CN102117967A - Broadband dual-polarized antenna radiation unit and antenna - Google Patents
Broadband dual-polarized antenna radiation unit and antenna Download PDFInfo
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- CN102117967A CN102117967A CN2009102584957A CN200910258495A CN102117967A CN 102117967 A CN102117967 A CN 102117967A CN 2009102584957 A CN2009102584957 A CN 2009102584957A CN 200910258495 A CN200910258495 A CN 200910258495A CN 102117967 A CN102117967 A CN 102117967A
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Abstract
The invention discloses a broadband dual-polarized antenna radiation unit and an antenna using the radiation unit. The radiation unit is arranged on a metal reflector plate to form the antenna and comprises two pairs of dipole radiation units and Baluns corresponding to dipole radiation units; the two pairs of dipoles are in orthogonal polarization arrangement; each dipole comprises two unit arms which are fixedly arranged on a Balun symmetrically; the two unit arms are linear and are symmetrical about the Balun; one end of each unit arm is fixed to the Balun; the two pairs of the dipoles are positioned on the same plane; the other end of each unit arm is bent inwards; and the inwards bent part forms a loading section. Compared with the downwards bent loading section of a broadband dual-polarized antenna radiation unit of the conventional radiation unit, a dual-broadband antenna array can effectively reduce an effect of a broadband dual-polarized antenna radiation unit on a near high frequency band unit, and can more reasonably ensure the independence of various electrical properties of each frequency band in the design of a multi-frequency base station antenna.
Description
[technical field]
The present invention relates to the antenna of mobile communication base station field, particularly a kind of high performance broadband dual polarized antenna radiating element.
[technical background]
Along with the development of mobile communication technology, the index request of Bipolarization antenna for base station, particularly gain, 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.
Dual polarized antenna array element mainly adopts following several implementation: first kind, adopt dipole antenna oscillator structure two concurrents, staggered and polarization orthogonal; Second kind, select little band radiating element for use, realize dual polarization by the coupling or the form of direct feed; The third adopts the sub-quadrature of two electrode couples to place, and forms the layout of squarish.
In network communicating system commonly used, the antenna horizontal plane half-power beam width of normal use is 65 degree.Above-mentioned first kind of scheme generally is made of the dipole or the folded dipole of routine, and can obtain very wide frequency bandwidth by this form, but the horizontal beam width of antenna oscillator changes greatly with the difference of frequency, and the gain of antenna oscillator is relatively low.And in second kind of scheme, the band bandwidth of little band radiating element is narrow, and the isolation of two-port is poor, and the oscillator gain is not high, be difficult to be used on all channel antenna, and the assembling trouble.
Comparatively speaking, adopt the radiating element overall performance of the third square layout preferable, and can realize the antenna for base station of two kinds of frequency ranges, so obtain more attention by nested mode.Be a kind of broadband dual polarized antenna radiating element described in the patent No. CN201199545Y for example, this oscillator adopts two pairs of half-wave dipoles to form a dual polarization antenna radiation unit, use the coupling feeding classification simultaneously, make it to have high-gain and high front and back specific characteristic.But this design has the following disadvantages: the element that is comprised is various, and during as if production in enormous quantities, the consistency of oscillator unit is difficult to control; The bore of single radiating element is bigger than normal simultaneously, and the mutual coupling influence when row's battle array between adjacent Unit two will be strengthened, and is unfavorable for improving the overall performance of array antenna; Mode electrode couple by the coupling feed carries out feed, the current imbalance that causes the radiation arm both sides of single dipole easily, have influence on the directional diagram of whole dual polarization antenna radiation unit the most at last, bigger tracking (tracking) appears in the directional diagram behind the row's of making battle array group row.
U.S. Patent number US 4434425 and US 6333720B1 have also disclosed similar Antenna Design scheme respectively, and have provided the multifrequency antenna design of nested type; But the scheme of above-mentioned two patents has the mentioned deficiency as patent No. CN 201134512Y, among the latter and provided some improvement.The scheme as shown in Figure 1 that patent No. CN201134512Y adopted though improvement has been done in preceding relatively two patents design, but still has the following disadvantages:
1, if adopt nested mode to realize the multifrequency antenna design, be positioned at the high frequency unit of low frequency oscillator inside, because nearer from the Ba Lun of low frequency, the standing wave of high frequency unit and radiation characteristic will still be a greater impact;
2, though this patent has reduced the mutual coupling between the different frequency range oscillator by the convergence radiating aperture, because its loaded segment adopts decurved mode, this downward loaded segment still has considerable influence to the high frequency oscillator;
3, the cross section that this patent differs by thickness, overstriking comes the broadening bandwidth of operation especially endways, but it is unfavorable also to bring for the reliability of processing and oscillator.
