect, in the 5th kind of possible embodiment of first aspect In, the second antenna minor matters are located at the first edge side of the PCB, and the third antenna minor matters are located at the second of the PCB Edge side.
Any one of the third possible embodiment with reference to first aspect to first aspect, the of first aspect In six kinds of possible embodiments, the first antenna minor matters, the second antenna minor matters and the third antenna minor matters areType structure, the first end of the first end of the third antenna minor matters and the first antenna minor matters and described second day The first end of line minor matters is flushed.
With reference to the 6th kind of possible embodiment of first aspect, in the 7th kind of possible embodiment of first aspect In, the antenna is located at any edge side of the PCB.
A kind of antenna provided in an embodiment of the present invention, by the way that third antenna minor matters, feed minor matters and ground connection minor matters are constituted The electric size length of loop aerial be set to the 1/2 of the 3rd resonant frequency corresponding wavelength so that the loop aerial produces the 3rd Resonant frequency, so that the bandwidth of operation of antenna is extended into broader frequency band, and then goes for wide band terminal device In, increase the scope of application of antenna.
Second aspect of the present invention provides a kind of antenna, including：First antenna minor matters, the second antenna minor matters, feed minor matters and It is grounded minor matters；Wherein, the first end first end respectively with the first antenna minor matters of the feed minor matters, second antenna The first end electrical connection of minor matters, the second end of the feed minor matters is electrically connected with the antenna feed end on printing board PCB, institute State ground connection minor matters first end electrically connected with the second end of the second antenna minor matters, it is described be grounded minor matters the second end with it is described Earth terminal electrical connection on PCB；
The first antenna minor matters constitute the first PIFA antennas, described first with the feed minor matters, the ground connection minor matters PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters are constituted with the feed minor matters, the ground connection minor matters Loop aerial, the loop aerial is used to produce the second resonant frequency；Wherein, the electric size of the loop aerial is described second The 1/2 of resonant frequency corresponding wavelength.
With reference to second aspect, in the first possible embodiment of second aspect, the first antenna minor matters and institute The vertical height between the plane and the PCB where the second antenna minor matters is stated between 3mm-5mm.
With reference to the first possible embodiment of second aspect or second aspect, second in second aspect is possible In embodiment, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, and the antenna also includes antenna holder, The PCB and the antenna holder are located in the cavity, the antenna holder be arranged on the PCB towards the bonnet Simultaneously, the first antenna minor matters and the second antenna minor matters are arranged on the one side towards the bonnet of the antenna holder.
With reference to the first possible embodiment of second aspect or second aspect, the third in second aspect is possible In embodiment, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, and the PCB is located in the cavity, The first antenna minor matters and the second antenna minor matters are arranged on the one side towards the PCB of the bonnet.
With reference to the third possible embodiment of second possible embodiment or second aspect of second aspect, In 4th kind of possible embodiment of second aspect, the first antenna minor matters and the second antenna minor matters areType The first end of structure, the first end of the first antenna minor matters and the second antenna minor matters is flushed.
A kind of antenna provided in an embodiment of the present invention, by the way that the second antenna minor matters, feed minor matters and ground connection minor matters are constituted The electric size length of loop aerial be set to the 1/2 of the second resonant frequency corresponding wavelength so that the loop aerial produces second Resonant frequency, so that the bandwidth of operation of antenna is extended into broader frequency band, and then goes for wide band terminal device In, increase the scope of application of antenna.
Third aspect present invention provides a kind of terminal, including：RF processing unit, baseband processing unit and antenna；Wherein, The antenna includes first antenna minor matters, the second antenna minor matters, third antenna minor matters, feed minor matters and ground connection minor matters；Wherein, institute State the first end first end respectively with the first antenna minor matters, the first end of the second antenna minor matters, institute of feed minor matters The first end electrical connection of third antenna minor matters is stated, the second end of the feed minor matters is electrically connected with the antenna feed end on the PCB Connect, the first end of the ground connection minor matters is electrically connected with the second end of the third antenna minor matters, the second end of the ground connection minor matters Electrically connected with the earth terminal on the PCB；The first antenna minor matters constitute first with the feed minor matters, the ground connection minor matters PIFA antennas, the first PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters with it is described feed minor matters, The ground connection minor matters constitute the 2nd PIFA antennas, and the 2nd PIFA antennas are used to produce the second resonant frequency；Described 3rd day Line minor matters, the feed minor matters and the ground connection minor matters constitute loop aerial, and the loop aerial is used to produce the 3rd resonance frequency Rate, wherein, the electric size of the loop aerial is the 1/2 of the 3rd resonant frequency corresponding wavelength；
The antenna, for giving the RF processing unit by the transmission of wireless signals received, or by radio frequency processing The transmission signal of unit is converted to electromagnetic wave, sends；The RF processing unit, for the nothing received to the antenna Line signal carries out frequency-selecting, amplification, down-converted, and converts thereof into intermediate-freuqncy signal or baseband signal is sent at the base band Unit is managed, or, baseband signal or intermediate-freuqncy signal for the baseband processing unit to be sent are led to by up-conversion, amplification The antenna is crossed to send；The baseband processing unit, is carried out to the intermediate-freuqncy signal received or the baseband signal Processing.
It is the first antenna minor matters, described in the first possible embodiment of the third aspect with reference to the third aspect The vertical height between plane and the PCB where second antenna minor matters and the third antenna minor matters is between 3mm-5mm.
With reference to the first possible embodiment of the third aspect or the third aspect, second in the third aspect is possible In embodiment, the antenna is located in the cavity formed by the protecgulum and bonnet of the terminal, and the antenna also includes antenna Support, the PCB and the antenna holder be located at the cavity in, wherein, the antenna holder be arranged on the PCB towards The one side of the bonnet, the first antenna minor matters, the second antenna minor matters and the third antenna minor matters are arranged on described The one side towards the bonnet of antenna holder.
With reference to the first possible embodiment of the third aspect or the third aspect, the third in the third aspect is possible In embodiment, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, and the PCB is located in the cavity, The first antenna minor matters, the second antenna minor matters and the third antenna minor matters be arranged on the bonnet towards described PCB one side.
Any one of the third possible embodiment with reference to the third aspect to the third aspect, the of the third aspect In four kinds of possible embodiments, the first antenna minor matters, the second antenna minor matters and the third antenna minor matters areType structure, the first ends of the third antenna minor matters respectively with the first end of the first antenna minor matters and described second The first end electrical connection of antenna minor matters.
With reference to the 4th kind of possible embodiment of the third aspect, in the 5th kind of possible embodiment of the third aspect In, the second antenna minor matters are located at the first edge side of the PCB, and the third antenna minor matters are located at the second of the PCB Edge side.
Any one of the third possible embodiment with reference to the third aspect to the third aspect, the of the third aspect In six kinds of possible embodiments, the first antenna minor matters, the second antenna minor matters and the third antenna minor matters areType structure, the first end of the first end of the third antenna minor matters and the first antenna minor matters and described second day The first end of line minor matters is flushed.
With reference to the 6th kind of possible embodiment of the third aspect, in the 7th kind of possible embodiment of the third aspect In, the antenna is located at any edge side of the PCB.
A kind of terminal provided in an embodiment of the present invention, by the way that third antenna minor matters, feed minor matters and ground connection minor matters are constituted The electric size length of loop aerial be set to the 1/2 of the 3rd resonant frequency corresponding wavelength so that the loop aerial produces the 3rd Resonant frequency, so that the bandwidth of operation of antenna is extended into broader frequency band, and then goes for wide band terminal device In, increase the scope of application of antenna.
