CN101707292A - Broadband dual polarized antenna - Google Patents
Broadband dual polarized antenna Download PDFInfo
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- CN101707292A CN101707292A CN200910039398A CN200910039398A CN101707292A CN 101707292 A CN101707292 A CN 101707292A CN 200910039398 A CN200910039398 A CN 200910039398A CN 200910039398 A CN200910039398 A CN 200910039398A CN 101707292 A CN101707292 A CN 101707292A
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Abstract
The invention discloses an integrated broadband dual polarized antenna, which comprises a radiator and a balanced feeding device, wherein the balanced feeding device is simultaneously formed into a supporting arm of an antenna oscillator; the radiator is a symmetric radiation array consisting of four radiation units; each radiation unit consists of two branches which are bilaterally symmetric and each branch is provided with hollow holes so as to form parallel current paths; the tail ends of the two branches are connected through a connecting arm so that the left and right branches of each radiation unit form a closed electromagnetic loop; the balanced feeding device comprises two pairs of U-shaped baluns which are mutually orthogonal and of which bottoms are connected; four supporting planes are formed at the top part of the balanced feeding device and are supported at the connecting parts of the radiation units respectively; and the balanced feeding device is integrated with the radiator. The integrated broadband dual polarized antenna is simple in structure, convenient in mounting, easy in feeding, good in consistency and easy to produce, and has the advantages of small horizontal wave beam width fluctuating with frequency, good cross polarization characteristic, high gain and high front-to-back ratio.
Description
[technical field]
The present invention relates to the antenna of mobile communication base station field, particularly a kind of broadband dual polarized antenna.
[technical background]
Along with the development of mobile communication technology, the index request of Bipolarization antenna for base station, particularly bandwidth characteristic, half-power angle with aspects such as the wave characteristic of frequency, cross polarization characteristics, more and more higher requirement have been proposed.Antenna for base station generally is combined into array format by identic radiating element, to obtain high gain, so the index of dual polarized antenna array element will directly have influence on the performance of entire antenna.At present, dual polarized antenna array element mainly adopts following two kinds of ways of realization:
1, adopt antenna oscillator structure two pairs of concurrents, staggered and polarization orthogonal;
2, make up in twos by four single-polarized antenna oscillators of concurrent not, realize dual polarization.
Above-mentioned first kind of scheme generally is made of the dipole or the folded dipole of routine, and the horizontal beam width of antenna oscillator changes greatly with the difference of frequency, and the gain of antenna oscillator is relatively low, and cross polarization is generally not good.Second kind of scheme then needs four distributing points, causes current imbalance between antenna easily, and assembling trouble, and consistency is poor, and the cross polarization of this combined elements deviation still, so seldom use at 2GHz or above frequency range.
Extensive use at present be first kind of scheme, as China Patent No. is ZL 200620145421.4, ZL200720170443.0, ZL 200720170876.6 and ZL03208478.1 document, a kind of balanced feeding that passes through has all been described, thereby the balance that improves the oscillator radiation space improves the oscillator of cross polarization characteristics, but above-mentioned design is generally split-type design, many, the complex structure of building block is difficult to realize incorporate design, and the large-scale production reliability is relatively poor.It is a kind of simple in structure that China's application number has been 200710188585.4 document description, the band dual polarization oscillator unit that cost is low, this oscillator unit directly is processed into half-wave dipole by aluminium, again by the strip line feed, each oscillator fixedly is made up of by the location hole on the reflecting plate four independent radiation arms, to cause the location consistency of oscillator poor so easily, and bring harmful effect for follow-up various reliability testings.The integrated higher broadband dualpolarization radiation unit disclosed in China Patent No.: ZL 200320119738.7, it has simple and compact for structure, be easy to make, cost is low and assemble easy for installation, but the gain of this broadband dualpolarization radiation unit is low, and beamwidth is big with the fluctuation of frequency change.
The present invention endeavours to improve above-mentioned deficiency, and a kind of wideband dual polarized oscillator of integrated design is provided, and it is simple in structure, and is easy for installation, easy feed, and high conformity is easy to produce; And have that the fluctuation of good cross polarization characteristics, horizontal plane beamwidth is little, high-gain and high before and after advantage such as compare.
[summary of the invention]
The objective of the invention is to improve the deficiency of prior art, provide a kind of integrated design, cost is low, especially half-power angle is little with frequency change, the broadband dual polarized antenna oscillator that cross polarization is good.
