CN203351753U - Antenna radiation unit - Google Patents
Antenna radiation unit Download PDFInfo
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- CN203351753U CN203351753U CN 201320317050 CN201320317050U CN203351753U CN 203351753 U CN203351753 U CN 203351753U CN 201320317050 CN201320317050 CN 201320317050 CN 201320317050 U CN201320317050 U CN 201320317050U CN 203351753 U CN203351753 U CN 203351753U
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- radiation unit
- unit
- support column
- lun
- coaxial cable
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Abstract
Disclosed is an antenna radiation unit. The unit is disposed on a metal reflection plate. The unit comprises two pairs of orthogonal polarization dipole radiation units. Each dipole radiation unit is disposed on the metal reflection plate through a balun. Each balun comprises two support columns that are parallelly and adjacently disposed. Each dipole radiation unit comprises two unit arms that are symmetrically respectively fixed with the two support columns. Each dipole radiation unit is provided with a coaxial cable disposed along the baluns. An external conductor of the coaxial cable is connected with one unit arm or the corresponding support column. The internal conductor of the coaxial cable is connected with the other unit arm or the corresponding support column. The coaxial cable is provided with one-section or multi-section external conductor removal areas. The unit is simple in structure, convenient to install, simple in feeding, good in consistency and easy to produce. The unit well overcomes a problem of impedance matching of broadband antenna units, and achieves best electric properties of antennae.
Description
Technical field
The utility model relates to communication field, is specifically related to a kind of antenna radiation unit.
Background technology
Along with the development of mobile communication technology, the aspects such as the Modern Communication System indices to Bipolarization antenna for base station, particularly gain, bandwidth characteristic, processing technology, proposed more and more higher requirement.
Existing dual polarized antenna unit mainly adopts following several implementation: the first adopts two concurrents, the staggered and dipole antenna oscillator structure of polarization orthogonal; The second, adopt micro-band radiating element, by coupling or the form of direct feed, realizes dual polarization; The third, adopt the sub-quadrature of two electrode couples to place, and forms the layout of squarish.
In network communicating system commonly used, the horizontal plane half-power beam width that antenna the most often uses is 65 degree.Above-mentioned the first scheme generally consists of conventional dipole or folded dipole, by this form, can obtain very wide frequency bandwidth; But the horizontal beam of antenna oscillator changes greatly with the difference of frequency, and the gain of antenna oscillator is relatively low.And, in first scheme, micro-bandwidth with radiating element is narrower, the isolation of two-port is poor, and the oscillator gain is not high, and the assembling trouble, is difficult to realize extensive use.
Comparatively speaking, adopt the radiating element overall performance of the third square layout better, and can realize by nested mode the antenna for base station of two kinds of frequency ranges, therefore obtain more attention.But still there are many deficiencies in this design.The Chinese utility model patent application that for example application number is 201010256784.6, disclose a kind of Antenna Design scheme, and the dual polarization antenna radiation unit in this scheme is become by two electrode couple subgroups, by feed tab to the antenna radiation unit feed that is coupled.This scheme can realize the wide band impedance matching in unit preferably, but its element comprised is various, complex structure; If produce in enormous quantities, the consistency of oscillator unit is difficult to control.Its mode electrode couple by the coupling feed carries out feed, easily causes the radiation arm both sides cable imbalance of single dipole, affects the most at last the element pattern of whole dual polarization antenna radiation.
The utility model content
The purpose of this utility model is, for the deficiencies in the prior art, provides a kind of antenna radiation unit, and it is simple in structure, easy for installation, and feed is simple, and high conformity is easy to produce; And can fine solution wide-frequency band antenna unit resistance matching problem, realize the optimization of antenna electrical performance.
For achieving the above object, the utility model is by the following technical solutions:
A kind of antenna radiation unit, be installed on the metallic reflection plate, comprises the dipole radiation unit that two pairs of polarization orthogonal arrange, and each dipole radiation unit is installed on the metallic reflection plate by a Ba Lun respectively; Each Ba Lun comprises two support columns of parallel adjacent setting, and each dipole radiation unit comprises two unit arms that are individually fixed in symmetrically on two support columns; In each dipole radiation unit, there is a coaxial cable arranged along Ba Lun, the outer conductor of described coaxial cable and one of them unit arm or corresponding support column connect, the inner wire of coaxial cable and another unit arm or corresponding support column connect, and have a joint or more piece outer conductor cut-away area on described coaxial cable.
