CN1249852C - Antenna unit - Google Patents
Antenna unit Download PDFInfo
- Publication number
- CN1249852C CN1249852C CN 02159802 CN02159802A CN1249852C CN 1249852 C CN1249852 C CN 1249852C CN 02159802 CN02159802 CN 02159802 CN 02159802 A CN02159802 A CN 02159802A CN 1249852 C CN1249852 C CN 1249852C
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- Prior art keywords
- antenna
- resonator
- antenna element
- electrode
- filter
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- 239000000758 substrate Substances 0.000 claims description 21
- 230000008878 coupling Effects 0.000 claims description 14
- 238000010168 coupling process Methods 0.000 claims description 14
- 238000005859 coupling reaction Methods 0.000 claims description 14
- 238000013016 damping Methods 0.000 claims description 13
- 239000003990 capacitor Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
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Abstract
In the antenna system 10A configured by integrally forming: an antenna section 22 having an antenna pattern 20 formed on a dielectric base 12 configured by stacking and baking a plurality of dielectric plate layers; and a filter 26 having two or more resonators 24A, 24B formed in the dielectric base 12, a via-hole 50 is extended and formed from a second input output electrode 30 to the vicinity of a feeding section 32 of the antenna pattern 20, an electrode 52 for forming a capacitance C5 with the feeding section 32 of the antenna pattern 20 is formed at a tip of the via-hole 50, and the capacitance C5 is set to be about a value by which the antenna pattern configuring the antenna section can configure a filter together with the resonators.
Description
Technical field
The present invention relates to a kind of antenna assembly, its have on the dielectric substrate of being formed on by the film formed antenna pattern of electrode.
Background technology
Thereby in order to make the antenna assembly miniaturization make the communicator miniaturization, multiple device has for example been proposed, wherein be formed on the surface of dielectric substrate and (for example see the open 10-41722 of Japanese laid-open patent, 9-162633, and 10-32413) by the film formed antenna pattern of electrode.
An advantage of said antenna device is, antenna assembly is directly installed on the wiring board.
But, be formed in the lip-deep antenna assembly of dielectric substrate,, and frequency band narrowed down because miniaturization makes gain reduce usually at the antenna pattern that constitutes by electrode film.
Therefore,, antenna is separated with ground plate in order to widen the frequency band of conventional antenna, with/or the shape of antenna is strengthened.
Summary of the invention
The present invention considers that the problems referred to above make, and the object of the present invention is to provide a kind of antenna assembly, the frequency band that it can widen antenna and do not enlarge the shape of antenna.
According to the present invention, a kind of antenna assembly is provided, it comprises: antenna element, it has one or more antenna patterns that are formed on the dielectric substrate; And be formed on a plurality of resonators on the dielectric substrate, this antenna element and this resonator are integrally formed, wherein the power unit of this antenna element is by electric capacity and a resonator coupling, and the value of electric capacity is specified to is convenient to be configured to filter, occur one or more damping peaks in this filter, the quantity of described damping peak is corresponding to the quantity of the described one or more antenna patterns outside the quantity of removing resonator.
According to another aspect of the present invention, a kind of antenna assembly is provided, it comprises: antenna element, it has one or several and is formed on antenna pattern on the dielectric substrate; And be formed on a plurality of resonators on this dielectric substrate, this antenna element and this resonator integrally form, wherein the power unit of this antenna element is by inductance and a resonator coupling, and the value of this inductance is determined like this, that is, make one or more antenna patterns of this antenna element be configured to filter with this resonator.
Usually, several damping peaks appear in the quantity according to resonator in the reflection characteristic of filter.For example, have at filter under the situation of two resonators, two damping peaks then occur.