The object of the present invention is achieved like this:
A kind of broadband dual polarized antenna, comprise radiant body and balance feeder equipment, the balanced feeding device constitutes the support arm of radiant body simultaneously, the balanced feeding device is the excitation radiation body to the radiant body feed, the symmetrical radiating curtain that described radiant body is made up of four radiating elements, each radiating element is made up of symmetrical two branches, all be provided with hollow hole in each branch, thereby form current path in parallel, the end of two branches links to each other by linking arm, make each radiating element about two branches form closed electromagnetic circuit, the right-hand branch of the left-hand branch of each radiating element and adjacent radiation unit is connected at the support arm place, constitute four and concentrate near the connecting portion of radiating curtain central point, the balanced feeding device is two couples of U type Ba Lun mutually orthogonal and bottom links to each other, four support arms are formed at its top, and the connecting portion and the radiant body that are connected to radiating element form integral structure.
In described four radiating element connecting portions, two wherein adjacent connecting portion upper surfaces are provided with projection, and two other connecting portion is provided with the through hole that passes through for feeder cable.
Be provided with feed tab between the through hole on projection on the described connecting portion and its diagonal angle end, feed tab one end is connected on the projection, be provided with insulating trip between the other end and the connecting portion, perforate on the insulating trip, position of opening overlaps with lead to the hole site on the connecting portion, feeder cable is a coaxial cable, through hole and the perforate on the insulating trip that its heart yearn passes on the connecting portion are connected on the feed tab, radiating element by feed tab and diagonal angle end forms current path, the outer contact of feeder cable is connected in the through hole of connecting portion, forms by insulating trip and feed tab and opens circuit, and feed tab has two, form intersect cross, infall does not link to each other.
Described radiation arm left and right sides branch is near the projection that is respectively equipped with downward protrusion on the bottom surface of symmetry axis.
Described radiation arm left and right sides branch is respectively equipped with projection protruding upward near on the surface of symmetry axis.
The integrated die cast of integral structure that described balanced feeding device and radiant body form.
The connected mode of described projection and feed tab is welding.
The connected mode of described cable core and feed tab is welding.
The connected mode of described cable outer layer conductor and connecting portion through hole is welding.
Described linking arm thickness is less than the thickness of radiating element.
Its beneficial effect is: the horizontal beam width that the present invention has overcome antenna oscillator in the existing broadband dual polarized antenna technology changes greatly with the difference of frequency, the gain of antenna oscillator is relatively low, and cross polarization is generally not good, current imbalance between antenna, and assembling trouble, defectives such as consistency difference provide a kind of wideband dual polarized oscillator of integrated design, and it is simple in structure, easy for installation, easy feed, high conformity is easy to produce; And have that the fluctuation of good cross polarization characteristics, horizontal plane beamwidth is little, high-gain and high before and after advantage such as compare.
[description of drawings]
Fig. 1 is the structural representation that the present invention does not install feed tab;
Fig. 2 is the structural representation after the present invention loads onto feed tab;
Fig. 3 is the structural representation of the present invention bottom;
Fig. 4 is the structural representation after the present invention connects feeder cable;
Fig. 5 is the structural representation that feed tab of the present invention is installed;
Fig. 6 is the structural representation of radiating element of the present invention;
Fig. 7 is the structural representation of adjacent radiation of the present invention unit connected mode.
Fig. 8 is standing wave and the isolation schematic diagram that the present invention surveys
Fig. 9 is the directional diagram and the gain schematic diagram of emulation of the present invention
[embodiment]
As shown in drawings, the symmetrical radiating curtain that radiant body of the present invention is made up of four radiating elements 1, each radiating element 1 is made up of symmetrical two branches, all being provided with hollow hole 6 in each branch, thereby forming current path in parallel. left branch 14 and right branch 15 are by linking arm 16 link to each other (as Fig. 6).
The left branch 14 of each radiating element 1 is connected with the right branch 15 of adjacent radiation unit, constitute four and concentrate near the connecting portion 17 (as Fig. 7) of radiation arm array center's point, two wherein adjacent connecting portion upper surfaces are provided with projection 3, and two other connecting portion is provided with the through hole 7 that passes through for feeder cable.Be provided with feed tab 2 between the through hole 7 on projection 3 and its diagonal angle end, feed tab 2 one ends are connected on the projection 3, be provided with insulating trip 5 between the other end and the connecting portion, insulating trip is provided with perforate, position of opening overlaps with through hole 7 positions on the connecting portion, also be arranged with insulating trip (as Fig. 5) on the projection 3, to guarantee that feed current enters radiating element by projection 3, feeder cable is a coaxial cable, through hole 7 and the perforate on the insulating trip 5 that its heart yearn 4 passes on the connecting portion 17 are connected on the feed tab 2, by the radiating element 1 formation current path of feed tab 2 with the diagonal angle end, the outer contact of feeder cable is connected (not shown) in the through hole of connecting portion, forms with feed tab 2 by insulating trip 5 and opens circuit, and feed tab 2 has two, form intersect cross, infall does not link to each other.