Fourth aspect present invention provides a kind of terminal, including：RF processing unit, baseband processing unit and antenna；
Wherein, the antenna includes：First antenna minor matters, the second antenna minor matters, feed minor matters and ground connection minor matters, the feedback First end, the first end of the second antenna minor matters of the first end of electric minor matters respectively with the first antenna minor matters are electrically connected, Second end of the feed minor matters is electrically connected with the antenna feed end on printing board PCB, the first end of the ground connection minor matters Electrically connected with the second end of the second antenna minor matters, the second end of the ground connection minor matters is electrically connected with the earth terminal on the PCB Connect；The first antenna minor matters constitute the first PIFA antennas, the described first PIFA days with the feed minor matters, the ground connection minor matters Line is used to produce the first resonant frequency；The second antenna minor matters constitute annular day with the feed minor matters, the ground connection minor matters Line, the loop aerial is used to produce the second resonant frequency；Wherein, the electric size of the loop aerial is second resonance frequency The 1/2 of rate corresponding wavelength；
The antenna, for giving the RF processing unit by the transmission of wireless signals received, or by radio frequency processing The transmission signal of unit is converted to electromagnetic wave, sends；The RF processing unit, for the nothing received to the antenna Line signal carries out frequency-selecting, amplification, down-converted, and converts thereof into intermediate-freuqncy signal or baseband signal is sent at the base band Unit is managed, or, baseband signal or intermediate-freuqncy signal for the baseband processing unit to be sent are led to by up-conversion, amplification The antenna is crossed to send；The baseband processing unit, is carried out to the intermediate-freuqncy signal received or the baseband signal Processing.
With reference to fourth aspect, in the first possible embodiment of fourth aspect, the first antenna minor matters and institute The vertical height between the plane and the PCB where the second antenna minor matters is stated between 3mm-5mm.
With reference to the first possible embodiment of fourth aspect or fourth aspect, second in fourth aspect is possible In embodiment, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, and the antenna also includes antenna holder, The PCB and the antenna holder are located in the cavity, the antenna holder be arranged on the PCB towards the bonnet Simultaneously, the first antenna minor matters and the second antenna minor matters are arranged on the one side towards the bonnet of the antenna holder.
With reference to the first possible embodiment of fourth aspect or fourth aspect, the third in fourth aspect is possible In embodiment, the antenna is located in the cavity formed by the protecgulum and bonnet of terminal, and the PCB is located in the cavity, The first antenna minor matters and the second antenna minor matters are arranged on the one side towards the PCB of the bonnet.
With reference to the third possible embodiment of second possible embodiment or fourth aspect of fourth aspect, In 4th kind of possible embodiment of fourth aspect, the first antenna minor matters and the second antenna minor matters areType The first end of structure, the first end of the first antenna minor matters and the second antenna minor matters is flushed.
A kind of terminal provided in an embodiment of the present invention, by the way that the second antenna minor matters, feed minor matters and ground connection minor matters are constituted The electric size length of loop aerial be set to the 1/2 of the second resonant frequency corresponding wavelength so that the loop aerial produces second Resonant frequency, so that the bandwidth of operation of antenna is extended into broader frequency band, and then goes for wide band terminal device In, increase the scope of application of antenna.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are this hairs Some bright embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can be with root Other accompanying drawings are obtained according to these accompanying drawings.
The structural representation for the antenna embodiment one that Fig. 1 provides for the present invention；
The structural representation for the antenna embodiment two that Fig. 2 provides for the present invention；
The return loss analogous diagram for the antenna embodiment two that Fig. 3 provides for the present invention；
The efficiency analogous diagram for the antenna embodiment two that Fig. 4 provides for the present invention；
The structural representation for the antenna embodiment three that Fig. 5 provides for the present invention；
The return loss analogous diagram for the antenna embodiment three that Fig. 6 provides for the present invention；
The efficiency analogous diagram for the antenna embodiment three that Fig. 7 provides for the present invention；
The structural representation for the antenna embodiment four that Fig. 8 provides for the present invention；
The structural representation for the antenna embodiment five that Fig. 9 provides for the present invention；
The return loss analogous diagram for the antenna embodiment five that Figure 10 provides for the present invention；
The structural representation for the terminal embodiment one that Figure 11 provides for the present invention；
The structural representation for the terminal embodiment two that Figure 12 provides for the present invention.
Description of reference numerals
11：First antenna minor matters； 12：Second antenna minor matters； 13：Third antenna minor matters；
14：Feed minor matters； 15：It is grounded minor matters； 16：PCB；
17：Antenna feed end； 18：Earth terminal； 19：Antenna holder；
20：PCB first edge side； 21：PCB second edge side；
111：The first end of first antenna minor matters； 112：Second end of first antenna minor matters；
121：The first end of second antenna minor matters； 122：Second end of the second antenna minor matters；
131：The first end of third antenna minor matters； 132：Second end of third antenna minor matters；
141：Feed the first end of minor matters； 142：Feed the second end of minor matters；
151：It is grounded the first end of minor matters； 152：It is grounded the second end of minor matters；
41：RF processing unit； 42：Baseband processing unit； 43：Antenna；
31：First antenna minor matters； 32：Second antenna minor matters；
33：Feed minor matters； 34：It is grounded minor matters； 35：PCB；
36：Antenna feed end； 37：Earth terminal； 38：Antenna holder；
39：PCB first edge side； 40：PCB second edge side；
311：The first end of first antenna minor matters； 312：Second end of first antenna minor matters；
321：The first end of second antenna minor matters； 322：Second end of the second antenna minor matters；
331：Feed the first end of minor matters； 332：Feed the second end of minor matters；
341：It is grounded the first end of minor matters； 342：It is grounded the second end of minor matters；
44：RF processing unit； 45：Baseband processing unit； 46：Antenna.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Multiband resonant antenna can be worked by certain radiation mechanism in several different frequency ranges.And correspondence is not Same working frequency range, due to the difference of working frequency, the electric size of respective antenna is different.Make antenna in each work frequency Section interior energy works well, it is necessary to the resonant frequency of operation point of designing antenna, that is, determines the optimal electricity of the antenna of each frequency range Size.If Antenna Operation is on different resonance points, antenna can be made in each working frequency range, with preferable performance.
Usually, antenna has several working frequency range just to have several resonant frequencies, so as to realize that antenna multiband is preferable Working condition.The embodiments of the invention provide a kind of antenna, such as tri-band antenna, it can have three resonant frequencies, can It is applied in three different band operation scenes, for example：WLAN (Wireless Local Area Networks, with Lower abbreviation WLAN) scene of antenna, compound WLAN and global positioning system (Global Positioning System, it is simple below Claim GPS) antenna scene, Long Term Evolution (Long Term Evolution, hereinafter referred to as LTE) diversity antenna and LTE primary antennas Scene etc..
The structural representation for the antenna embodiment one that Fig. 1 provides for the present invention.It should be noted that Fig. 1 is able to The annexation of each antenna minor matters or corresponding position in antenna in the clearer explanation embodiment of the present invention, and simply this Antenna in a kind of signal of antenna structure in inventive embodiments, the embodiment of the present invention can also have other structures, not It is limited to the structure shown in Fig. 1.It can be made referrals in embodiment of the other structures of antenna below in the embodiment of the present invention.
As shown in figure 1, the antenna includes：First antenna minor matters 11, the second antenna minor matters 12, third antenna minor matters 13, feedback Electric minor matters 14 and ground connection minor matters 15；Wherein, the first end of the first end 141 of the feed minor matters 14 respectively with first antenna minor matters 11 111st, the first end 121 of the second antenna minor matters 12, the first end 131 of third antenna minor matters 13 are electrically connected, and the of feed minor matters 14 Two ends 142 are electrically connected with the antenna feed end 17 on PCB16；It is grounded the first end 151 and third antenna minor matters 13 of minor matters 15 Second end 132 is electrically connected, and the second end 152 of ground connection minor matters 15 is electrically connected with the earth terminal 18 on PCB16；The first antenna branch Section 11 constitutes the first PIFA antennas with feed minor matters 14, ground connection minor matters 15, and the first PIFA antennas are used to produce the first resonance frequency Rate；The second antenna minor matters 12 constitute the 2nd PIFA antennas with feed minor matters 14, ground connection minor matters 15, and the 2nd PIFA antennas are used In producing the second resonant frequency；The third antenna minor matters 13, feed minor matters 14 and ground connection minor matters 15 constitute loop aerial, the ring Shape antenna is used to produce the 3rd resonant frequency, wherein, the electric size of the loop aerial is the 1/ of the 3rd resonant frequency corresponding wavelength 2。
Wherein, the first resonant frequency can be 2.4GHz-2.5GHz, and the centre frequency of the second resonant frequency can be 5.2GHz, the centre frequency of the 3rd resonant frequency can be 5.8GHz.