The design will endeavour to improve above-mentioned deficiency, and a kind of high performance wideband dual polarized unit is provided, and it is simple in structure, and is easy for installation, and feed is simple, 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 the advantage of ratio.Especially in the design of multifrequency antenna for base station, can effectively reduce the interaction between different frequency range.
[summary of the invention]
First purpose of the present invention is to provide a kind of easy realization, high performance a kind of broadband dual polarized antenna radiating element.
Second purpose of the present invention is to provide a kind of antenna that uses a kind of broadband dual polarized antenna radiating element of the present invention.
The present invention realizes first purpose like this:
A kind of broadband dual polarized antenna radiating element, be used for being installed on the metallic reflection plate and constitute antenna, the Ba Lun that comprises the sub-radiating element of two electrode couples and corresponding each dipole radiation unit, two electrode couple are the polarization orthogonal setting, each dipole comprises two unit arms that are fixedly mounted on Ba Lunshang symmetrically, two unit arms are the wire about the Ba Lun symmetry, each unit arm one end is fixed on Ba Lunshang, it is characterized in that: two electrode couple are in a plane, the inside bending of the other end of unit arm, this inside dogleg section forms loaded segment.
The invention has the advantages that: owing to change the loaded segment of dipole into interior bending by bending down, can effectively reduce the height and the radiating aperture of radiating element like this, compare with existing down curved loaded segment, can effectively reduce in the antenna this broadband dual polarized antenna radiating element the effect of high frequency unit.Adopt unit of the present invention can guarantee more reasonably that the independence of every electrical property of each frequency range is especially laid a good foundation for the multifrequency antenna for base station in the design of multifrequency antenna for base station.
Above-mentioned a kind of broadband dual polarized antenna radiating element is characterized in that: the sub-Orthogonal Composite of two electrode couples forms+/-45 polarised directions of spending.
Above-mentioned a kind of broadband dual polarized antenna radiating element is characterized in that: each unit arm of dipole is made up of the identical broken line in multistage cross section.
Above-mentioned a kind of broadband dual polarized antenna radiating element is characterized in that: each unit each section of arm cross sectional shape of dipole is for circular or square.
Above-mentioned a kind of broadband dual polarized antenna radiating element is characterized in that: the Ba Lun of each dipole is an arc, and arc length is 0.2～0.3 operation wavelength.This design can effectively reduce the interaction of unit between different frequency range in the multifrequency antenna for base station.
Above-mentioned a kind of broadband dual polarized antenna radiating element is characterized in that: also comprise an annular base that is used for being installed on the metallic reflection plate, Ba Lun is arranged on the annular base.
Above-mentioned a kind of broadband dual polarized antenna radiating element, it is characterized in that: the outer surface of Ba Lun has away line groove, lays for feeder cable, and the feeder cable screen is welded on the position of Ba Lun near base.
Above-mentioned a kind of broadband dual polarized antenna radiating element is characterized in that: two unit arms of each dipole are separately fixed at the top of the both sides of Ba Lun; One feed tab is erected on the top of both sides of Ba Lun, and and the top of the both sides of this Ba Lun between be lined with the insulating washer of band through hole; Ba Lun one top is provided with and walks the slotted eye (101) that line groove is communicated with, and the through hole that passes this slotted eye and insulating washer for the feeder cable heart yearn is connected feed tab, another top of Ba Lun be provided with projection, this projection passes the insulating washer through hole and is connected with feed tab; The screen of feeder cable (91) is connected with doublet unit arm (11b), forms current circuit.The design can guarantee the consistency of electrical property, and can realize equiphase feed between every electrode couple, has guaranteed the cell operation symmetry of current.