According to the present invention, the power unit of antenna element links to each other by electric capacity or inductance resonator, and this electric capacity or inductance determined like this, that is, make one or several antenna pattern of described antenna element and described resonator constitute filter together.In this structure, by antenna pattern, additional resonator is in parallel with resonator in new ways.As a result, be configured to another filter.Therefore, in reflection characteristic, remove outside the corresponding damping peak of the quantity that quantity and antenna pattern occur, the corresponding damping peak of quantity of its quantity and resonator also occurs according to antenna assembly of the present invention.Thereby frequency band has been broadened.
As mentioned above, according to the present invention, need not enlarge antenna and just can realize having wide band antenna.Thereby, can help to use the electronic installation of this antenna assembly and antenna assembly to realize miniaturization.
In addition, just can realize wide band antenna, so can freely design difform antenna because need not strengthen antenna.
Realize coupling in order to make antenna element and resonator by electric capacity, one through hole extends near the position of the resonator power unit of antenna element, and wherein the end at this through hole forms an electrode, therefore forms electric capacity between the power unit of this electrode and antenna element.
In addition, realize coupling in order to make antenna element and resonator by inductance, this antenna assembly also comprises the connection electrode of extending from a resonator, and to form inductance, one of them through hole makes an end of this connection electrode be electrically connected with the power unit of antenna element.
When the explanation below also reading in conjunction with the accompanying drawing of expression the preferred embodiments of the present invention, can clearly be seen that above-mentioned purpose of the present invention, feature and advantage.
Description of drawings
Fig. 1 is the perspective view of first embodiment of the antenna assembly watched along a direction;
Fig. 2 is the decomposition diagram of first embodiment of antenna assembly;
Fig. 3 is the perspective view of first embodiment of the antenna assembly watched from another direction;
Fig. 4 is the equivalent circuit diagram of first embodiment of antenna assembly;
Fig. 5 is the reflection characteristic that obtains when the antenna unit directly links to each other with filter;
Fig. 6 is the reflection characteristic of first embodiment of antenna assembly;
Fig. 7 is the perspective view of second embodiment of antenna assembly; And
Fig. 8 is the equivalent circuit diagram of second embodiment of antenna assembly.
Embodiment
The embodiment of antenna assembly of the present invention is described to Fig. 8 below in conjunction with Fig. 1.
At first, to shown in Figure 3, has the dielectric substrate 12 that is configured to a plurality of tabular dielectric layers of sintering by stacked as Fig. 1 according to antenna assembly 10A of the present invention.Antenna assembly 10A comprises having at the antenna element 22 of an antenna pattern 20 that forms on the dielectric substrate 12 and have two or more resonator 24A, the 24B of formation dielectric substrate 12 in.Antenna element 22 and filter 26 integrally form.
The first resonator 24A of filter 26 comprises one 1/4 wave resonance electrode (the first resonance electrode 34a), and it is the open circuit end in a side, and facing to the first I/O electrode 28, is inserted with dielectric layer therebetween.The second resonator 24B comprises another 1/4 wave resonance electrode (the second resonance electrode 34B), and it is the end of open circuit in a side, and facing to the second I/O electrode 30, is inserted with dielectric layer therebetween.The antenna pattern 20 of antenna element 22 is formed by the electrode film on the upper surface of dielectric substrate 12, makes antenna pattern 20 have the shape of meander line.
As shown in Figure 1, antenna assembly 10A comprises I/O end 36, and it is formed on the first side 12a of dielectric substrate 12, and links to each other with the first I/O electrode 28 of filter 26.Grounding electrode 38 is respectively formed at the second and the 3rd side 12b of dielectric substrate 12, the part place corresponding to filter 26 of 12c and lower surface 12e.As shown in Figure 3, antenna assembly 10A comprises antenna fixed electrode 40, and it is formed on the 4th side 12d of dielectric substrate 12, and is relative with the open end 20a of antenna pattern 20, is inserted with dielectric layer therebetween.
Further specify antenna assembly 10A below with reference to Fig. 2.
At first, as shown in Figure 2, dielectric substrate 12 comprises the 1st to the 10th dielectric layer S1-S10, they according to this order from stacked on top.Each layer of first to the tenth layer of S1-S10 is made of one or more layers.