Specifically, as shown in figure 1, first antenna minor matters 11, feed minor matters 14 and ground connection minor matters 15 constitute the first PIFA days Line；Wherein, the first end 141 of feed minor matters 14 is electrically connected with the first end 111 of first antenna minor matters 11, feeds the of minor matters 14 Two ends 142 are electrically connected with the antenna feed end 17 on PCB16.By setting the electric size length of the first PIFA antennas to cause first PIFA antennas produce the first resonant frequency.Wherein, first resonant frequency can be 2.4GHz.The electric chi of first PIFA antennas Modest ability degree can be the 1/4 of the corresponding wavelength of the first resonant frequency, the electric size length of the first PIFA antennas can be from PCB16 antenna feed end 17 arrives the electrical length at the second end 112 of first antenna minor matters 11 via feed minor matters 14.Here The 1/4 of the corresponding wavelength of one resonant frequency can be the electrical length calculated according to resonant frequency 2.4GHz.
Second antenna minor matters 12 constitute the 2nd PIFA antennas with feed minor matters 14, ground connection minor matters 15；Wherein, the feed minor matters 14 first end 141 is electrically connected with the first end 121 of the second antenna minor matters 12, on the second end 142 and PCB16 of feed minor matters 14 Antenna feed end 17 electrically connect.By setting the electric size length of the 2nd PIFA antennas that the 2nd PIFA antennas can be caused to produce Second resonant frequency, wherein, second resonant frequency can be 5.2GHz, and the electric size length of the 2nd PIFA antennas can be From electrical length of the antenna feed end 17 via the second end 122 of the feed antenna of minor matters 14 to the second minor matters 12.Here second The electric size length of PIFA antennas is the 1/4 of the corresponding wavelength of the second resonant frequency, the corresponding ripple of the second resonant frequency here Long 1/4 can be the electrical length calculated according to resonant frequency 5.2GHz.
It should be noted that the position of the antenna minor matters 12 of first antenna minor matters 11 and second is one simple in Fig. 1 Signal, first antenna minor matters 11 can be parallel with the second antenna minor matters 12, can also be with the not parallel (Fig. 1 of the second antenna minor matters 12 Show a case that the two is not parallel), as long as ensuring the of the antenna minor matters 12 of first end 111 and second of first antenna minor matters 11 One end 121 is electrically connected with feeding the first end 141 of minor matters 14, the second end 112 of first antenna minor matters 11 and the second antenna minor matters There is suitable gap between 12 the second end 122.
Third antenna minor matters 13 constitute loop aerial with feed minor matters 14, ground connection minor matters 15, by by the loop aerial Electric size is set to the 1/2 of the 3rd resonant frequency corresponding wavelength so that the loop aerial constituted produces the 3rd resonant frequency, should 3rd resonant frequency can be 5.8GHz；Here the electric size of loop aerial actually refers to antenna feed end 17 via feedback Electric minor matters 14, third antenna minor matters 13, ground connection minor matters 15 reach the electrical length that earth terminal 18 is constituted, that is, are exactly the electric chi of loop aerial It is very little.The design of loop aerial so that PCB16 and antenna only have 18 two contact points of antenna feed end 17 and earth terminal, and without Increase extra parasitic minor matters to produce the 3rd resonant frequency, it is possible to the bandwidth of operation of antenna is expanded, it is also possible that antenna Volume reduce.Here the 1/2 of the corresponding wavelength of the 3rd resonant frequency can be the electricity calculated according to frequency 5.8GHz Length.
Current signal after terminal inner is needed processing is gone out by aerial radiation, then current signal passes through PCB16 On antenna feed end 17 flow through feed minor matters 14, corresponding antenna minor matters and ground connection minor matters 15 reach PCB earth terminal 18, shape Into resonant tank so as to produce radiation field, current signal is radiate in the form of an electromagnetic wave.Assuming that at terminal inner The current signal of reason is the signal that centre frequency is 5.8GHz frequency ranges, then the current signal enters feed by antenna feed end 17 Minor matters 14, third antenna minor matters 13 and ground connection minor matters 15 reach PCB16 one closed loop of formation of earth terminal 18, so as to produce Radiation field, the current signal is radiate in the form of an electromagnetic wave；It should be noted that the current signal can also pass through First PIFA antennas and the 2nd PIFA antennas are radiate in the form of an electromagnetic wave, only because loop aerial can be operated in In three resonant frequencies, therefore the electromagnetic wave signal intensity being radiate via loop aerial is compared with the first PIFA antennas and the 2nd PIFA The electromagnetic intensity of aerial radiation is big, it is easy to which the electronic equipment of opposite end is received.It should be noted that merely just simple introduce The process that is sent current signal by antenna, utilizes the antenna in the embodiment of the present invention to receive the electromagnetism of corresponding band Ripple signal, and it is similar with the principle of the transmission process that the electromagnetic wave signal is converted to the principle of the process of current signal, This is repeated no more.
The embodiment of the present invention provides a kind of antenna, passes through constitute third antenna minor matters, feed minor matters and ground connection minor matters The electric size length of loop aerial is set to the 1/2 of the 3rd resonant frequency corresponding wavelength so that it is humorous that the loop aerial produces the 3rd Vibration frequency, so that the bandwidth of operation of antenna is extended into broader frequency band, and then goes in wide band electronic equipment, Increase the scope of application of antenna.
Further, on the basis of above-described embodiment, the first antenna minor matters 11, the second antenna minor matters 12 and the 3rd The vertical height between plane and PCB16 where antenna minor matters 13 can be that between 3mm-5mm, can so cause antenna only Less space inside occupied terminal is needed just to widen the working band of oneself.
Can specifically there are two kinds of embodiments, be respectively：
The first embodiment：The antenna is located in the cavity formed by the protecgulum and bonnet of terminal, and the antenna is also Including antenna holder 19, the PCB16 and antenna holder 19 are located in the cavity, wherein, the antenna holder 19 is arranged on The PCB16 one side towards the bonnet, the first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 are arranged on the one side towards the bonnet of the antenna holder 19.
Specifically, being referred to Fig. 1, show that the position of each minor matters in antenna holder 19 and the antenna is closed in Fig. 1 It is (protecgulum and bonnet of terminal not shown in Fig. 1), the antenna holder 19 is arranged on the one of the bonnet of PCB16 terminaloriented Face, the first antenna minor matters 11 of the antenna, the second antenna minor matters 12 and third antenna minor matters 13 are arranged on antenna holder 19 In approximately the same plane, and the plane is the one side of the terminaloriented bonnet of antenna holder 19.That is, can be with by antenna holder 19 So that hanging down between the plane and PCB16 of the first antenna minor matters 11, the second antenna minor matters 12 and the place of third antenna minor matters 13 Directly highly it is maintained between 3mm-5mm, so that the antenna takes the space of less terminal inner.
Second of embodiment：The antenna is located in the cavity formed by the protecgulum and bonnet of terminal, described PCB16 In in the cavity, the first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 are arranged on the bonnet The one side towards PCB16.
Specifically, the first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 in the antenna are same One plane, and the plane is the one side towards PCB16 of terminal bonnet, i.e. first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 be located at plane of terminal bonnet, and the plane is terminal bonnet towards PCB16's Simultaneously, can so cause plane where first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 with Vertical height between PCB16 is between 3mm-5mm, so that the antenna takes the space of less terminal inner.