Above-mentioned a kind of broadband dual polarized antenna radiating element is characterized in that: the integrated die cast of antenna radiation unit.
Such scheme has designed rational integrated arc Ba Lun loop, make four scripts independently pass through a firm banking integrated molding in the dipole radiation unit, change the loaded segment of dipole into interior bending by curved down, and use feed tab that each dipole is carried out direct feed.So not only can effectively reduce the height and the radiating aperture of radiating element, improve the consistency of each unit and the number of assembling steps of simplification antenna, and can effectively reduce third-order intermodulation product, and the feeding classification by symmetry reduces the tracking (tracking) of antenna pattern in+/-60 degree scopes.The above-mentioned antenna for base station of realizing high-gain, low tracking characteristic that is improved to, especially the multifrequency antenna for base station is laid a good foundation.
For realizing second purpose of the present invention, adopted following technical scheme:
A kind of wide frequency antenna battle array comprises the metallic reflection plate as reflector, it is characterized in that: linearity is arranged to few two aforesaid a kind of broadband dual polarized antenna radiating elements on the described metallic reflection plate.
A kind of pair of wide frequency antenna battle array, comprise metallic reflection plate as reflector, it is characterized in that: on the described metallic reflection plate except at least two aforesaid a kind of broadband dual polarized antenna radiating elements of linearity setting, also be provided with a plurality of high band antenna radiation units, wherein have at least a high band antenna radiation unit to be nested in aforesaid a kind of broadband dual polarized antenna radiating element.Because the loaded segment of bending in a kind of broadband dual polarized antenna radiating element adopts, compare with existing curved down loaded segment, can effectively reduce of the effect of broadband dual polarized antenna radiating element to high frequency unit, can more reasonably guarantee in the design of multifrequency antenna for base station the independence of every electrical property of each frequency range.
[description of drawings]
Fig. 1 is the structural representation of the antenna radiation unit that provides of patent No. CN 201134512Y;
Fig. 2 is the schematic perspective view of radiating element embodiment of the present invention;
Fig. 3 is the schematic perspective view of radiating element in broadband dual polarized antenna of radiating element embodiment of the present invention;
Fig. 4 a is the upward view of radiating element embodiment of the present invention;
Fig. 4 b is the end view of radiating element embodiment of the present invention;
Fig. 4 c is the local figure of the feed of radiating element embodiment of the present invention;
Fig. 5 is the schematic perspective view of radiating element in two broadband dual polarized antennas of radiating element embodiment of the present invention;
Fig. 6 is the directional diagram and the gain schematic diagram of radiating element embodiment of the present invention emulation;
Fig. 7-the 1st, one of directional diagram tracking (tracking) schematic diagram of radiating element embodiment of the present invention emulation;
Fig. 7-the 2nd, two of directional diagram tracking (tracking) schematic diagram of radiating element embodiment of the present invention emulation;
Fig. 7-the 3rd, three of directional diagram tracking (tracking) schematic diagram of radiating element embodiment of the present invention emulation.
[embodiment]
In conjunction with the accompanying drawings, as Fig. 2 and Fig. 3, it is a kind of broadband dual polarized antenna radiating element that constitutes antenna on the metallic reflection plate 10 that is installed in, 11a and 11b, 12a and 12b, 13a and 13b, 14a and 14b form single dipole respectively, 11a and 11b, 13a and 13b partner, and 12a and 12b, 14a and 14b form that another is right, are combined to form+polarised directions of/-45 degree 11a of two electrode couples and 11b by two pairs of quadratures, 12a and 12b, 13a and 13b, 14a and 14b are the arc Ba Lun 21 of 0.2～0.3 operation wavelength by arc length, 22,23,24 and firm banking 111 form incorporate dual-polarization radiating unit, the polarised direction of unit and reflecting plate angle radially is respectively+45 degree spend with-45.
(11a, 11b) is example with dipole 11, two unit arm 11a and 11b are on the top of both sides that wire is fixedly mounted on Ba Lun 21 symmetrically, each unit arm is made up of the identical circular broken line in multistage cross section, one end is fixed on Ba Lunshang, the inside bending of the other end of unit arm, this inside dogleg section forms loaded segment 61a and 61b, and the cross sectional shape of unit arm is not limited to circle certainly.