In antenna assembly 10A shown in Figure 2, (the first and second resonance electrode 34a 34b) are formed on the first type surface of the 7th dielectric layer S7 with parallel way two resonance electrodes.Each first and second resonance electrode 34a, the end of 34b is opened a way, and the other end is by grounding electrode 38 short circuits.
The first I/O electrode 28 is formed on the first type surface of the 6th dielectric layer S6.The first I/O electrode 28 has an end that links to each other with I/O end 36, and with the first resonance electrode 34a capacitive coupling.The second I/O electrode 30 is formed on the first type surface of the 6th dielectric layer S6, and also has the capacity coupled end with the second resonance electrode 34b.
Two internal layer grounding electrode 42a, 42b is formed on the first type surface of the 5th dielectric layer S5.Two internal layer grounding electrode 42a, 42b and two resonance electrode 34a, the open end of 34b is inserted with dielectric layer therebetween toward each other.
Internal layer grounding electrode 44 be formed on the first type surface of the 3rd dielectric layer S3 with filter 26 corresponding part places, and link to each other with the grounding electrode 38 that is provided with on the outer surface.
Coupling is adjusted electrode 46 and is formed on the first type surface of the 8th dielectric layer S8.
Coupling is adjusted electrode 46 and is had the first main electrode body 46a, the second main electrode body 46b, and introduce electrode 46c.The first main electrode body 46a is positioned at the below of the first resonance electrode 34a.The second main electrode body 46b is positioned at the below of the second resonance electrode 34b.The first main electrode body 46a is electrically connected with the second main electrode body 46b by the introducing electrode 46c that is formed between the first main electrode body and the second main electrode body.
Internal layer grounding electrode 48a, 48b is formed on the first type surface of the 9th dielectric layer S9.Internal layer grounding electrode 48a, 48b respectively with two resonance electrode 34a, the open end of 34b is relative, is inserted with dielectric layer therebetween.
The electrical connection of each electrode of antenna assembly 10A is described below with reference to equivalent circuit diagram shown in Figure 4.
Based on the first and second resonance electrode 34a, two resonator 24A of 34b, 24B is connected in parallel between I/O end 36 and the earth potential.In addition, the resonator 24A of adjacency, the 24B coupling that interacts.Thereby in equivalent electric circuit, inductance L is inserted into the resonator 24A of adjacency, between the 24B.
In addition, adjust electrode 46 by coupling and between the first resonance electrode 34a and the second resonance electrode 34b, form combination capacitor C.In this structure, the LC antiresonant circuit that forms by means of inductance L and combination capacitor C is connected corresponding resonator 24A, between the 24B.
Respectively at the first and second resonance electrode 34a, (42b forms electric capacity (combination capacitor) C1, C2 between 48b) for 42a, 48a for each open end of 34b and corresponding internal layer grounding electrode.Between the first resonance electrode 34a and I/O end 36, form capacitor C 3 by means of the first I/O electrode 28.
Between the second I/O electrode 30 and the second resonance electrode 34b, form capacitor C 4.Between the second I/O electrode 30 and antenna element 22, form capacitor C 5 by means of electrode 52.In other words, in the antenna assembly 10A according to first embodiment, filter 26 and antenna element 22 intercouple by the combination capacitor of capacitor C 4 and capacitor C 5.
In antenna assembly 10A, capacitor C 5 has such value, that is, make the antenna pattern 20 of antenna element 22 as the resonator 24C of filter 26.
Usually, about the reflection characteristic of filter 26, as shown in Figure 5, the several decay peak value appears, first, second resonator 24A of its quantity and filter 26, and the quantity of 24B is suitable, two damping peak P1 and P2 promptly occur.