The embodiment of the present invention provides a kind of antenna, passes through constitute third antenna minor matters, feed minor matters and ground connection minor matters The electric size length of loop aerial is set to the 1/2 of the 3rd resonant frequency corresponding wavelength so that it is humorous that the loop aerial produces the 3rd Vibration frequency, sets so as to which the bandwidth of operation of antenna is extended into broader frequency band, and then goes for wide band electronics In standby；In addition, producing the 3rd resonant frequency without the single parasitic minor matters of increase.First antenna minor matters, the second antenna minor matters with And the plane where third antenna minor matters can be between PCB vertical height between 3mm-5mm so that the antenna take it is smaller Terminal inner space；Further, PCB only has two contact points of antenna feed end and earth terminal with antenna, further makes Obtain antenna and take less PCB surface product, and due to the reduction on PCB with antenna contacts, it is also possible that PCB cost drop It is low.
The structural representation for the antenna embodiment two that Fig. 2 provides for the present invention, the antenna embodiment that Fig. 3 provides for the present invention Two return loss analogous diagram, the efficiency analogous diagram for the antenna embodiment two that Fig. 4 provides for the present invention.In the base of above-described embodiment On plinth, further, the first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 can beType Structure, the antenna minor matters 12 of first end 111 and second of the first ends 131 of third antenna minor matters 13 respectively with first antenna minor matters 11 First end 121 electrically connect.
Specifically, first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 form oneType Structure, first antenna minor matters 11 here can be parallel with the second antenna minor matters 12, and the second antenna minor matters 12 that can also get along well are flat OK, as long as ensuring the first end 121 and feed minor matters 14 of the antenna minor matters 12 of first end 111 and second of first antenna minor matters 11 First end 141 is electrically connected, and the second end 112 of first antenna minor matters 11 and the second end 122 of the second antenna minor matters 12 have suitably Gap.It should be noted that described Fig. 1 and Fig. 2 difference is to be illustrated that first antenna minor matters 11 and second in Fig. 1 The situation parallel with the second antenna minor matters 12 of first antenna minor matters 11 is illustrated that in the not parallel situation of antenna minor matters 12, Fig. 2.
Feed minor matters 14, ground connection minor matters 15 and the first PIFA antennas of formation of first antenna minor matters 11；Feed minor matters 14, ground connection The antenna minor matters 12 of minor matters 15 and second the 2nd PIFA antennas of formation；Pass through third antenna minor matters 13 and feed minor matters 14, ground connection branch Section 15 constitutes loop aerial, by the way that the electric size of the loop aerial is set into the 1/2 of the 3rd resonant frequency corresponding wavelength so that The loop aerial constituted can produce the 3rd resonant frequency；Here electric size actually refers to the antenna feed by PCB16 The electricity for the ring that the earth terminal 18 that electric end 17 reaches PCB16 via feed minor matters 14, third antenna minor matters 13, ground connection minor matters 15 is constituted Length, that is, be exactly loop aerial electric size.
Return loss of the antenna of different height on resonance point is respectively illustrated in Fig. 3, it is as seen from Figure 3, different Antenna height under, the return loss for the antenna being operated on three resonance points is all smaller；Different height are respectively illustrated in Fig. 4 The efficiency of antenna of the antenna of degree on resonance point, as seen from Figure 4, under different antenna heights, is operated in three resonance The efficiency of antenna on point is all than larger.
In order to preferably radiate current signal, the second antenna minor matters 12 can be located at the of PCB16 One edge side 20, third antenna minor matters 13 can be located at PCB17 second edge side 21, and particular location may refer to shown in Fig. 2. The antenna is located at a corner of the upper two edge sides formation of PCB16.It should be noted that the antenna may be located on Other corners of the upper two edge sides formation of PCB, the embodiment of the present invention is not limited to this.
The embodiment of the present invention provides a kind of antenna, passes through constitute third antenna minor matters, feed minor matters and ground connection minor matters The electric size length of loop aerial is set to the 1/2 of the 3rd resonant frequency corresponding wavelength so that it is humorous that the loop aerial produces the 3rd Vibration frequency, so that the bandwidth of operation of antenna is extended into broader frequency band, and then goes in wide band electronic equipment； In addition, without increase, individually parasitic minor matters produce the 3rd resonant frequency, and first antenna minor matters, the second antenna minor matters and Plane where third antenna minor matters can be between PCB vertical height between 3mm-5mm so that the antenna take it is less The space of terminal inner；Further, PCB only has two contact points of antenna feed end and earth terminal with antenna, further such that Antenna takes less PCB surface product, and due to the reduction on PCB with antenna contacts, it is also possible that PCB cost drop It is low.
The structural representation for the antenna embodiment three that Fig. 5 provides for the present invention, the antenna embodiment that Fig. 6 provides for the present invention Three return loss analogous diagram, the efficiency analogous diagram for the antenna embodiment three that Fig. 7 provides for the present invention.As shown in figure 5, described On the basis of embodiment, further, the first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 areType structure, the first end 131 of third antenna minor matters 13 and the antenna of first end 111 and second of first antenna minor matters 11 The first end 121 of minor matters 12 is flushed.
Specifically, first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 form oneType Structure, the third antenna minor matters 13, the three of 11 and second antenna minor matters of first antenna minor matters 12 can be with parallel, can also be uneven OK, as long as ensuring the first end 111 of first antenna minor matters 11, the first end 121 of the second antenna minor matters 12, third antenna minor matters 13 First end 131 electrically connected with feeding the first end 141 of minor matters 14, the second end 112 of first antenna minor matters 11, the second antenna branch Second end 122 of section 12 and the second end 132 of third antenna minor matters 13 are in a plane, first antenna minor matters 11, the second antenna branch Section 12 and third antenna minor matters 13 have suitable interval.Fig. 5 is closed so that three is parallel as example to illustrate specifically to connect System.
The first end 131 of third antenna minor matters 13 and the antenna minor matters of first end 111 and second of first antenna minor matters 11 12 first end 121 is flushed, and the concept mentioned here flushed may refer to shown in Fig. 5 structure, even PCB16 towards The one side of bonnet comes locative words, x-axis and y-axis as shown in Figure 5, the first of third antenna minor matters 13 with transverse and longitudinal coordinate End 131 is phase with the first end 111 of first antenna minor matters 11, the x coordinate value of the position of the first end 121 of the second antenna minor matters 12 With.
Feed minor matters 14, ground connection minor matters 15 and the first PIFA antennas of formation of first antenna minor matters 11；Feed minor matters 14, ground connection The antenna minor matters 12 of minor matters 15 and second the 2nd PIFA antennas of formation；Third antenna minor matters 13 and feed minor matters 14, ground connection minor matters 15 Loop aerial is constituted, the electric size of the loop aerial is the 1/2 of the 3rd resonant frequency corresponding wavelength, can so to be constituted Loop aerial can produce the 3rd resonant frequency；Here electric size actually refers to the antenna feed end 17 by PCB16 The electrical length for the ring that the earth terminal 18 for reaching PCB16 via feed minor matters 14, third antenna minor matters 13, ground connection minor matters 15 is constituted, It is exactly loop aerial electric size.
In order to preferably radiate current signal, the antenna of the structure can be turned positioned at any of PCB16 At angle (for example, the first edge side 20 and second edge side 21 form the turning).Fig. 5 is that the antenna is located at PCB16 Edge side simple signal, but the embodiment of the present invention is without limitation.Optionally, the layout of the aerial position in Fig. 5, makes Obtain antenna and there is two open radiation borders (top edge and left hand edge i.e. shown in Fig. 5), its antenna feed end 17 and ground connection The position at end 18 is easy to do more preferable impedance matching with PCB16, so that with more preferable antenna efficiency.Respectively illustrated in Fig. 6 Antenna respectively positioned at PCB16 top edge (layout one) and left hand edge (being laid out two) when return loss on resonance point, in Fig. 7 The efficiency of antenna on resonance point when antenna is located at PCB16 top edge and left hand edge respectively is shown respectively.By Fig. 6 and Fig. 7 As can be seen that the antenna of this structure is respectively provided with less return loss and larger antenna efficiency on three resonance points.