Outer conductor cut-away area on described coaxial cable, only leave inner wire and medium or only leave inner wire.
The junction of each dipole radiation unit and Ba Lun is positioned at same reference planes; One end of unit arm is fixedly connected on support column, and the other end has the plate-like piece perpendicular to described reference planes, and the projection of arm on reference planes of all unit surrounds centrosymmetric polygon or a circle.
The other end of unit arm has tabular of taper or polygon, and the middle part of plate-like piece has a hollow region.
The bottom of all Ba Lun is fixedly connected on a base, and by floor installation on the metallic reflection plate.
The top of each Ba Lun also is provided with the feed joint pin, and an end of described feed joint pin is fixedly connected on a wherein support column top, and the other end extends to another support column, and near unsettled being located at another support column top; The outer surface of support column offers groove along bearing of trend; In each Ba Lun, the inner wire of described coaxial cable is connected with the feed joint pin, and the length extension of coaxial cable is arranged in the groove of another support column, and outer conductor is connected with the groove of another support column.
The mutually orthogonal combination of the sub-radiating element of described two electrode couple, form the polarised direction that +/-45 is spent.
The sub-radiating element of every electrode couple distributes about the Central Symmetry of reference planes; Two Ba Lun that connect a pair of dipole radiation unit also distribute about the Central Symmetry of reference planes.
The Ba Lun length that each dipole radiation unit connects is 0.2～0.3 operation wavelength.
The integrated die cast of described antenna radiation unit.
A kind of antenna radiation unit that the utility model provides, compare with the existing antenna directly formed with single characteristic impedance coaxial feeding radiating element, can simply effectively be mated antenna impedance, increase easily the beamwidth of antenna, reduce the antenna complex degree, reduce the antenna cost.It is simple in structure, easy for installation, and feed is simple, and high conformity is easy to produce; And can fine solution wide-frequency band antenna unit resistance matching problem, realize the optimization of antenna electrical performance; Be specially adapted to the mobile communication system of the 600～1000MHz such as GSM800, GSM900, CDMA800, LTE700.
The accompanying drawing explanation
The use view that Fig. 1 is the utility model embodiment mono-.
The structural representation that Fig. 2 is the utility model embodiment mono-.
The polycrystalline substance schematic diagram that Fig. 3 is the utility model embodiment mono-.
The structural representation that Fig. 4 is the utility model embodiment bis-.
The structural representation that Fig. 5 is the utility model embodiment tri-.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the technical solution of the utility model is elaborated.
Embodiment mono-
As shown in Figure 1, a kind of antenna radiation unit 11 that the utility model embodiment provides, for being arranged on metallic reflection plate 10, form antenna of mobile communication base station.Wherein, described antenna radiation unit 11 comprises the dipole radiation unit that two pairs of polarization orthogonal arrange, and each dipole radiation unit is installed on metallic reflection plate 10 by a Ba Lun (balance-nonbalance converter) respectively.Each dipole radiation unit comprises respectively again two unit arms that are fixed in symmetrically Ba Lunshang.Wherein, each Ba Lun comprises two support columns of parallel adjacent setting, and two unit arms in each dipole radiation unit are individually fixed on two support columns symmetrically.
Particularly, in the utility model embodiment, first module arm 1a and second unit arm 1b are fixed on the first Ba Lun 1, the 3rd unit arm 2a and the 4th unit arm 2b are fixed on the second Ba Lun 2, the 5th unit arm 3a and the 6th unit arm 3b are fixed on the 3rd Ba Lun 3, and the 7th unit arm 4a and the 8th unit arm 4b are fixed on the 4th Ba Lun 4.Wherein, first module arm 1a and second unit arm 1b form the first dipole radiation unit, the 3rd unit arm 2a and the 4th unit arm 2b form the second dipole radiation unit, the 5th unit arm 3a and the 6th unit arm 3b form the 3rd dipole radiation unit, and the 7th unit arm 4a and the 8th unit arm 4b form the 4th dipole radiation unit.The first dipole radiation unit and a pair of dipole radiation of the 3rd dipole radiation cell formation unit, the second dipole radiation unit occasionally becomes the sub-radiating element of another electrode couple with the 4th dipole radiation unit; The sub-radiating element of two electrode couples is the polarization orthogonal setting, is combined to form the polarised direction of +/-45 degree.
