CN201430216Y - Broadband bipolarization antenna - Google Patents
Broadband bipolarization antenna Download PDFInfo
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- CN201430216Y CN201430216Y CN2009200563237U CN200920056323U CN201430216Y CN 201430216 Y CN201430216 Y CN 201430216Y CN 2009200563237 U CN2009200563237 U CN 2009200563237U CN 200920056323 U CN200920056323 U CN 200920056323U CN 201430216 Y CN201430216 Y CN 201430216Y
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- polarized antenna
- dual polarized
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Abstract
The utility model discloses an integrated broadband bipolarization antenna which comprises a radiating body and a balanced feed device. The balanced feed device meanwhile composes a supporting arm ofan antenna oscillator, the radiating body is a symmetrical radiating array which is composed of four radiating units, each radiating unit is composed of two branches which are symmetrical left and right, and a hollow-out hole is respectively arranged on each branch so as to form a parallel-connected current path. The ends of two branches are connected by a connecting arm so as to lead the left andright branches of each radiating unit to form a closed electromagnetic loop. The balanced feed device is two pairs of U-type baluns which are mutually orthogonal, the bottom parts of the U-type baluns are connected, and four supporting surfaces which are formed at the top parts of the U-type baluns are respectively supported at connecting parts of the radiating units so as to form an integrated structure together with the radiating body. The broadband bipolarization antenna has the characteristics of simple structure, convenient installation, easy feed, good consistency and easy production. The beam width of a horizontal plane fluctuates little along with the frequency; moreover, the broadband bipolarization antenna has good intersecting polarization property and has the advantages of high gains and high front-to-back ratio.
Description
[technical field]
The utility model 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 utility model 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.
[utility model content]
The purpose of this utility model 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 purpose of this utility model is achieved in that
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 utility model 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 utility model is not installed feed tab;
Fig. 2 is the structural representation after the utility model is loaded onto feed tab;
Fig. 3 is the structural representation of the utility model bottom;
Fig. 4 is the structural representation after the utility model connects feeder cable;
Fig. 5 is the structural representation that the utility model feed tab is installed;
Fig. 6 is the structural representation of the utility model radiating element;
Fig. 7 is the structural representation of the utility model adjacent radiation unit connected mode.
Fig. 8 is the standing wave of the utility model actual measurement and isolates schematic diagram
Fig. 9 is the directional diagram and the gain schematic diagram of the utility model emulation
[embodiment]
As shown in drawings, the symmetrical radiating curtain that radiant body of the present utility model is made up of four radiating elements 1, each radiating element 1 is made up of symmetrical two branches, all is provided with hollow hole 6 in each branch, thereby forms 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 the protection range of the present utility model.
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 standing wave of the utility model actual measurement and isolates schematic diagram, as seen based on oscillator of the present utility model 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 utility model unit emulation horizontal radiation pattern, as can be seen from the figure the utility model is in 1710～2170MHz, 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, 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, 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 |
|---|---|---|---|
| CN2009200563237U CN201430216Y (en) | 2009-05-07 | 2009-05-07 | Broadband bipolarization antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200563237U CN201430216Y (en) | 2009-05-07 | 2009-05-07 | Broadband bipolarization antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201430216Y true CN201430216Y (en) | 2010-03-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200563237U Expired - Lifetime CN201430216Y (en) | 2009-05-07 | 2009-05-07 | Broadband bipolarization antenna |
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| CN (1) | CN201430216Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707292A (en) * | 2009-05-07 | 2010-05-12 | 广东通宇通讯设备有限公司 | Broadband dual polarized antenna |
| CN102891353A (en) * | 2012-09-29 | 2013-01-23 | 武汉虹信通信技术有限责任公司 | Umbrella-shaped ultra-wideband bipolarization base station antenna radiation unit |
| CN103633420A (en) * | 2012-08-28 | 2014-03-12 | 京信通信系统（中国）有限公司 | Dual polarization wideband radiation unit and array antenna |
| CN104377434A (en) * | 2013-08-13 | 2015-02-25 | Ace技术株式会社 | Wideband base station antenna radiator |
| CN106450715A (en) * | 2016-08-23 | 2017-02-22 | 江苏省东方世纪网络信息有限公司 | Dual-polarized antenna and radiation unit thereof |
| CN107968254A (en) * | 2018-01-02 | 2018-04-27 | 广东盛路通信科技股份有限公司 | A kind of antenna oscillator |
| CN110661076A (en) * | 2019-08-22 | 2020-01-07 | 中国通信建设集团设计院有限公司 | Dual-polarized radiation unit and antenna for 5G communication |
-
2009
- 2009-05-07 CN CN2009200563237U patent/CN201430216Y/en not_active Expired - Lifetime
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707292A (en) * | 2009-05-07 | 2010-05-12 | 广东通宇通讯设备有限公司 | Broadband dual polarized antenna |
| CN103633420A (en) * | 2012-08-28 | 2014-03-12 | 京信通信系统（中国）有限公司 | Dual polarization wideband radiation unit and array antenna |
| CN103633420B (en) * | 2012-08-28 | 2016-10-05 | 京信通信系统（中国）有限公司 | Dual-polarized broadband radiation unit and array antenna |
| CN102891353A (en) * | 2012-09-29 | 2013-01-23 | 武汉虹信通信技术有限责任公司 | Umbrella-shaped ultra-wideband bipolarization base station antenna radiation unit |
| CN102891353B (en) * | 2012-09-29 | 2015-08-19 | 武汉虹信通信技术有限责任公司 | A kind of umbrella shape ultra-wideband Bipolarization antenna for base station radiating element |
| CN104377434A (en) * | 2013-08-13 | 2015-02-25 | Ace技术株式会社 | Wideband base station antenna radiator |
| CN106450715A (en) * | 2016-08-23 | 2017-02-22 | 江苏省东方世纪网络信息有限公司 | Dual-polarized antenna and radiation unit thereof |
| CN107968254A (en) * | 2018-01-02 | 2018-04-27 | 广东盛路通信科技股份有限公司 | A kind of antenna oscillator |
| CN110661076A (en) * | 2019-08-22 | 2020-01-07 | 中国通信建设集团设计院有限公司 | Dual-polarized radiation unit and antenna for 5G communication |
| CN110661076B (en) * | 2019-08-22 | 2021-04-20 | 中国通信建设集团设计院有限公司 | Dual-polarized radiation unit and antenna for 5G communication |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: GUANGDONG TONGYU COMMUNICATIONS CO., LTD. Free format text: FORMER NAME: GUANGDONG TONGYU COMMUNICATION EQUIPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 528437 Torch Road 9, Torch Development Zone, Guangdong, Zhongshan, -1 Patentee after: Guangdong Tongyu Communications Co., Ltd. Address before: 528437 Torch Road 9, Torch Development Zone, Guangdong, Zhongshan, -1 Patentee before: Guangdong Tongyu Communication Equipment Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20100324 Effective date of abandoning: 20090507 |
|
| RGAV | Abandon patent right to avoid regrant |