CN103531916A - Adjustable base station antenna reflection frame - Google Patents
Adjustable base station antenna reflection frame Download PDFInfo
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- CN103531916A CN103531916A CN201310386490.9A CN201310386490A CN103531916A CN 103531916 A CN103531916 A CN 103531916A CN 201310386490 A CN201310386490 A CN 201310386490A CN 103531916 A CN103531916 A CN 103531916A
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- 239000002184 metal Substances 0.000 claims abstract description 47
- 238000009434 installation Methods 0.000 claims abstract description 10
- 210000005056 cell body Anatomy 0.000 claims description 12
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000005855 radiation Effects 0.000 abstract description 10
- 238000004891 communication Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000005457 optimization Methods 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 230000004447 accommodation reflex Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 210000004027 cell Anatomy 0.000 description 1
- 230000010267 cellular communication Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
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- 238000003973 irrigation Methods 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
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- 238000004088 simulation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The invention relates to an adjustable base station antenna reflection frame comprising a hoop, a supporting pipe and two base station antenna reflection frame main bodies, wherein the supporting pipe comprises a reverse hoop, a transverse supporting rod and a longitudinal supporting rod; one end of the transverse supporting rod is fixedly connected with the longitudinal supporting rod, and the other end of the transverse supporting rod is fixedly provided with the reverse hoop; each base station antenna reflection frame main body comprises a metal frame and a metal mesh, each metal frame comprises a backward rectangular metal frame and a sidewise rectangular metal frame, each backward rectangular metal frame and each sidewise rectangular metal frame are inward and forms a bevel, a fixing seat is arranged at the edge of the horizontal plane of each backward rectangular metal frame and comprises a base and press plates, a slot body is formed in each base, and the press plates are arranged on the two sides of each slot body in an extending manner; the transverse supporting rod penetrates through the slot bodies of the fixing seats of the antenna reflection frame main bodies, and the presses plates fix the transverse supporting rod and connect the two base station antenna reflection frame main bodies in an opposite direction. The adjustable base station antenna reflection frame disclosed by the invention utilizes an adjustable installation manner and can comprehensively restrain interference signals, generating out of a radiation range, of side lobes and back lobes of the antennae.
Description
Technical field
The present invention relates to a kind of antenna for base station reflection frame, particularly relate to a kind of adjustable antenna for base station reflection frame that is applied to antenna for base station shielding, the invention belongs to the communications field.
Background technology
Along with the fast development of communication industry, operator and user improve constantly the requirement of network quality, and the performance index of antenna are required also constantly to promote.Side secondary lobe and the back lobe of antenna all can produce certain interference signal outward in radiation scope, form pilot pollution, area covered, increase soft-switch proportion, thereby affect the network indexes such as system speech quality and cutting off rate, call completing rate, and may cause other problems.For example, in border area, area covered also may cause interference to neighbouring country, causes diplomatic friction.Therefore it is an Important Problems of mobile communication network optimization that the side secondary lobe of antenna and back lobe suppress.
Conventionally use in the industry at present corner reflector antenna to solving the problem of high front and back ratio and low radiation side secondary lobe.Fig. 9 is prior art corner reflector antenna sectional view.The antenna reflective face 41 of corner reflector antenna is integrated among antenna cover 40, is subject to the volume of antenna own and limits, and antenna reflective face 41 is only 20 ~ 30mm from antenna radiation unit 42, and effect of optimization is limited.More cannot, according to on-the-spot complicated network optimization environment, reflecting surface be regulated flexibly.
Existing corner reflector antenna has following problem to be difficult to solve:
Reflecting surface is fixed, cannot realize reflecting surface with the separated of antenna for base station and regulate, and effect of optimization is limited.
Reflecting surface and antenna body integral type, cannot dismantle separately.Meet environment change, while needing to change antenna for base station, cannot realize the single replacing of antenna for base station.
Mounting means is single, is not suitable for existing website transformation and optimization.
Therefore, corner reflector antenna can only play limited improvement effect, and side secondary lobe and the back lobe that cannot thoroughly solve antenna suppress problem.
Summary of the invention
The object of the invention is the deficiency existing for prior art, provide a kind of can the side secondary lobe of suppressing antenna and the adjustable antenna for base station reflection frame of the interference signal that back lobe produces outside radiation scope.