But, in first embodiment, the power unit of antenna element 22 32 is by capacitor C 5 and filter 26 couplings, and capacitor C 5 has such value, that is, make antenna pattern 20 as resonator 24C.Thereby as shown in Figure 4, in antenna assembly 10A, based on the radiation resistance R resonator 24C of the antenna pattern 20 first and second resonator 24A with new form and filter 26,24B is connected in parallel.
In other words, in this structure, based on the resonator 24C of antenna pattern 20 and second resonator 24B capacitive coupling each other.Thereby, about reflection characteristic, as shown in Figure 6 according to the antenna assembly 10A of first embodiment, remove the resonator 24A of quantity and filter 26, the corresponding damping peak P1 of the quantity of 24B outside the P2, the corresponding damping peak P3 of quantity with antenna pattern 20 also occurs.Thereby frequency band has been broadened.
As mentioned above, in antenna assembly 10A, can realize the wide bandwidth of antenna assembly 10A, and not strengthen the shape of antenna pattern 20.In addition, can help to realize to use the miniaturization of electronic installation and the communicator of this antenna assembly 10A.
In addition, just can make antenna assembly 10A realize wide bandwidth because need not enlarge the shape of antenna pattern 20, so can design various difform antenna patterns 20.
Below, with reference to the antenna assembly 10B of Fig. 7 and Fig. 8 explanation according to the second embodiment of the present invention.Represent with identical Reference numeral with corresponding element of antenna assembly 10A or parts among the figure, and omit the explanation that wherein repeats.
As shown in Figure 7, antenna assembly 10B almost is configured in the mode identical with above-mentioned antenna assembly 10A.But, the element of the antenna assembly 10B between the power unit 32 that is set at antenna element 22 and the second resonator 24B or parts have following different.
Between the power unit 32 resonator 24B of antenna element 22, have connection electrode 60 and through hole 62.For example, connection electrode 60 has tortuous shape and links to each other with the second resonator 24B, thereby is configured to inductance L c (see figure 8).The power unit 32 of the end of through hole 62 and connection electrode 60 and antenna element 22 is electrically connected.
As shown in Figure 8, inductance L c is connected between the second resonator 24B and the antenna element 22 by connection electrode 60.In other words, in antenna assembly 10B, filter 26 is by inductance L c and antenna element 22 conduction couplings.
In antenna assembly 10B, inductance L c has such value, that is, make the antenna pattern of antenna element 22 as the resonator 24C of filter 26.Therefore, about the reflection characteristic of antenna assembly 10B, remove with the quantity of the mode damping peak identical with said antenna device 10A and the resonator 24A of filter 26, outside the quantity of 24B was corresponding, the quantity of the quantity of damping peak and antenna pattern 20 was corresponding.Thereby frequency band has been broadened.
As mentioned above, in antenna assembly 10B, the shape that does not enlarge antenna pattern 20 just can realize the antenna assembly 10B in broadband.In addition, can help to use electronic installation and the communicator miniaturization of antenna assembly 10B.
In the above-described embodiment, form inductance L c by the electrode 60 that is connected to form on the 7th dielectric layer S7.Perhaps, inductance L c also can form by through hole 62.
In the above-described embodiment, and two resonators of use filter cell 26 ( resonator 24A, 24B).Perhaps, also can use one or three or a plurality of resonator.
In the above-described embodiment, on the upper surface of dielectric substrate 12, form antenna pattern 20.In addition, antenna pattern 20 can form in the inside of dielectric substrate 12.In this structure, for example, in antenna assembly 10B, antenna pattern 20 can be formed on the first type surface of the 7th dielectric layer S7, and antenna pattern 20 and connection electrode 60 can be directly connected to each other.
Certainly, be not limited to the above embodiments according to antenna assembly of the present invention, do not break away under the situation of design of the present invention or essential characteristic, the present invention can implement with other different form.