Further, as shown in Figure 2, the junction of each dipole radiation unit and Ba Lun is positioned at same reference planes, and first to fourth dipole radiation unit is connected to the sustained height position of first to fourth Ba Lun.Particularly, an end of unit arm is fixedly connected on Ba Lunshang, and the other end of unit arm has perpendicular to tabular of the taper of described reference planes or polygon; Two unit arms that are connected on same Ba Lun form an angle and shape, make the projection of arm on reference planes of all unit surround centrosymmetric polygon or a circle.
Accordingly, the utility model embodiment integral body structure that is centrosymmetric, the sub-radiating element of every electrode couple distributes about the Central Symmetry of reference planes; Two Ba Lun that connect a pair of dipole radiation unit also distribute about the Central Symmetry of reference planes.The first dipole radiation unit and the 3rd dipole radiation unit, the second dipole radiation unit and the 4th dipole radiation unit, the first Ba Lun 1 and the 3rd Ba Lun 3, the second Ba Lun 2 and the 4th Ba Lun 4 distribute about the Central Symmetry of reference planes respectively.
Due to the utility model embodiment structure that is centrosymmetric, at this, choose the first dipole radiation unit and the first Ba Lun 1 is specifically described for example.The first Ba Lun 1 comprises the first support column 111 and the second support column 112, the end of the end of first module arm 1a and second unit arm 1b is fixedly connected on respectively the top of the first support column 111 and the second support column 112, the other end of the other end of first module arm 1a and second unit arm 1b is respectively tabular an of polygon, wherein, the center of plate-like piece has a hollow region of being emptied, the profile of described hollow region is parallel with the outline of plate-like piece, makes plate-like piece become a polygon framework.First module arm 1a and second unit arm 1b be about the first Ba Lun 1 symmetry, and form the angle of 90 ° between the two.The second structure to the 3rd dipole radiation unit is identical with the first dipole radiation unit, and again because the sub-radiating element of two electrode couples is the polarization orthogonal setting, therefore, the shape that the first to the 8th projection of unit arm on reference planes surrounds roughly is square.
First to fourth Ba Lun's in the utility model embodiment is equal in length, is 0.2～0.3 operation wavelength.The bottom of first to fourth Ba Lun is fixedly connected on same cup dolly 9, and then is fixedly installed on metallic reflection plate 10 by this base 9.
Further, in each dipole radiation unit, there is a coaxial cable arranged along Ba Lun, the outer conductor of described coaxial cable and one of them unit arm or corresponding support column connect, the inner wire of coaxial cable and another unit arm or corresponding support column connect, and have a joint or more piece outer conductor cut-away area on described coaxial cable.Outer conductor cut-away area on described coaxial cable, only leave inner wire and medium or only leave inner wire.The top of each Ba Lun is provided with the feed joint pin, and an end of described feed joint pin is fixedly connected on the wherein support column top of Ba Lun, and the other end extends to another support column, and near unsettled being located at another support column top; The outer surface of support column offers groove along bearing of trend.In each Ba Lun, the inner wire of described coaxial cable is connected with the feed joint pin, and the length extension of coaxial cable is arranged in the groove of another support column, and outer conductor is connected with the groove of another support column.
Particularly, as shown in Figures 2 and 3, L-shaped the first feed joint pin 8, the second feed joint pin 5, the 3rd feed joint pin 6 and the 4th feed joint pin 7 are set up respectively in the top of first to fourth Ba Lun.Because the structure of first to fourth Ba Lun is identical, take the first Ba Lun at this and describe as example.One end of described the first feed joint pin 8 is fixedly connected on the second support column 112 tops, and the other end extends to the first support column 111, and near unsettled being located at the first support column 111 tops.The outer surface of the first support column 111 and the second support column 112 offers groove along bearing of trend, for laying coaxial cable 12.In the utility model embodiment, select the coaxial cable 12 that characteristic impedance is Z1.The inner wire 120 that is arranged at the coaxial cable 12 on the first Ba Lun 1 is connected on the first feed joint pin 8; The length extension of coaxial cable 12 is arranged in the groove of the first support column 111, and its outer conductor 122 closely is connected with the groove of the first support column 111.Coaxial cable 12 has more piece outer conductor cut-away area 121, and the medium in described outer conductor cut-away area 121 is also cut, only retains inner wire 120.Therefore, the Metal Phase of the groove of described outer conductor cut-away area 121 and the first support column 111 coupling, the transmission line that the Formation and characteristics impedance is Z2.Joint number by adjusting outer conductor cut-away area 121 and the length of every joint, can make transmission line that characteristic impedance is Z1 and Z2 be converted the cell impedance of antenna radiation unit, the impedance that final output mobile communication antenna for base station needs.