The operation principle of patent of the present invention: by antenna for base station side direction and rear to increasing antenna-reflected frame, control horizontal plane beamwidth scope and the back lobe energy leakage of antenna for base station radiation direction, make electromagnetic beam radiation in the scope of expectation, increase the attenuation of radio wave in non-radiative scope with this portion of energy radiation of suppressing antenna simultaneously, thereby reduce pilot pollution and air interference, make signal enhancing, interference reduction in the frame area of coverage.Antenna for base station reflection frame is mainly used in solving accurate control, the weight reducing of adjacent area, base station, city of borderline region wireless signal.
The technical solution adopted in the present invention is:
A kind of adjustable antenna for base station reflection frame, comprise anchor ear, stay pipe, two antenna for base station reflection frame main bodys, stay pipe comprises reverse anchor ear, transverse support bar, vertical supporting bar, and one end of transverse support bar is fixedly connected with vertical supporting bar, and transverse support bar one end is fixedly installed reverse anchor ear; Antenna for base station reflection frame main body comprises metal frame, wire netting, wire netting is arranged at metal frame inside, metal frame comprises that formation is to the interior backward rectangle metal frame to knuckle and side direction rectangle metal frame, backward rectangle metal frame horizontal plane edge is provided with holder, holder comprises a pedestal and pressing plate, pedestal has cell body, the extension of cell body both sides is provided with pressing plate, transverse support bar runs through the cell body of antenna-reflected frame body upper fixed seat, by pressing plate fixed lateral support bar and by two antenna for base station reflection frame main body subtends, connects.
In between described backward rectangle metal frame and side direction rectangle metal frame, to knuckle, it is 100 °-140 °.
Described cell body is V-type groove.
Described V-type groove matches with the transverse support bar size of stay pipe.
It is 100-600mm that described holder V-type groove is installed mobile adjustable range in transverse support bar.
Described pressing plate is perpendicular to backward rectangle metal frame, and on it, is provided with the via hole that same bolt coordinates.
The present invention has following advantages:
1, the adjustable antenna for base station reflection frame of the present invention, adopt adjustable mounting means, can be according to complicated site environment, the installation site of accommodation reflex face, the side secondary lobe of comprehensive suppressing antenna and the interference signal that back lobe produces outside radiation scope, reduce pilot pollution, area covered, increase soft-switch proportion, thus network index and the other problemses such as raising system speech quality and cutting off rate, call completing rate;
2, the adjustable antenna for base station reflection frame of the present invention, adopt independently mounting means, in the situation that do not affect installation and the replacing of antenna, can realize two-way installation, the needs that simultaneously compatible new website is installed and transform at old station have the advantages such as utilization scope is wide, with low cost in the network optimization;
3, the adjustable antenna for base station reflection frame of the present invention, can be used identical structure, develops the adjustable antenna for base station reflection frame that different frequency range is used, and can meet the outdoor wireless coverage demand of different communication systems.
Accompanying drawing explanation
Fig. 1 is antenna for base station reflection frame overall structure schematic diagram of the present invention;
Fig. 2 a is supporting tube structure end view of the present invention;
Fig. 2 b is supporting tube structure vertical view of the present invention;
Fig. 3 a is antenna for base station reflection frame agent structure left view of the present invention;
Fig. 3 b is antenna for base station reflection frame agent structure front view of the present invention;
Fig. 3 c is antenna for base station reflection frame agent structure vertical view of the present invention;
Fig. 4 a is antenna for base station reflection frame main body scheme of installation of the present invention;
Fig. 4 b is that antenna for base station reflection frame main body of the present invention regulates schematic diagram;
Fig. 5 a is antenna for base station reflection frame forward installation side view of the present invention (arrow is depicted as and regulates direction);
Fig. 5 b is the reverse installation side view of antenna for base station reflection frame of the present invention (arrow is depicted as and regulates direction);
Fig. 6 is antenna for base station reflection frame of the present invention and antenna for base station horizontal level and index variation relation figure;
Fig. 7 a and Fig. 7 b are sunykatuib analysis contrast directional diagram before and after the present invention 800～900MHz18dbi65 degree antenna attaching antenna reflection frame is installed;
Fig. 8 a and Fig. 8 b are actual measurement contrast directional diagram before and after the present invention 800～900MHz18dbi65 degree antenna attaching antenna reflection frame is installed;
Fig. 9 is the sectional view of prior art corner reflector antenna.
Wherein:
10-anchor ear;
20-stay pipe;
The reverse anchor ear of 21-;
22-transverse support bar;
23-vertical supporting bar;
30-antenna for base station reflection frame main body;
31-holder;
32-metal frame;
33-wire netting;
The backward rectangle metal frame of 321-;
322-side direction rectangle metal frame;
50-antenna;
51-pole;
40-antenna cover;
41-reflecting surface;
42-antenna radiation unit;
50-antenna;
51-pole;
Embodiment
Below in conjunction with accompanying drawing, provide specific embodiment, further illustrate the adjustable antenna for base station reflection frame of the present invention structure.