Electric current in the coaxial cable core wire 4 is delivered on the radiating element 1 by feed tab 2, form the electromagnetic circuit of a-b-c-c '-b '-a '-a, make radiation area concentrate on the periphery of radiating element 1, and the radiation polarization angle is respectively 0 degree or 90 degree, by the vector superposed and negative function between the radiating element 1, obtained+/-45 dual polarised radiation of spending.This special irradiation structure has good cross polarization characteristics, and the fluctuation of horizontal plane beamwidth is little, and has good isolation index.In order to realize incorporate design, and realize the feeding classification being convenient to produce on each radiation arm, being provided with two hollow holes 6, increase projection 8, and the thickness that reduces linking arm 16, make impedance bandwidth obtain very big improvement.Because radiating element is the integrated design, and has strengthened the mechanical resistance pinking of antenna integral body and the consistency of production simultaneously.
The projection 3 of present embodiment and feed tab 2; cable core 4 and feed tab 2; the connected mode of cable outer layer conductor and connecting portion through hole 7 is welding, but is not limited to this kind connected mode, and the connected mode that can form current path in every case all drops among protection scope of the present invention.
The support arm 11 of present embodiment constitutes the balanced feeding device simultaneously, be two couples of U type Ba Lun mutually orthogonal and bottom links to each other, four supporting surfaces are formed on its top, be supported on the connecting portion 17 of radiating element 1 respectively, form integral structure with radiant body, whole radiant body and balance feeder equipment connect into an integral body by the bottom of U type Ba Lun.The junction, bottom of U type Ba Lun forms a plane 13, and plane 13 is fitted on the reflecting plate 10, also is provided with reference column 12 on the plane 13, and reference column 12 is positioned at (not shown) in the location hole on the reflecting plate 10, realizing accurate location, and position malleable not.
Fig. 8 is the present invention's standing wave of surveying and isolates schematic diagram, as seen based on oscillator of the present invention unit in 1710～2170MHz frequency range, standing wave is all less than 1.4, isolation then is better than 30dB.Fig. 9 is based on oscillator of the present invention unit emulation horizontal radiation pattern, and as can be seen from the figure the present invention is in 1710～2170MHz, and 65 spend the fluctuations of 2 degree of only having an appointment under the half-power angles, are much better than the standards less than 12 degree of antenna for base station industry standard defined.
Should be noted that: the feeding classification of present embodiment radiant body is the direct feed mode, produces reliably, and the layout of feeding network is convenient, flexible.But be not limited to this kind feeding classification, also can change other feeding classification into,, only need suitably to regulate the size of radiant body and the reactance value size of coupling unit this moment as electromagnetic coupled etc.
Claims (10)
1. broadband dual polarized antenna, comprise radiant body and balance feeder equipment, the balanced feeding device constitutes the support arm of radiant body simultaneously, the balanced feeding device is the excitation radiation body to the radiant body feed, it is characterized in that: the symmetrical radiating curtain that described radiant body is made up of four radiating elements, each radiating element is made up of symmetrical two branches, all be provided with hollow hole in each branch, thereby form current path in parallel, the end of two branches links to each other by linking arm, make each radiating element about two branches form closed electromagnetic circuit, the right-hand branch of the left-hand branch of each radiating element and adjacent radiation unit is connected at the support arm place, constitute four and concentrate near the connecting portion of radiating curtain central point, the balanced feeding device is two couples of U type Ba Lun mutually orthogonal and bottom links to each other, four support arms are formed at its top, are connected to the connecting portion of radiating element, make balanced feeding device and radiant body form integral structure.
2. a kind of broadband dual polarized antenna according to claim 1 is characterized in that: in described four radiating element connecting portions, two wherein adjacent connecting portion upper surfaces are provided with projection, and two other connecting portion is provided with the through hole that passes through for feeder cable.
3. a kind of broadband dual polarized antenna according to claim 2, it is characterized in that: be provided with feed tab between the through hole on the projection on the described connecting portion and its diagonal angle end, feed tab one end is connected on the projection, be provided with insulating trip between the other end and the connecting portion, perforate on the insulating trip, position of opening overlaps with lead to the hole site on the connecting portion, feeder cable is a coaxial cable, through hole and the perforate on the insulating trip that its heart yearn passes on the connecting portion are connected on the feed tab, radiating element by feed tab and diagonal angle end forms current path, the outer contact of feeder cable is connected in the through hole of connecting portion, open circuit by insulating trip and feed tab formation, feed tab has two, forms intersect cross, and infall does not link to each other.