The embodiment of the present invention provides a kind of antenna, passes through constitute third antenna minor matters, feed minor matters and ground connection minor matters The electric size length of loop aerial is set to the 1/2 of the 3rd resonant frequency corresponding wavelength so that it is humorous that the loop aerial produces the 3rd Vibration frequency, so that the bandwidth of operation of antenna is extended into broader frequency band, and then goes in wide band electronic equipment； In addition, without increase, individually parasitic minor matters produce the 3rd resonant frequency, and first antenna minor matters, the second antenna minor matters and Plane where third antenna minor matters can be between PCB vertical height be maintained between 3mm-5mm so that the antenna take compared with The space of small terminal inner；Further, PCB only has two contact points of antenna feed end and earth terminal with antenna, further So that antenna takes less PCB surface product, and due to the reduction on PCB with antenna contacts, it is also possible that PCB cost Reduction.
The structural representation for the antenna embodiment four that Fig. 8 provides for the present invention, the antenna includes：First antenna minor matters 31, Second antenna minor matters 32, feed minor matters 33 and ground connection minor matters 34；Wherein, the first end 331 of the feed minor matters 33 is respectively with first The first end 311 of antenna minor matters 31, the first end 321 of the second antenna minor matters 32 are electrically connected, the second end 332 of feed minor matters 33 with Antenna feed end 36 on PCB35 is electrically connected, and is grounded the second end 322 of the antenna minor matters 32 of first end 341 and second of minor matters 34 Electrical connection, the second end 342 of ground connection minor matters 34 is electrically connected with the earth terminal 37 on PCB35；The first antenna minor matters 31 and feedback Electric minor matters 33, ground connection minor matters 34 constitute the first PIFA antennas, and the first PIFA antennas are used to produce the first resonant frequency；Described Two antenna minor matters 32 constitute loop aerial with feed minor matters 33, ground connection minor matters 34, and the loop aerial is used to produce the second resonance frequency Rate；Wherein, the electric size length of the loop aerial is the 1/2 of the second resonant frequency corresponding wavelength.
Wherein, the first resonant frequency can be 2.4GHz-2.5GHz, and the second resonant frequency can be 4.9GHz-5.9GHz.
Specifically, as shown in figure 8, first antenna minor matters 31, feed minor matters 33 and ground connection minor matters 34 constitute the first PIFA days Line；Wherein, the first end 331 of feed minor matters 33 is electrically connected with the first end 311 of first antenna minor matters 31, feeds the of minor matters 33 Two ends 332 are electrically connected with the antenna feed end 36 on PCB35.By setting the electric size length of the first PIFA antennas to cause first PIFA antennas produce the first resonant frequency, and first resonant frequency can be 2.4GHz.The electric size of first PIFA antennas is long Degree can be the corresponding wavelength of the first resonant frequency 1/4, and the first PIFA antennas electric size length can be from PCB35 antenna feed end 36 arrives the electrical length at the second end 312 of first antenna minor matters 31 via feed minor matters 33.Here The 1/4 of the corresponding wavelength of one resonant frequency is the electrical length calculated according to resonant frequency 2.4GHz.
Second antenna minor matters 32 constitute loop aerial with feed minor matters 33, ground connection minor matters 34；Wherein, the feed minor matters 33 First end 331 is electrically connected with the first end 321 of the second antenna minor matters 32, the day on the second end 332 and PCB35 of feed minor matters 33 Line feed end 36 is electrically connected.By the way that the electric size of the loop aerial is set into the 1/2 of the second resonant frequency corresponding wavelength so that The loop aerial constituted produces the second resonant frequency, and second resonant frequency can be 5.2GHz.Here loop aerial Electric size actually refers to the antenna feed end 36 by PCB35 via feed minor matters 33, the second antenna minor matters 32, ground connection minor matters 34 reach the electrical length for the ring that earth terminal 37 is constituted, that is, are exactly loop aerial electric size.
It should be noted that the position of the antenna minor matters 32 of first antenna minor matters 31 and second is one simple in Fig. 8 Signal, first antenna minor matters 31 can be parallel with the second antenna minor matters 32, can also be with the not parallel (Fig. 8 of the second antenna minor matters 32 Show a case that the two is not parallel), as long as ensuring the of the antenna minor matters 32 of first end 311 and second of first antenna minor matters 31 One end 321 is electrically connected with feeding the first end 331 of minor matters 33, the second end 312 of first antenna minor matters 31 and the second antenna minor matters There is suitable gap between 32 the second end 322.
Current signal after terminal inner is needed processing is gone out by aerial radiation, then current signal passes through PCB35 On antenna feed end 36 flow through feed minor matters 33, corresponding antenna minor matters and ground connection minor matters 34 reach PCB35 earth terminal 37, Form resonant tank to produce radiation field, current signal is radiate in the form of an electromagnetic wave.Assuming that terminal inner The current signal of processing is that centre frequency is the signal in 5.8GHz frequency ranges, then the current signal enters by antenna feed end 36 One closed loop of formation of earth terminal 37 that minor matters 33, the second antenna minor matters 32 and ground connection minor matters 34 reach PCB35 is fed, so that Radiation field is produced, the current signal is radiate in the form of an electromagnetic wave；It should be noted that the current signal also can It is radiate in the form of an electromagnetic wave by the first PIFA antennas, only because loop aerial can be operated in the second resonant frequency On, therefore the electromagnetic wave signal intensity being radiate via loop aerial will compared with the electromagnetic intensity of the first PIFA aerial radiations Greatly, it is easy to which the electronic equipment of opposite end is received.Current signal is sent out by antenna it should be noted that merely just simply describing The process seen off, the electromagnetic wave signal in corresponding band is received using the antenna in the embodiment of the present invention, and by the electromagnetic wave The principle that signal is converted to the process of current signal is similar with the principle of above-mentioned transmission process, will not be repeated here.
The embodiment of the present invention provides a kind of antenna, passes through constitute the second antenna minor matters, feed minor matters and ground connection minor matters The electric size length of loop aerial is set to the 1/2 of the second resonant frequency corresponding wavelength so that it is humorous that the loop aerial produces second Vibration frequency, so that the bandwidth of operation of antenna is extended into broader frequency band, and then goes in wide band electronic equipment.
Further, further, on the basis of above-mentioned embodiment illustrated in fig. 8, the first antenna minor matters 31 and The vertical height between plane and PCB35 where two antenna minor matters 32 can be between 3mm-5mm, so that antenna is only needed Less space can just widen the working band of oneself inside occupied terminal.Can specifically there are two kinds of embodiments, be respectively：
The first embodiment：The antenna is located in the cavity formed by the protecgulum and bonnet of terminal, and the antenna is also Including antenna holder, the PCB35 and antenna holder 38 are located in the cavity, wherein, the antenna holder 38 is arranged on The PCB35 one side towards the bonnet, the antenna minor matters 32 of first antenna minor matters 31 and second are arranged on the antenna branch The one side towards the bonnet of frame 38.
Specifically, being referred to Fig. 8, the position (figure of each minor matters in antenna holder 38 and the antenna is shown in Fig. 8 The protecgulum and bonnet of terminal not shown in 8), the antenna holder 38 is arranged on the one side of the bonnet of PCB35 terminaloriented, institute The antenna minor matters 32 of first antenna minor matters 31 and second for stating antenna are arranged in a plane of antenna holder 38, and the plane For the one side of the terminaloriented bonnet of antenna holder 38.That is, the first antenna minor matters 31 can be caused by antenna holder 38 Vertical height between the plane and PCB35 where the second antenna minor matters 32 is maintained between 3mm-5mm, so that the antenna Take the space of less terminal inner.
Second of embodiment：The antenna is located in the cavity formed by the protecgulum and bonnet of terminal, described PCB35 In in the cavity, the antenna minor matters 32 of first antenna minor matters 31 and second be arranged on the bonnet towards the one of PCB35 Face.