As improvement, the antenna radiation unit 11 of the utility model embodiment can integrated die casting moulding.
Embodiment bis-
As shown in Figure 4, a kind of distressed structure that the utility model embodiment is embodiment mono-.First to fourth Ba Lun in the utility model embodiment is not connected by a base, but is installed to separately on the metallic reflection plate respectively.
Other structures of the utility model embodiment are identical with embodiment mono-, do not repeat them here.
Embodiment tri-
As shown in Figure 5, a kind of distressed structure that the utility model embodiment is embodiment mono-.In each dipole radiation unit in the utility model embodiment, the angle that is fixedly connected on Liang unit, Ba Lun upper end arm is an obtuse angle, makes all unit projection of shape of arm on reference planes be a centrosymmetric polygon.It should be noted that, in conjunction with the embodiments one, each Zhong Liang unit, dipole radiation unit arm angle in the utility model can be various angles, the projection of unit arm on reference planes can be also curve, only needs the projection of final assurance all unit arm on reference planes to surround a centrosymmetric polygon or circular getting final product.
Especially, in the utility model embodiment, select the coaxial cable 12 that characteristic impedance is Z1.The inner wire 120 that is arranged at the coaxial cable 12 on the first Ba Lun 1 is connected on the first feed joint pin 8; The length extension of coaxial cable 12 is arranged in the groove of the first support column 111, and its outer conductor 122 closely is connected with the groove of the first support column 111.Coaxial cable 12 has more piece outer conductor cut-away area, and particularly, described outer conductor cut-away area comprises the first outer conductor cut-away area 124 and the second outer conductor cut-away area 123.Outer conductor 122 and medium in described the first outer conductor cut-away area 124 are all cut, in only remaining with, lead 120 bodies; In described the second outer conductor cut-away area 123, only have outer conductor 122 cut, medium and inner wire 120 are retained.Therefore, the Metal Phase of the groove of the first outer conductor cut-away area 124 and the first support column 111 coupling, the transmission line that the Formation and characteristics impedance is Z2; The Metal Phase coupling of the groove of the second outer conductor cut-away area 123 and the first support column 111, the transmission line that the Formation and characteristics impedance is Z3.Joint number by adjusting first, second outer conductor cut-away area and the length of every joint, can make transmission line that characteristic impedance is Z1, Z2 and Z3 be converted the cell impedance of antenna radiation unit, the impedance that final output mobile communication antenna for base station needs.
Other structures of the utility model embodiment are identical with embodiment mono-, do not repeat them here.
The utility model also provides a kind of method of using above-mentioned antenna radiation unit to carry out feed, and it specifically comprises the following steps:
Choose the coaxial cable with a characteristic impedance;
By the joint of one on coaxial cable or the excision of more piece outer conductor portion, the cut part of outer conductor only leaves inner wire and medium or only leaves inner wire;
The inner wire of coaxial cable one end is connected with the wherein support column of Ba Lun, the length extension of coaxial cable is arranged along another support column, and outer conductor is close on another support column;
By adjusting length and the joint number of the outer conductor cut-out on coaxial cable, and the outer conductor cut-out leaves the situation of medium, meets different impedance transformation demands.