Claims (4)
1. antenna assembly, it comprises:
Antenna element (22), it has one or more antenna patterns (20) that are formed on the dielectric substrate (12), and an end of described antenna element (22) is as power unit (32), and the other end of described antenna element (22) is as open end (20a); And
Be formed on a plurality of resonators on the described dielectric substrate (12) (24A, 24B), described antenna element (22) and described resonator (24A 24B) integrally forms,
Wherein, the described power unit (32) of described antenna element (22) is by the coupling of the resonator (24B) in electric capacity (C5) and the described resonator, and the value of described electric capacity (C5) is specified to is convenient to be configured to filter, one or more damping peaks appear in this filter, the quantity of described damping peak is corresponding to removing resonator (24A, the quantity of the described one or more antenna patterns (20) outside quantity 24B).
2. antenna assembly as claimed in claim 1, it is characterized in that, the resonator (24B) of one through hole (50) from described resonator extends towards the position of the described power unit (32) of close described antenna element (22), and an electrode (52) is formed on an end place of described through hole (50), and forms electric capacity (C5) between the described power unit (32) of described electrode (52) and described antenna element (22).
3. antenna assembly, it comprises:
Antenna element (22), it has one or more antenna patterns (20) that are formed on the dielectric substrate (12), and an end of described antenna element (22) is as power unit (32), and the other end of described antenna element (22) is as open end (20a); And
Be formed on a plurality of resonators on the described dielectric substrate (12) (24A, 24B), described antenna element (22) and described resonator (24A 24B) integrally forms,
Wherein, the described power unit (32) of described antenna element (22) is by the coupling of the resonator (24B) in inductance (Lc) and the described resonator, and the value of described inductance (Lc) is specified to, so that described one or more antenna patterns (20) of described antenna element (22) are configured to filter with described resonator.
4. antenna assembly as claimed in claim 3 is characterized in that, it also comprises the connection electrode (60) that a described resonator (24B) from described resonator extends, forming described inductance (Lc),
Wherein, a through hole (62) makes an end of described connection electrode (60) be electrically connected with the described power unit (32) of described antenna element (22).
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP396574/2001 | 2001-12-27 | ||
| JP2001396574 | 2001-12-27 | ||
| JP396574/01 | 2001-12-27 | ||
| JP2002372746A JP2003258547A (en) | 2001-12-27 | 2002-12-24 | Antenna system |
| JP372746/02 | 2002-12-24 | ||
| JP372746/2002 | 2002-12-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1433105A CN1433105A (en) | 2003-07-30 |
| CN1249852C true CN1249852C (en) | 2006-04-05 |
Family
ID=27667386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02159802 Expired - Fee Related CN1249852C (en) | 2001-12-27 | 2002-12-27 | Antenna unit |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2003258547A (en) |
| CN (1) | CN1249852C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006319629A (en) * | 2005-05-12 | 2006-11-24 | Tyco Electronics Amp Kk | Flat antenna |
| JP4959220B2 (en) * | 2006-05-10 | 2012-06-20 | 富士通コンポーネント株式会社 | Planar antenna device |
| TWI484698B (en) | 2011-08-29 | 2015-05-11 | Univ Nat Chiao Tung | Printed filtering antenna |
| CN106469847B (en) * | 2015-08-18 | 2019-05-28 | 博通集成电路（上海）股份有限公司 | Antenna and the method for forming antenna |
| JP7282570B2 (en) * | 2019-03-29 | 2023-05-29 | ラピスセミコンダクタ株式会社 | Antennas and semiconductor devices |
| CN114389055B (en) * | 2022-01-18 | 2024-07-05 | 安徽安努奇科技有限公司 | Antenna assembly and communication system |
| CN116722363B (en) * | 2023-08-10 | 2023-10-20 | 成都天成电科科技有限公司 | Composite structure broadband phased array antenna unit and antenna |
-
2002
- 2002-12-24 JP JP2002372746A patent/JP2003258547A/en active Pending
- 2002-12-27 CN CN 02159802 patent/CN1249852C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1433105A (en) | 2003-07-30 |
| JP2003258547A (en) | 2003-09-12 |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060405 Termination date: 20191227 |