As shown in Figure 1, antenna for base station reflection frame overall structure comprises an anchor ear 10, stay pipe 20, a pair of antenna for base station reflection frame main body 30.As shown in Figure 2 a and 2 b, stay pipe 20 comprises reverse anchor ear 21, two transverse support bar 22, vertical supporting bar 23, and one end of transverse support bar 22 is fixedly connected with vertical supporting bar 23, and transverse support bar 22 one end are fixedly installed reverse anchor ear 21.Oppositely anchor ear 21, for being connected with anchor ear 10, fixes described antenna for base station reflection frame main body 30 and stay pipe 20; Transverse support bar 22, the reflection frame main body of launching for fixed support subtend, and can, according to actual demands of engineering, regulate distance between antenna for base station reflection frame main body and antenna body.Vertical supporting bar, as mounted base station antenna pole used.
As Fig. 3 a, Fig. 3 b, shown in Fig. 3 c, antenna for base station reflection frame main body 30 comprises metal frame 32, wire netting 33, wire netting 33 is arranged at metal frame 32 inside, the frame structure that metal frame 32 forms for brandreth, metal frame 32 comprises backward rectangle metal frame 321 and side direction rectangle metal frame 322, backward rectangle metal frame 321 and side direction rectangle metal frame 322 form by a horizontal plane and the plane that is knuckle with it, backward rectangle metal frame 321 above and belows, horizontal plane edge are provided with fixedly all-in-one-piece holder 31, holder comprises a pedestal and pressing plate, pedestal is fixed into one with backward rectangle metal frame 321 frame one sides, pedestal has cell body, cell body in the embodiment of the present invention is V-type cell body, the extension of V-type cell body both sides is provided with symmetrical pressing plate, pressing plate is perpendicular to backward rectangle metal frame 321, on pressing plate, be provided with via hole so that the use of bolt connection.
It is fixed into two antenna for base station reflection frame main bodys 30 up and down the holder 31 being wholely set and can correspondingly installs, that is: two antenna for base station reflection frame main body 30 top holders 31 can correspondingly be installed, two antenna for base station reflection frame main body 30 top holders 31 can correspondingly be installed, and the V-type groove between two corresponding mounting-fixing bases 31 matches with transverse support bar 22 sizes of stay pipe 20.Now two transverse support bar 22 run through respectively the corresponding V-type groove of assembling holder, antenna for base station reflection frame main body 30 is arranged at anchor ear 10, between stay pipe 20, pressing plate on the holder 31 of two cooperations fits, with bolt, through the via hole on pressing plate, two antenna for base station reflection frame main bodys, 30 subtends being connected to composition integral body is that a horizontal plane and the bending plane that its both sides are set form along centrosymmetric irrigation canals and ditches type structure, between backward rectangle metal frame in antenna for base station reflection frame main body 30 and side direction rectangle metal frame, form inside knuckle, the angle of knuckle is between 100 °-140 °.
In the present invention, metal frame 32 is for fixed support wire netting; Wire netting 33 is arranged at whole antenna for base station reflection frame body interior, and wire netting mainly plays isolating electromagnetic, produces diffraction attenuation, and decay antenna side secondary lobe and back lobe interference signal, for screened shielded antanna side secondary lobe and back lobe interference signal; Vertical supporting bar 23 can be used as mounted base station antenna pole used.
As shown in Fig. 4 a, anchor ear 10 connects by bolt subtend with the reverse anchor ear 21 of stay pipe 20, and stay pipe 20 is fixed on the pole 51 that base station towers encloses.The holder 31 of a pair of antenna for base station reflection frame main body 30 connects by bolt subtend, is fixed in the transverse support bar of stay pipe 20, as shown in Figure 4 b.The transverse support bar of stay pipe 20, for the adjustable range of antenna for base station reflection frame main body before and after providing, can regulate distance between antenna for base station reflection frame main body and antenna body as required, holder V-type groove in lateral support bar adjustable range between 100-600mm.
If Fig. 5 a and Fig. 5 b are that base station station antenna reflection frame forward is installed and reverse installation Comparison end view, when antenna for base station and antenna for base station reflection frame are installed simultaneously, optional selecting antennas reflection frame forward mounting means.Oppositely mounting means can not change on the installation basis of original antenna for base station, completes fast the work of installing additional of antenna for base station reflection frame, and has kept adjustable characteristic simultaneously, conveniently at existing website, transforms.