In like manner, other dipole structure is identical, as:
Dipole 12 (12a, 12b), two unit arm 12a and 12b respectively have loaded segment 62a and 62b;
Dipole 13 (13a, 13b), two unit arm 13a and 13b respectively have loaded segment 63a and 63b;
Dipole 14 (14a, 14b), two unit arm 14a and 14b respectively have loaded segment 64a and 64b.
An annular base 111 that is used for being installed on the metallic reflection plate is with each Ba Lun (21,22,23,24), the integrated die cast of each unit arm (11a and 11b, 12a and 12b, 13a and 13b, 14a and 14b).
With reference to figure 2, Fig. 4 a, 4b and Fig. 4 c, the lower surface of seeing each Ba Lun from figure is a fluted body, each feeder cable 91,92,93 and 94 places and is close in the groove, each Ba Lun has pad 121 at groove near base position, 122,123 and 124, cable shield is welded on the above-mentioned pad, but reinforcement electric cable so not only, and can further improve the balance of radiating element electric current.Each Ba Lun one top is provided with and walks the slotted eye (101,102,103,104) that line groove is communicated with, each another top of Ba Lun be provided with projection (41,42,43,44).
With reference to figure 4b and Fig. 4 c, show a kind of feeding classification of this embodiment.(14a, 14b) is example with dipole 14, and a feed tab 34 is erected on the top of both sides of Ba Lun 24, and and the top of the both sides of this Ba Lun between be lined with two insulating washers 74 of band through hole; The through hole that passes this slotted eye (101) and insulating washer for the feeder cable heart yearn is connected feed tab 34, and this projection 44 passes the insulating washer through hole and is connected with feed tab; The screen of feeder cable (91) is connected with doublet unit arm (11b), forms current circuit.Above-mentioned design can guarantee the consistency of electrical property, and can realize equiphase feed between every electrode couple, has guaranteed the cell operation symmetry of current.
Other dipole feeding classification in like manner, as:
Dipole 11 (11a, 11b), feed tab 31 are erected at by two insulating washers 71 on the top of both sides of Ba Lun 21;
Dipole 12 (12a, 12b), feed tab 32 are erected at by two insulating washers 72 on the top of both sides of Ba Lun 22;
Dipole 13 (13a, 13b), feed tab 33 are erected at by two insulating washers 73 on the top of both sides of Ba Lun 23.
Radiating element of the present invention is mainly used in the antenna base station of mobile communication:
With reference to figure 2,3, broadband dual polarized antenna radiating element of the present invention passes through three fixed hole positions (81,82,83) of the firm banking 111 of annular, is installed on the metallic reflection plate 10 to constitute antenna.
With reference to Fig. 5, the present invention and another be a kind of way of realization of the unit composition dual-band and dual-polarization of high band more.The unit A1 of the foregoing description of low-frequency range and the unit B 1 of A2 and high band, B2 and B3 are coaxial group of battle array, and wherein B1 and B3 are embedded in A1 respectively, among the A2.The present invention can farthest reduce A1, and the A2 unit simultaneously, because the loaded segment of bending in adopting is compared with existing curved down loaded segment, can effectively reduce the effect of low frequency cell to high frequency unit B2 to the effect of embedded unit B 1 and B3.Adopt unit of the present invention can more reasonably guarantee in the design of multifrequency antenna for base station the independence of every electrical property of each frequency range.
About directional diagram of the present invention and the gain can be with reference to figure 6 and Fig. 7-1, Fig. 7-2, Fig. 7-3.As seen in Figure 6, in the frequency range of 806-960MHz, gain of the present invention is all more than 10dB; And according to shown in Fig. 7-1, Fig. 7-2, Fig. 7-3, can well overlap with the antenna pattern under the different polarization of frequency, have good tracking characteristic.
Remark additionally at last, the feeding classification of radiant body is the direct feed mode, produces reliably, and the layout of feeding network is convenient, flexible.If change other feeding classification into,, at this moment only need suitably to regulate the size of radiant body and the reactance value size of coupling unit as Air Coupling etc.If of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies, then invention also intention comprise these changes and modification interior.