Specifically, the antenna minor matters 32 of first antenna minor matters 31 and second of the antenna are in a plane, and the plane Be located at terminal bonnet for the one side towards PCB35 of terminal bonnet, i.e. the antenna minor matters 32 of first antenna minor matters 31 and second one Individual plane, and the plane is the one side towards PCB35 of terminal bonnet, can so cause first antenna minor matters 31 and second The vertical height between plane and PCB35 where antenna minor matters 32 is between 3mm-5mm, so that antenna occupancy is smaller Terminal inner space.
The embodiment of the present invention provides a kind of antenna, passes through constitute the second antenna minor matters, feed minor matters and ground connection minor matters The electric size length of loop aerial is set to the 1/2 of the second resonant frequency corresponding wavelength so that it is humorous that the loop aerial produces second Vibration frequency, so that the bandwidth of operation of antenna is extended into broader frequency band, and then goes in wide band electronic equipment. In addition, the plane where first antenna minor matters and the second antenna minor matters can be between PCB vertical height between 3mm-5mm, make Obtain the space that the antenna takes less terminal inner.
The structural representation for the antenna embodiment five that Fig. 9 provides for the present invention, Figure 10 is implemented for the antenna that the present invention is provided The return loss analogous diagram of example five.On the basis of embodiment illustrated in fig. 8, further, the first antenna minor matters 31 and Two antenna minor matters 32 areType structure；The first of the antenna minor matters 32 of first end 311 and second of the first antenna minor matters 31 End 321 is flushed.
It should be noted that Fig. 8 and Fig. 9 difference is, the antenna of first antenna minor matters 31 and second is illustrated that in Fig. 8 The not parallel situation of minor matters 32, Fig. 9 is illustrated that the situation parallel with the second antenna minor matters 32 of first antenna minor matters 31.
Specifically, the second antenna minor matters 32 and the first antenna minor matters 31 form oneType structure, and It is mentioned here to flush and the first end 321 of the second antenna minor matters 32 is flushed with the first end 311 of first antenna minor matters 31 Concept may refer to shown in Fig. 9 structure, x-axis and y-axis as shown in Figure 9, even carry out locative words with transverse and longitudinal coordinate, Then the first end 321 of the second antenna minor matters 32 and the x coordinate value of the position of the first end 311 of first antenna minor matters 31 are identical 's.
Feed minor matters 33, ground connection minor matters 34 and the first PIFA antennas of formation of first antenna minor matters 31；Feed minor matters 33, ground connection The antenna minor matters 32 of minor matters 34 and second formation loop aerial；Here the bandwidth of operation that the loop aerial formed can be covered is The bandwidth of operation of two resonant frequencies (such as 5.2GHz).The electric size of the loop aerial is the second resonant frequency corresponding wavelength of correspondence 1/2.Wherein, the electric size of loop aerial here actually refers to the antenna feed end 36 by PCB35 via feed branch Save the 33, second antenna minor matters 32, the electrical length for the ring that the ground connection arrival of minor matters 34 PCB35 earth terminal 37 is constituted.
In order to preferably radiate current signal, the antenna of the structure can be located at PCB35 any side Edge side is (for example：First edge side 39 or second edge side 40 in Fig. 9).The return loss of the antenna is shown in Figure 10 (S11).As seen from Figure 10, the antenna of this structure is respectively provided with less return loss on its resonance point.
The embodiment of the present invention provides a kind of antenna, passes through constitute the second antenna minor matters, feed minor matters and ground connection minor matters The electric size length of loop aerial is set to the 1/2 of the second resonant frequency corresponding wavelength so that it is humorous that the loop aerial produces second Vibration frequency, so that the bandwidth of operation of antenna is extended into broader frequency band, and then goes in wide band electronic equipment.
The structural representation for the terminal embodiment one that Figure 11 provides for the present invention, refers to Figure 11 and Fig. 1, the terminal includes RF processing unit 41, baseband processing unit 42 and antenna 43.
The antenna 43, including first antenna minor matters 11, the second antenna minor matters 12, third antenna minor matters 13, feed minor matters 14 and ground connection minor matters 15；Wherein, the first end 141 of the feed minor matters 14 first end 111 respectively with first antenna minor matters 11, The first end 121 of two antenna minor matters 12, the first end 131 of third antenna minor matters 13 are electrically connected, and the second of the feed minor matters 14 End 142 is electrically connected with the antenna feed end 17 on PCB16, be grounded minor matters 15 first end 151 and third antenna minor matters 13 the Two ends 132 are electrically connected, and the second end 152 of ground connection minor matters 15 is electrically connected with the earth terminal 18 on PCB16；The first antenna minor matters 11 constitute the first PIFA antennas with feed minor matters 14, ground connection minor matters 15, and the first PIFA antennas are used to produce the first resonant frequency； The second antenna minor matters 12 constitute the 2nd PIFA antennas with feed minor matters 14, ground connection minor matters 15, and the 2nd PIFA antennas are used for Produce the second resonant frequency；The third antenna minor matters 13, feed minor matters 14 and ground connection minor matters 15 constitute loop aerial, the annular Antenna is used to produce the 3rd resonant frequency, wherein, the electric size of the loop aerial is the 1/2 of the 3rd resonant frequency corresponding wavelength.
The antenna 43, for by the transmission of wireless signals received to RF processing unit 41, or by radio frequency processing The transmission signal of unit 41 is converted to electromagnetic wave, sends；RF processing unit 41, it is wireless for what is received to antenna 43 Signal carries out frequency-selecting, amplification, down-converted, and converts thereof into intermediate-freuqncy signal or baseband signal is sent to baseband processing unit 42, or, baseband signal or intermediate-freuqncy signal for baseband processing unit 42 to be sent pass through antenna by up-conversion, amplification 43 send；Baseband processing unit 42, is handled the intermediate-freuqncy signal or baseband signal received.
Wherein, the first resonant frequency can be 2.4GHz-2.5GHz, and the centre frequency of the second resonant frequency can be 5.2GHz, the centre frequency of the 3rd resonant frequency can be 5.8GHz.
Further, the plane where the first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 Vertical height between PCB16 is between 3mm-5mm.
Optionally, the antenna 43 is located in the cavity formed by the protecgulum and bonnet of terminal, and the antenna 43 also includes day Line bracket 19, the PCB16 and antenna holder 19 are located in the cavity, wherein, the antenna holder 19 is arranged on the PCB16 The one side towards the bonnet, first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 are arranged on antenna The one side towards the bonnet of support 19.
Optionally, the antenna 43 is located in the cavity formed by the protecgulum and bonnet of terminal, and the PCB16 is located at described In cavity, first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 be arranged on the bonnet towards PCB16 One side.
Optionally, the first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 areType knot Structure, the antenna minor matters of first end 111 and 1 second of the first ends 131 of the third antenna minor matters 13 respectively with first antenna minor matters 11 12 first end 121 is vertically electrically connected.Also, optional, the second antenna minor matters 12 are located at PCB16 first edge side 20, third antenna minor matters 13 are located at PCB16 second edge side 21.
Optionally, the first antenna minor matters 11, the second antenna minor matters 12 and third antenna minor matters 13 areType knot Structure, the first end 131 of the third antenna minor matters 13 and the antenna minor matters 12 of first end 111 and second of first antenna minor matters 11 First end 121 is flushed.Also, optional, the antenna is located at PCB16 any edge side.
It should be noted that antenna 43 herein is referred to the description of the antenna structure embodiment in described Fig. 1-Fig. 7, It will not be repeated here.The terminal can be data card, wireless Internet card, wireless router, mobile phone, Wearable, glasses, matchmaker The communication terminals such as body device.
The structural representation for the terminal embodiment two that Figure 12 provides for the present invention, as shown in figs. 8 and 12, the terminal includes RF processing unit 44, baseband processing unit 45 and antenna 46.