Antenna for base station reflection frame can be used same structure to be applied on different outdoor cover communication system base station antennas, different covering communication system base station antenna apparent sizes are inconsistent, the backward rectangle metal frame of antenna for base station reflection frame transverse width can be with required antenna for base station width adjusting customization, and backward rectangle metal frame longitudinal length can be with required antenna for base station length adjustment customization; Side direction rectangle metal frame transverse width can regulate customization with required antenna for base station thickness, and side direction rectangle metal frame longitudinal length can be with required antenna for base station length adjustment customization.
A kind of individually adjusted antenna for base station reflection frame of the present invention, can adjust the horizontal range between antenna for base station reflection frame and antenna for base station according to actual needs, changes signal attenuation size.
It is example that table one be take 800 ~ 900MHz18dbi65 degree antenna, has compared between antenna for base station reflection frame and antenna for base station when horizontal level changes the situation of change of antenna index.The moving horizontally in scope of 100mm ~ 600mm, horizontal beam width has been restrained 2 ° ~ 4 ° as can be seen from the table, ± 60 ° of power 5dB ~ 76dB that declined, and the back lobe power 4dB ~ 6dB that declined, has met actual demand far away, can thoroughly solve interference problem.
Table one antenna for base station reflection frame and antenna for base station horizontal level and index variation relation
Antenna for base station side secondary lobe and back lobe leading indicator change as shown in Figure 6, as seen from the figure, the convergence of antenna for base station horizontal beam width and ± 60 ° of power decline and are slow decreasing trend, and back lobe power declines to presenting and first increases the trend subtracting afterwards, and between 400-500mm, reaches maximum.Therefore for 800 ~ 900MHz18dbi65 degree antenna, can, suitably by the reach of antenna for base station reflection frame, can suitably antenna for base station reflection frame be placed in to centre position while adjusting for back lobe index while adjusting for side secondary lobe index.
If Fig. 7 a and Fig. 7 b are sunykatuib analysis contrast directional diagram before and after 800 ~ 900MHz18dbi65 degree antenna attaching antenna reflection frame is installed, adjustable range s=400mm.As shown in the figure, before installing, antenna horizontal plane is a more common antenna pattern, and 3dB width is 65 ° can find out that through installing horizontal plane 3dB width is reduced to 60 ° by original 65 ° after reflection frames.Outside 3dB width, level value is decayed rapidly, by original 7dB, increases to 15dB, can effectively reduce the area covered in cellular communication, reduces switching and the call drop of overlapping region; Front and back are greater than 30Db than being improved as by original 23-24dB, can effectively reduce back lobe impact, increase overlay area capacity.
If Fig. 8 a and Fig. 8 b are 800～900MHz18dbi65 degree antenna actual measurement contrast directional diagram before and after antenna-reflected frame is installed, adjustable range s=400mm, measured result is consistent with simulation result as seen from the figure.In Fig. 6, a curve is antenna for base station reflection frame and antenna for base station horizontal level and back lobe power decline Δ P1 (dB) variation relation figure; B curve be antenna for base station reflection frame and antenna for base station horizontal level and horizontal beam width convergence ΔΦ (°) variation relation figure; C curve is antenna for base station reflection frame and antenna for base station horizontal level and ± 60 ° of power decline Δ P2 (dB) variation relation figure.
The embodiment of patent of the present invention can be applied to any standard 3G mobile network, on CDMA/WCDMA/TD-SCDMA mobile network's antenna for base station.
This antenna for base station reflection frame of the present invention can be for solving accurate control, the weight reducing of adjacent area, base station, city of borderline region wireless signal.1) solve the accurate control of borderline region wireless signal: side secondary lobe, back lobe are controlled bad meeting and cause adjacent cell to disturb and sector interference, affect the accurate covering of wireless signal to borderline region.Coverage Control is improper, certainly will because of can not soft handover, border interference etc. has a strong impact on speech quality, affects user's communication effect, causes harmful effect.Particularly, in border area, affect more far-reaching.In border area covered problem, occur that on Shi，Yue district signal antenna, installing day antenna for base station reflection frame additional can easily solve border area covered problem.2) base station, city neighboring BS relationship weight reducing: neighboring BS relationship weight reducing in base station is by improving the soft handover of promptness, avoids because not switching in time the generation of the invalid adjacent area combination causing.Adjacent area weight reducing, not only to significantly improving the cutting off rate of network, strengthens the stability of network, also can reduce the adjacent area quantity that base station need to configure simultaneously, cuts operating costs.In the relatively many regions of the base station constructions such as area, down town, adjacent area is generally on the high side, installs accurately control signal coverage of antenna for base station reflection frame on these antenna for base station additional, the object also reducing to adjacent area quantity with regard to Danone.Because of the coverage of accurate control signal, the ratio of soft handover can significantly lower simultaneously, and resource utilization is improved significantly.