Claims (12)
1. broadband dual polarized antenna radiating element, be used for being installed on the metallic reflection plate and constitute antenna, the Ba Lun that comprises the sub-radiating element of two electrode couples and corresponding each dipole radiation unit, two electrode couple are the polarization orthogonal setting, each dipole comprises two unit arms that are fixedly mounted on Ba Lunshang symmetrically, two unit arms are the wire about the Ba Lun symmetry, each unit arm one end is fixed on Ba Lunshang, it is characterized in that: two electrode couple are in a plane, the inside bending of each unit arm other end, this inside dogleg section forms loaded segment.
2. a kind of broadband dual polarized antenna radiating element according to claim 1 is characterized in that: the sub-Orthogonal Composite of two electrode couples forms+/-45 polarised directions of spending.
3. a kind of broadband dual polarized antenna radiating element according to claim 1 is characterized in that: each unit arm of dipole is made up of the identical broken line in multistage cross section.
4. a kind of broadband dual polarized antenna radiating element according to claim 3 is characterized in that: each unit each section of arm cross sectional shape of dipole is for circular or square.
5. a kind of broadband dual polarized antenna radiating element according to claim 1 is characterized in that: the Ba Lun of each dipole is an arc, and arc length is 0.2～0.3 operation wavelength.
6. a kind of broadband dual polarized antenna radiating element according to claim 1 is characterized in that: also comprise an annular base that is used for being installed on the metallic reflection plate, Ba Lun is arranged on the annular base.
7. a kind of broadband dual polarized antenna radiating element according to claim 6, it is characterized in that: the outer surface of Ba Lun has away line groove, lays for feeder cable.
8. a kind of broadband dual polarized antenna radiating element according to claim 7 is characterized in that: two unit arms of each dipole are separately fixed at the top of the both sides of Ba Lun; One feed tab is erected on the top of both sides of Ba Lun, and and the top of the both sides of this Ba Lun between be lined with the insulating washer of band through hole; Ba Lun one top is provided with and walks the slotted eye (101) that line groove is communicated with, and the through hole that passes this slotted eye and insulating washer for the feeder cable heart yearn is connected feed tab, another top of Ba Lun be provided with projection, this projection passes the insulating washer through hole and is connected with feed tab; The screen of feeder cable (91) is connected with doublet unit arm (11b), forms current circuit.
9. a kind of broadband dual polarized antenna radiating element according to claim 8 is characterized in that: the feeder cable screen is welded on the position of Ba Lun near base.
10. as the described a kind of broadband dual polarized antenna radiating element of claim 1～9, it is characterized in that: the integrated die cast of antenna radiation unit.
11. a wide frequency antenna comprises the metallic reflection plate as reflector, it is characterized in that: linearity is arranged to and lacks two as any described a kind of broadband dual polarized antenna radiating element in the claim 1～10 on the described metallic reflection plate.
12. two wide frequency antenna, comprise metallic reflection plate as reflector, it is characterized in that: on the described metallic reflection plate except at least two of linearity settings as any described a kind of broadband dual polarized antenna radiating element in the claim 1～10, also be provided with a plurality of high band antenna radiation units, wherein have at least a high band antenna radiation unit to be embedded in as in any described a kind of broadband dual polarized antenna radiating element in the claim 1～9.