The antenna 46 includes：First antenna minor matters 31, the second antenna minor matters 32, feed minor matters 33 and ground connection minor matters 34； Wherein, the first end 331 of the feed minor matters 33 first end 311 respectively with first antenna minor matters 31, the second antenna minor matters 32 First end 321 is electrically connected, and the second end 332 of feed minor matters 33 is electrically connected with the antenna feed end 36 on PCB35, is grounded minor matters 34 First end 341 electrically connected with the second end 322 of the second antenna minor matters 32, the second end 342 of ground connection minor matters 34 with PCB35 Earth terminal 37 is electrically connected；The first antenna minor matters 31 constitute the first PIFA antennas with feed minor matters 33, ground connection minor matters 34, and this One PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters 32 are constituted with feed minor matters 33, ground connection minor matters 34 Loop aerial, the loop aerial is used to produce the second resonant frequency；Wherein, the electric size of the loop aerial is second resonance The 1/2 of frequency corresponding wavelength.
The antenna 46, for by the transmission of wireless signals received to RF processing unit 44, or by radio frequency processing The transmission signal of unit 44 is converted to electromagnetic wave, sends；RF processing unit 44, it is wireless for what is received to antenna 46 Signal carries out frequency-selecting, amplification, down-converted, and converts thereof into intermediate-freuqncy signal or baseband signal is sent to baseband processing unit 45, or, baseband signal or intermediate-freuqncy signal for baseband processing unit 45 to be sent pass through antenna by up-conversion, amplification 46 send；Baseband processing unit 45, is handled the intermediate-freuqncy signal or baseband signal received.
Wherein, the first resonant frequency can be 2.4GHz-2.5GHz, and the second resonant frequency can be 4.9GHz-5.9GHz.
Further, hanging down between the plane and PCB35 where the 31 and second antenna minor matters of first antenna minor matters 32 Straight height is between 3mm-5mm.
Optionally, the antenna 46 is located in the cavity formed by the protecgulum and bonnet of terminal, and the antenna 46 also includes day Line bracket 38, PCB35 and antenna holder 38 are located in the cavity, the antenna holder 38 be arranged on PCB35 towards after described The one side of lid, the antenna minor matters 32 of first antenna minor matters 31 and second be arranged on antenna holder 38 towards the one of the bonnet Face.
Optionally, the antenna 46 is located in the cavity formed by the protecgulum and bonnet of terminal, and the PCB35 is located at the chamber In vivo, the antenna minor matters 32 of first antenna minor matters 31 and second are arranged on the one side towards PCB35 of the bonnet.
Optionally, the antenna minor matters 32 of first antenna minor matters 31 and second areType structure, the first antenna minor matters The first end 322 of the 31 antenna minor matters 32 of first end 311 and second is flushed.
It should be noted that antenna 46 herein is referred to retouch antenna structure embodiment in above-mentioned Fig. 8-Figure 10 State, will not be repeated here.The terminal can be data card, wireless Internet card, wireless router, mobile phone, Wearable, eye The communication terminals such as mirror, media apparatus.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology The scope of scheme.

Claims (20)

1. a kind of antenna, it is characterised in that including：First antenna minor matters, the second antenna minor matters, third antenna minor matters, feed branch Section and ground connection minor matters；Wherein, the first end first end respectively with the first antenna minor matters of the feed minor matters, described second The first end of antenna minor matters, the electrical connection of the first end of the third antenna minor matters, the second end and the printing electricity of the feed minor matters Antenna feed end electrical connection on the plate PCB of road, the first end of the ground connection minor matters and the second end electricity of the third antenna minor matters Connection, the second end of the ground connection minor matters is electrically connected with the earth terminal on the PCB；
The first antenna minor matters constitute the first PIFA antennas, the first PIFA with the feed minor matters, the ground connection minor matters Antenna is used to produce the first resonant frequency；The second antenna minor matters constitute second with the feed minor matters, the ground connection minor matters PIFA antennas, the 2nd PIFA antennas are used to produce the second resonant frequency；The third antenna minor matters, the feed minor matters and The ground connection minor matters constitute loop aerial, and the loop aerial is used to produce the 3rd resonant frequency, wherein, the loop aerial Electric size is the 1/2 of the 3rd resonant frequency corresponding wavelength；
The first antenna minor matters, the second antenna minor matters and the third antenna minor matters areType structure, the described 3rd The first end of antenna minor matters is electrically connected with the first end of the first antenna minor matters and the first end of the second antenna minor matters respectively Connect.
2. antenna according to claim 1, it is characterised in that the first antenna minor matters, the second antenna minor matters and The vertical height between plane and the PCB where the third antenna minor matters is between 3mm-5mm.
3. antenna according to claim 1 or 2, it is characterised in that the antenna is located at protecgulum and rear cap-shaped by terminal Into cavity in, the antenna also includes antenna holder, and the PCB and the antenna holder are located in the cavity, wherein, institute State the one side towards the bonnet that antenna holder is arranged on the PCB, the first antenna minor matters, the second antenna minor matters The one side towards the bonnet of the antenna holder is arranged on the third antenna minor matters.
4. antenna according to claim 1 or 2, it is characterised in that the antenna is located at protecgulum and rear cap-shaped by terminal Into cavity in, the PCB be located at the cavity in, the first antenna minor matters, the second antenna minor matters and the described 3rd Antenna minor matters are arranged on the one side towards the PCB of the bonnet.
5. antenna according to claim 1 or 2, it is characterised in that the second antenna minor matters are located at the first of the PCB Edge side, the third antenna minor matters are located at the second edge side of the PCB.
6. a kind of antenna, it is characterised in that including：First antenna minor matters, the second antenna minor matters, third antenna minor matters, feed branch Section and ground connection minor matters；Wherein, the first end first end respectively with the first antenna minor matters of the feed minor matters, described second The first end of antenna minor matters, the electrical connection of the first end of the third antenna minor matters, the second end and the printing electricity of the feed minor matters Antenna feed end electrical connection on the plate PCB of road, the first end of the ground connection minor matters and the second end electricity of the third antenna minor matters Connection, the second end of the ground connection minor matters is electrically connected with the earth terminal on the PCB；
The first antenna minor matters constitute the first PIFA antennas, the first PIFA with the feed minor matters, the ground connection minor matters Antenna is used to produce the first resonant frequency；The second antenna minor matters constitute second with the feed minor matters, the ground connection minor matters PIFA antennas, the 2nd PIFA antennas are used to produce the second resonant frequency；The third antenna minor matters, the feed minor matters and The ground connection minor matters constitute loop aerial, and the loop aerial is used to produce the 3rd resonant frequency, wherein, the loop aerial Electric size is the 1/2 of the 3rd resonant frequency corresponding wavelength；
The first antenna minor matters, the second antenna minor matters and the third antenna minor matters areType structure, the described 3rd The first end of antenna minor matters is flushed with the first end of the first antenna minor matters and the first end of the second antenna minor matters.
7. antenna according to claim 6, it is characterised in that the first antenna minor matters, the second antenna minor matters and The vertical height between plane and the PCB where the third antenna minor matters is between 3mm-5mm.
8. the antenna according to claim 6 or 7, it is characterised in that the antenna is located at protecgulum and rear cap-shaped by terminal Into cavity in, the antenna also includes antenna holder, and the PCB and the antenna holder are located in the cavity, wherein, institute State the one side towards the bonnet that antenna holder is arranged on the PCB, the first antenna minor matters, the second antenna minor matters The one side towards the bonnet of the antenna holder is arranged on the third antenna minor matters.
9. the antenna according to claim 6 or 7, it is characterised in that the antenna is located at protecgulum and rear cap-shaped by terminal Into cavity in, the PCB be located at the cavity in, the first antenna minor matters, the second antenna minor matters and the described 3rd Antenna minor matters are arranged on the one side towards the PCB of the bonnet.
10. the antenna according to claim 6 or 7, it is characterised in that the antenna is located at any edge side of the PCB.