4. according to each described a kind of broadband dual polarized antenna of claim 1-3, it is characterized in that: described radiation arm left and right sides branch is near the projection that is respectively equipped with downward protrusion on the bottom surface of symmetry axis.
5. according to each described a kind of broadband dual polarized antenna of claim 1-3, it is characterized in that: described radiation arm left and right sides branch is respectively equipped with projection protruding upward near on the surface of symmetry axis.
6. according to each described a kind of broadband dual polarized antenna of claim 1-3, it is characterized in that: the integrated die cast of integral structure that described balanced feeding device and radiant body form.
7. a kind of broadband dual polarized antenna according to claim 4 is characterized in that: the connected mode of described projection and feed tab is welding.
8. a kind of broadband dual polarized antenna according to claim 4 is characterized in that: the connected mode of described cable core and feed tab is welding.
9. a kind of broadband dual polarized antenna according to claim 4 is characterized in that: the connected mode of described cable outer layer conductor and connecting portion through hole is welding.
10. according to each described a kind of broadband dual polarized antenna of claim 1-3, it is characterized in that: described linking arm thickness is less than the thickness of radiating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910039398.9A CN101707292B (en) | 2009-05-07 | 2009-05-07 | Broadband dual polarized antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910039398.9A CN101707292B (en) | 2009-05-07 | 2009-05-07 | Broadband dual polarized antenna |
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| CN101707292A true CN101707292A (en) | 2010-05-12 |
| CN101707292B CN101707292B (en) | 2014-02-12 |
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| CN200910039398.9A Active CN101707292B (en) | 2009-05-07 | 2009-05-07 | Broadband dual polarized antenna |
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Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694237A (en) * | 2012-05-21 | 2012-09-26 | 华为技术有限公司 | Dual polarized antenna unit and base station antenna |
| CN103311652A (en) * | 2013-05-17 | 2013-09-18 | 广东通宇通讯股份有限公司 | Ultra-wideband and wide beam bipolar antenna unit |
| CN104300233A (en) * | 2014-08-13 | 2015-01-21 | 广州埃信电信设备有限公司 | Ultra-wideband dual-polarized multi-input multi-output antenna |
| WO2016078475A1 (en) | 2014-11-18 | 2016-05-26 | 李梓萌 | Miniaturized dipole base station antenna |
| CN106025555A (en) * | 2016-05-19 | 2016-10-12 | 西安电子科技大学 | Broadband dual polarization dipole antenna |
| CN106207495A (en) * | 2016-08-23 | 2016-12-07 | 江苏省东方世纪网络信息有限公司 | Dual polarized antenna and radiating element thereof |
| EP3280006A1 (en) | 2016-08-03 | 2018-02-07 | Li, Zimeng | A dual polarized antenna |
| CN107785658A (en) * | 2017-09-25 | 2018-03-09 | 摩比天线技术（深圳）有限公司 | Bipolarization antenna for base station |
| CN107799878A (en) * | 2016-08-30 | 2018-03-13 | 安弗施无线射频***（上海）有限公司 | A kind of broadband dual-polarization radiating unit |
| CN108183313A (en) * | 2017-12-22 | 2018-06-19 | 华南理工大学 | Ultra wideband dual polarization antenna radiation unit and antenna for base station |
| CN109244652A (en) * | 2018-11-06 | 2019-01-18 | 深圳市鑫龙通信技术有限公司 | A kind of antenna oscillator of base station |
| CN109473777A (en) * | 2017-09-08 | 2019-03-15 | Pc-Tel公司 | A kind of broadband low section dual-linear polarization antenna for the two-in-one platform of OneLTE |
| CN110994198A (en) * | 2020-01-09 | 2020-04-10 | 广东健博通科技股份有限公司 | Antenna subarray |
| CN111029768A (en) * | 2020-01-09 | 2020-04-17 | 广东健博通科技股份有限公司 | Broadband dual-polarization radiating unit and large-scale array antenna |