A kind of antenna radiation unit that the utility model provides, compare with the existing antenna directly formed with single characteristic impedance coaxial feeding radiating element, can simply effectively be mated antenna impedance, increase easily the beamwidth of antenna, reduce the antenna complex degree, reduce the antenna cost.It is simple in structure, easy for installation, and feed is simple, and high conformity is easy to produce; And can fine solution wide-frequency band antenna unit resistance matching problem, realize the optimization of antenna electrical performance; Be specially adapted to the mobile communication system of the 600～1000MHz such as GSM800, GSM900, CDMA800, LTE700.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (10)
1. an antenna radiation unit, be installed on the metallic reflection plate, it is characterized in that, comprises the dipole radiation unit that two pairs of polarization orthogonal arrange, and each dipole radiation unit is installed on the metallic reflection plate by a Ba Lun respectively; Each Ba Lun comprises two support columns of parallel adjacent setting, and each dipole radiation unit comprises two unit arms that are individually fixed in symmetrically on two support columns; In each dipole radiation unit, there is a coaxial cable arranged along Ba Lun, the outer conductor of described coaxial cable and one of them unit arm or corresponding support column connect, the inner wire of coaxial cable and another unit arm or corresponding support column connect, and have a joint or more piece outer conductor cut-away area on described coaxial cable.
2. antenna radiation unit according to claim 1, is characterized in that, the outer conductor cut-away area on described coaxial cable only leaves inner wire and medium or only leaves inner wire.
3. antenna radiation unit according to claim 1, is characterized in that, the junction of each dipole radiation unit and Ba Lun is positioned at same reference planes; One end of unit arm is fixedly connected on support column, and the other end has the plate-like piece perpendicular to described reference planes, and the projection of arm on reference planes of all unit surrounds centrosymmetric polygon or a circle.
4. antenna radiation unit according to claim 3, is characterized in that, the other end of unit arm has tabular of taper or polygon, and the middle part of plate-like piece has a hollow region.
5. antenna radiation unit according to claim 1, is characterized in that, the bottom of all Ba Lun is fixedly connected on a base, and by floor installation on the metallic reflection plate.
6. antenna radiation unit according to claim 1, it is characterized in that, the top of each Ba Lun also is provided with the feed joint pin, and an end of described feed joint pin is fixedly connected on a wherein support column top, the other end extends to another support column, and near unsettled being located at another support column top; The outer surface of support column offers groove along bearing of trend; In each Ba Lun, the inner wire of described coaxial cable is connected with the feed joint pin, and the length extension of coaxial cable is arranged in the groove of another support column, and outer conductor is connected with the groove of another support column.
7. antenna radiation unit according to claim 1, is characterized in that, the mutually orthogonal combination of the sub-radiating element of described two electrode couple forms the polarised direction that +/-45 is spent.
8. antenna radiation unit according to claim 1, is characterized in that, the sub-radiating element of every electrode couple distributes about the Central Symmetry of reference planes; Two Ba Lun that connect a pair of dipole radiation unit also distribute about the Central Symmetry of reference planes.
9. antenna radiation unit according to claim 1, is characterized in that, the Ba Lun length that each dipole radiation unit connects is 0.2～0.3 operation wavelength.
10. antenna radiation unit according to claim 1, is characterized in that, the integrated die cast of described antenna radiation unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320317050 CN203351753U (en) | 2013-06-03 | 2013-06-03 | Antenna radiation unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320317050 CN203351753U (en) | 2013-06-03 | 2013-06-03 | Antenna radiation unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203351753U true CN203351753U (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320317050 Expired - Lifetime CN203351753U (en) | 2013-06-03 | 2013-06-03 | Antenna radiation unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN203351753U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337712A (en) * | 2013-06-03 | 2013-10-02 | 广东博纬通信科技有限公司 | An antenna radiation unit and an electricity feeding method |
| CN110416704A (en) * | 2018-04-26 | 2019-11-05 | 罗森伯格技术（昆山）有限公司 | A kind of antenna radiation unit and wide frequency antenna |
-
2013
- 2013-06-03 CN CN 201320317050 patent/CN203351753U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337712A (en) * | 2013-06-03 | 2013-10-02 | 广东博纬通信科技有限公司 | An antenna radiation unit and an electricity feeding method |
| CN103337712B (en) * | 2013-06-03 | 2015-08-05 | 广东博纬通信科技有限公司 | A kind of antenna radiation unit and feed method thereof |
| CN110416704A (en) * | 2018-04-26 | 2019-11-05 | 罗森伯格技术（昆山）有限公司 | A kind of antenna radiation unit and wide frequency antenna |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |
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| CX01 | Expiry of patent term |