11. a kind of terminal, it is characterised in that including：RF processing unit, baseband processing unit and antenna；
Wherein, the antenna includes first antenna minor matters, the second antenna minor matters, third antenna minor matters, feed minor matters and ground connection branch Section；Wherein, the first end first ends respectively with the first antenna minor matters of the feed minor matters, the second antenna minor matters First end, the electrical connection of the first end of the third antenna minor matters, the second end of the feed minor matters and the antenna feed end on PCB Electrical connection, the first end of the ground connection minor matters is electrically connected with the second end of the third antenna minor matters, described to be grounded the of minor matters Two ends are electrically connected with the earth terminal on the PCB；The first antenna minor matters are constituted with the feed minor matters, the ground connection minor matters First PIFA antennas, the first PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters and the feed Minor matters, the ground connection minor matters constitute the 2nd PIFA antennas, and the 2nd PIFA antennas are used to produce the second resonant frequency；Described Triantennary minor matters, the feed minor matters and the ground connection minor matters constitute loop aerial, and it is humorous that the loop aerial is used for generation the 3rd Vibration frequency, wherein, the electric size of the loop aerial is the 1/2 of the 3rd resonant frequency corresponding wavelength；
The antenna, for giving the RF processing unit by the transmission of wireless signals received, or by RF processing unit Transmission signal be converted to electromagnetic wave, send；The RF processing unit, for the wireless communication received to the antenna Number frequency-selecting, amplification, down-converted are carried out, and convert thereof into intermediate-freuqncy signal or baseband signal is sent to the Base-Band Processing list Member, or, baseband signal or intermediate-freuqncy signal for the baseband processing unit to be sent pass through institute by up-conversion, amplification Antenna is stated to send；The baseband processing unit, is handled the intermediate-freuqncy signal or the baseband signal received；
The first antenna minor matters, the second antenna minor matters and the third antenna minor matters areType structure, the described 3rd The first end of antenna minor matters is electrically connected with the first end of the first antenna minor matters and the first end of the second antenna minor matters respectively Connect.
12. terminal according to claim 11, it is characterised in that the first antenna minor matters, the second antenna minor matters Vertical height between the plane and the PCB where the third antenna minor matters is between 3mm-5mm.
13. the terminal according to claim 11 or 12, it is characterised in that the antenna be located at by the terminal protecgulum and In the cavity of bonnet formation, the antenna also includes antenna holder, and the PCB and the antenna holder are located in the cavity, Wherein, the antenna holder is arranged on the one side towards the bonnet of the PCB, the first antenna minor matters, described second Antenna minor matters and the third antenna minor matters are arranged on the one side towards the bonnet of the antenna holder.
14. the terminal according to claim 11 or 12, it is characterised in that the antenna is located at protecgulum and bonnet by terminal In the cavity of formation, the PCB is located in the cavity, the first antenna minor matters, the second antenna minor matters and described the Triantennary minor matters are arranged on the one side towards the PCB of the bonnet.
15. the terminal according to claim 11 or 12, it is characterised in that the second antenna minor matters are located at the PCB's First edge side, the third antenna minor matters are located at the second edge side of the PCB.
16. a kind of terminal, it is characterised in that including：RF processing unit, baseband processing unit and antenna；
Wherein, the antenna includes first antenna minor matters, the second antenna minor matters, third antenna minor matters, feed minor matters and ground connection branch Section；Wherein, the first end first ends respectively with the first antenna minor matters of the feed minor matters, the second antenna minor matters First end, the electrical connection of the first end of the third antenna minor matters, the second end of the feed minor matters and the antenna feed end on PCB Electrical connection, the first end of the ground connection minor matters is electrically connected with the second end of the third antenna minor matters, described to be grounded the of minor matters Two ends are electrically connected with the earth terminal on the PCB；The first antenna minor matters are constituted with the feed minor matters, the ground connection minor matters First PIFA antennas, the first PIFA antennas are used to produce the first resonant frequency；The second antenna minor matters and the feed Minor matters, the ground connection minor matters constitute the 2nd PIFA antennas, and the 2nd PIFA antennas are used to produce the second resonant frequency；Described Triantennary minor matters, the feed minor matters and the ground connection minor matters constitute loop aerial, and it is humorous that the loop aerial is used for generation the 3rd Vibration frequency, wherein, the electric size of the loop aerial is the 1/2 of the 3rd resonant frequency corresponding wavelength；
The antenna, for giving the RF processing unit by the transmission of wireless signals received, or by RF processing unit Transmission signal be converted to electromagnetic wave, send；The RF processing unit, for the wireless communication received to the antenna Number frequency-selecting, amplification, down-converted are carried out, and convert thereof into intermediate-freuqncy signal or baseband signal is sent to the Base-Band Processing list Member, or, baseband signal or intermediate-freuqncy signal for the baseband processing unit to be sent pass through institute by up-conversion, amplification Antenna is stated to send；The baseband processing unit, is handled the intermediate-freuqncy signal or the baseband signal received；
The first antenna minor matters, the second antenna minor matters and the third antenna minor matters areType structure, the described 3rd The first end of antenna minor matters is flushed with the first end of the first antenna minor matters and the first end of the second antenna minor matters.
17. terminal according to claim 16, it is characterised in that the first antenna minor matters, the second antenna minor matters Vertical height between the plane and the PCB where the third antenna minor matters is between 3mm-5mm.
18. the terminal according to claim 16 or 17, it is characterised in that the antenna be located at by the terminal protecgulum and In the cavity of bonnet formation, the antenna also includes antenna holder, and the PCB and the antenna holder are located in the cavity, Wherein, the antenna holder is arranged on the one side towards the bonnet of the PCB, the first antenna minor matters, described second Antenna minor matters and the third antenna minor matters are arranged on the one side towards the bonnet of the antenna holder.
19. the terminal according to claim 16 or 17, it is characterised in that the antenna is located at protecgulum and bonnet by terminal In the cavity of formation, the PCB is located in the cavity, the first antenna minor matters, the second antenna minor matters and described the Triantennary minor matters are arranged on the one side towards the PCB of the bonnet.
20. the terminal according to claim 16 or 17, it is characterised in that the antenna is located at any edge of the PCB Side.
CN201380003611.5A 2013-12-27 2013-12-27 Antenna and terminal Active CN105027352B (en)

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CN106067591B (en) * 2016-06-12 2021-05-04 北京小米移动软件有限公司 Antenna assembly
CN107834179B (en) * 2017-11-27 2023-08-11 深圳市信维通信股份有限公司 WIFI antenna of all-metal back cover
WO2020062293A1 (en) 2018-09-30 2020-04-02 华为技术有限公司 Antenna and terminal
US11460891B2 (en) * 2019-04-25 2022-10-04 Compal Electronics, Inc. Electronic device
CN112448140B (en) * 2019-08-30 2022-03-01 北京小米移动软件有限公司 Antenna module and terminal
CN112531329B (en) 2019-09-17 2024-01-02 北京小米移动软件有限公司 Antenna and terminal
CN113451788B (en) * 2020-03-24 2022-10-18 华为技术有限公司 Antenna, antenna module and wireless network equipment
CN114824749B (en) * 2021-01-22 2023-07-18 华为技术有限公司 Electronic equipment
CN116417791A (en) * 2021-12-29 2023-07-11 中兴通讯股份有限公司 Terminal equipment

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CN101719584A (en) * 2009-12-24 2010-06-02 深圳华为通信技术有限公司 Reconfigurable mobile phone built-in antenna and implementation method thereof
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CN101587983A (en) * 2008-05-21 2009-11-25 深圳富泰宏精密工业有限公司 Multi-frequency antenna and radio communication system having same
CN101719584A (en) * 2009-12-24 2010-06-02 深圳华为通信技术有限公司 Reconfigurable mobile phone built-in antenna and implementation method thereof
CN102918708A (en) * 2011-06-02 2013-02-06 松下电器产业株式会社 Antenna device

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Address before: 523808 Southern Factory Building (Phase I) Project B2 Production Plant-5, New Town Avenue, Songshan Lake High-tech Industrial Development Zone, Dongguan City, Guangdong Province

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