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| CN2009102584957A CN102117967A (en) | 2009-12-30 | 2009-12-30 | Broadband dual-polarized antenna radiation unit and antenna |
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| CN2009102584957A CN102117967A (en) | 2009-12-30 | 2009-12-30 | Broadband dual-polarized antenna radiation unit and antenna |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012162975A1 (en) * | 2011-09-07 | 2012-12-06 | 华为技术有限公司 | Dual-frequency dual-polarized antenna |
| CN103311675A (en) * | 2013-05-10 | 2013-09-18 | 广东博纬通信科技有限公司 | Broadband dual-polarized antenna unit and broadband antenna |
| CN103647140A (en) * | 2013-12-16 | 2014-03-19 | 广州杰赛科技股份有限公司 | Dual-polarization antenna |
| US9196969B2 (en) | 2011-03-17 | 2015-11-24 | Tongyu Communication, Inc. | Radiating element for antenna |
| WO2016078475A1 (en) | 2014-11-18 | 2016-05-26 | 李梓萌 | Miniaturized dipole base station antenna |
| CN106340711A (en) * | 2016-08-23 | 2017-01-18 | 江苏省东方世纪网络信息有限公司 | Dual-polarized antenna |
| CN106602223A (en) * | 2016-12-16 | 2017-04-26 | 华南理工大学 | Low-frequency radiation unit |
| EP3280006A1 (en) | 2016-08-03 | 2018-02-07 | Li, Zimeng | A dual polarized antenna |
| CN107799878A (en) * | 2016-08-30 | 2018-03-13 | 安弗施无线射频系统（上海）有限公司 | A kind of broadband dual-polarization radiating unit |
| CN108075237A (en) * | 2017-12-11 | 2018-05-25 | 江苏煌恒通信设备制造有限公司 | A kind of broadband dual polarization square-shaped radiation unit and 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 |
| CN109980329A (en) * | 2019-03-12 | 2019-07-05 | 广东司南通信科技有限公司 | A kind of broadband dual polarized antenna |
| CN110323558A (en) * | 2018-03-30 | 2019-10-11 | 罗森伯格技术（昆山）有限公司 | A kind of wideband dipole |
| CN111092296A (en) * | 2019-09-30 | 2020-05-01 | 京信通信技术(广州)有限公司 | Base station antenna and radiating element thereof |
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9196969B2 (en) | 2011-03-17 | 2015-11-24 | Tongyu Communication, Inc. | Radiating element for antenna |
| WO2012162975A1 (en) * | 2011-09-07 | 2012-12-06 | 华为技术有限公司 | Dual-frequency dual-polarized antenna |
| CN103311675A (en) * | 2013-05-10 | 2013-09-18 | 广东博纬通信科技有限公司 | Broadband dual-polarized antenna unit and broadband antenna |
| CN103311675B (en) * | 2013-05-10 | 2016-01-06 | 广东博纬通信科技有限公司 | A kind of broadband dual polarized antenna unit and wide frequency antenna |
| CN103647140A (en) * | 2013-12-16 | 2014-03-19 | 广州杰赛科技股份有限公司 | Dual-polarization antenna |
| CN103647140B (en) * | 2013-12-16 | 2016-05-18 | 广州杰赛科技股份有限公司 | Dual polarized antenna |
| WO2016078475A1 (en) | 2014-11-18 | 2016-05-26 | 李梓萌 | Miniaturized dipole base station antenna |
| EP3280006A1 (en) | 2016-08-03 | 2018-02-07 | Li, Zimeng | A dual polarized antenna |
| CN106340711A (en) * | 2016-08-23 | 2017-01-18 | 江苏省东方世纪网络信息有限公司 | Dual-polarized antenna |
| CN106340711B (en) * | 2016-08-23 | 2022-08-12 | 江苏省东方世纪网络信息有限公司 | Dual-polarized antenna |
| CN107799878A (en) * | 2016-08-30 | 2018-03-13 | 安弗施无线射频系统（上海）有限公司 | A kind of broadband dual-polarization radiating unit |
| CN106602223A (en) * | 2016-12-16 | 2017-04-26 | 华南理工大学 | Low-frequency radiation unit |
| CN106602223B (en) * | 2016-12-16 | 2023-05-02 | 华南理工大学 | Low-frequency radiation unit |
| CN108075237A (en) * | 2017-12-11 | 2018-05-25 | 江苏煌恒通信设备制造有限公司 | A kind of broadband dual polarization square-shaped radiation unit and antenna |
| CN110323558A (en) * | 2018-03-30 | 2019-10-11 | 罗森伯格技术（昆山）有限公司 | A kind of wideband dipole |
| CN110323558B (en) * | 2018-03-30 | 2023-08-18 | 普罗斯通信技术（苏州）有限公司 | Broadband dipole |
| 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 |
| CN109980329A (en) * | 2019-03-12 | 2019-07-05 | 广东司南通信科技有限公司 | A kind of broadband dual polarized antenna |
| CN109980329B (en) * | 2019-03-12 | 2023-12-26 | 广州司南技术有限公司 | Broadband dual polarized antenna |
| CN111092296A (en) * | 2019-09-30 | 2020-05-01 | 京信通信技术(广州)有限公司 | Base station antenna and radiating element thereof |
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Application publication date: 20110706 |