| WO2020199334A1 (en) * | 2019-03-29 | 2020-10-08 | 摩比科技（深圳）有限公司 | Dual polarized radiating unit and base station antenna |
| CN111937241A (en) * | 2019-02-01 | 2020-11-13 | Pc-Tel公司 | Dual band antenna with trapped wave cross-polarization suppression |
| CN112751164A (en) * | 2019-10-29 | 2021-05-04 | 比亚迪股份有限公司 | High-gain antenna oscillator |
| WO2022193423A1 (en) * | 2021-03-15 | 2022-09-22 | 罗森伯格技术有限公司 | Radiating component for use in antenna and antenna comprising the radiating component |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201430216Y (en) * | 2009-05-07 | 2010-03-24 | 广东通宇通讯设备有限公司 | Broadband bipolarization antenna |
-
2009
- 2009-05-07 CN CN200910039398.9A patent/CN101707292B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201430216Y (en) * | 2009-05-07 | 2010-03-24 | 广东通宇通讯设备有限公司 | Broadband bipolarization antenna |
Cited By (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694237B (en) * | 2012-05-21 | 2015-08-19 | 华为技术有限公司 | A kind of dual polarized antenna unit and antenna for base station |
| CN102694237A (en) * | 2012-05-21 | 2012-09-26 | 华为技术有限公司 | Dual polarized antenna unit and base station antenna |
| CN103311652A (en) * | 2013-05-17 | 2013-09-18 | 广东通宇通讯股份有限公司 | Ultra-wideband and wide beam bipolar antenna unit |
| CN103311652B (en) * | 2013-05-17 | 2016-01-20 | 广东通宇通讯股份有限公司 | Ultra-wideband wide-beam dual-polarized antenna unit |
| CN104300233B (en) * | 2014-08-13 | 2017-04-26 | 广州埃信电信设备有限公司 | Ultra-wideband dual-polarized multi-input multi-output antenna |
| CN104300233A (en) * | 2014-08-13 | 2015-01-21 | 广州埃信电信设备有限公司 | Ultra-wideband dual-polarized multi-input multi-output antenna |
| WO2016078475A1 (en) | 2014-11-18 | 2016-05-26 | 李梓萌 | Miniaturized dipole base station antenna |
| CN106025555A (en) * | 2016-05-19 | 2016-10-12 | 西安电子科技大学 | Broadband dual polarization dipole antenna |
| EP3280006A1 (en) | 2016-08-03 | 2018-02-07 | Li, Zimeng | A dual polarized antenna |
| CN106207495A (en) * | 2016-08-23 | 2016-12-07 | 江苏省东方世纪网络信息有限公司 | Dual polarized antenna and radiating element thereof |
| CN107799878A (en) * | 2016-08-30 | 2018-03-13 | 安弗施无线射频***（上海）有限公司 | A kind of broadband dual-polarization radiating unit |
| CN109473777A (en) * | 2017-09-08 | 2019-03-15 | Pc-Tel公司 | A kind of broadband low section dual-linear polarization antenna for the two-in-one platform of OneLTE |
| CN107785658A (en) * | 2017-09-25 | 2018-03-09 | 摩比天线技术（深圳）有限公司 | Bipolarization antenna for base station |
| CN107785658B (en) * | 2017-09-25 | 2024-04-19 | 摩比天线技术（深圳）有限公司 | Dual polarized base station antenna |
| CN108183313A (en) * | 2017-12-22 | 2018-06-19 | 华南理工大学 | Ultra wideband dual polarization antenna radiation unit and antenna for base station |
| CN108183313B (en) * | 2017-12-22 | 2020-07-03 | 华南理工大学 | Ultra-wideband dual-polarized antenna radiation unit and base station antenna |
| CN109244652A (en) * | 2018-11-06 | 2019-01-18 | 深圳市鑫龙通信技术有限公司 | A kind of antenna oscillator of base station |
| CN111937241A (en) * | 2019-02-01 | 2020-11-13 | Pc-Tel公司 | Dual band antenna with trapped wave cross-polarization suppression |
| WO2020199334A1 (en) * | 2019-03-29 | 2020-10-08 | 摩比科技（深圳）有限公司 | Dual polarized radiating unit and base station antenna |
| CN112751164A (en) * | 2019-10-29 | 2021-05-04 | 比亚迪股份有限公司 | High-gain antenna oscillator |
| CN110994198A (en) * | 2020-01-09 | 2020-04-10 | 广东健博通科技股份有限公司 | Antenna subarray |
| CN111029768A (en) * | 2020-01-09 | 2020-04-17 | 广东健博通科技股份有限公司 | Broadband dual-polarization radiating unit and large-scale array antenna |
| CN110994198B (en) * | 2020-01-09 | 2021-10-15 | 广东健博通科技股份有限公司 | Antenna subarray |
| WO2022193423A1 (en) * | 2021-03-15 | 2022-09-22 | 罗森伯格技术有限公司 | Radiating component for use in antenna and antenna comprising the radiating component |
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