Although the Some features embodiment of patent of the present invention is had been described in detail by example, it should be appreciated by those skilled in the art, above example is only in order to describe, rather than in order to limit the scope of patent of the present invention.It should be appreciated by those skilled in the art, can in the situation that do not depart from the scope and spirit of patent of the present invention, above embodiment be modified.The scope of patent of the present invention is limited by claims.
Claims (6)
1. an adjustable antenna for base station reflection frame, it is characterized in that: comprise anchor ear (10), stay pipe (20), two antenna for base station reflection frame main bodys (30), stay pipe (20) comprises reverse anchor ear (21), transverse support bar (22), vertical supporting bar (23), the same vertical supporting bar in one end (23) of transverse support bar (22) is fixedly connected with, and transverse support bar (22) one end is fixedly installed reverse anchor ear (21), antenna for base station reflection frame main body (30) comprises metal frame (32), wire netting (33), wire netting (33) is arranged at metal frame (32) inside, metal frame (32) comprises that formation is to the interior backward rectangle metal frame (321) to knuckle and side direction rectangle metal frame (322), backward rectangle metal frame (321) horizontal plane edge is provided with holder (31), holder comprises a pedestal and pressing plate, pedestal has cell body, the extension of cell body both sides is provided with pressing plate, transverse support bar (22) runs through the cell body of antenna-reflected frame body (30) upper fixed seat, by pressing plate fixed lateral support bar (22) and by two antenna for base station reflection frame main bodys (30) subtend, connect.
2. a kind of adjustable antenna for base station reflection frame as claimed in claim 1, is characterized in that: between described backward rectangle metal frame (321) and side direction rectangle metal frame (322), to knuckle, be 100 °-140 °.
3. a kind of adjustable antenna for base station reflection frame as claimed in claim 1, is characterized in that: described cell body is V-type groove.
4. a kind of adjustable antenna for base station reflection frame as claimed in claim 3, is characterized in that: transverse support bar (22) size of the same stay pipe of described V-type groove (20) matches.
5. a kind of adjustable antenna for base station reflection frame as claimed in claim 4, is characterized in that: described holder (31) V-type groove is 100-600mm in the mobile adjustable range of the upper installation of transverse support bar (22).
6. a kind of adjustable antenna for base station reflection frame as claimed in claim 1, is characterized in that: described pressing plate is perpendicular to backward rectangle metal frame (321), and on it, is provided with the via hole that same bolt coordinates.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310386490.9A CN103531916B (en) | 2013-08-30 | 2013-08-30 | Adjustable base station antenna reflection frame |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310386490.9A CN103531916B (en) | 2013-08-30 | 2013-08-30 | Adjustable base station antenna reflection frame |
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| CN103531916A true CN103531916A (en) | 2014-01-22 |
| CN103531916B CN103531916B (en) | 2015-07-15 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037506A (en) * | 2014-06-11 | 2014-09-10 | 成都科力夫科技有限公司 | DVOR (Doppler Vor) reflecting network system |
| CN104051859A (en) * | 2014-06-13 | 2014-09-17 | 北京无线电测量研究所 | Radar antenna reflection net capable of deicing and melting snow rapidly |
| CN105449334A (en) * | 2015-12-15 | 2016-03-30 | 成都迅德科技有限公司 | Base station antenna |
| CN108682946A (en) * | 2018-05-17 | 2018-10-19 | 西安电子科技大学 | The highly directional angle reflector antenna of adjustable six wave beam in universe space based on super surface |
| WO2020177025A1 (en) * | 2019-03-01 | 2020-09-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Antenna device and base station comprising the same |
| CN116417806A (en) * | 2022-11-18 | 2023-07-11 | 河北中电华拓科技有限公司 | Net antenna reflecting surface and manufacturing method thereof |
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| CN201243084Y (en) * | 2007-12-05 | 2009-05-20 | 天线直通股份有限公司 | Antenna assembly with antenna element and reflector |
| CN103078186A (en) * | 2013-02-05 | 2013-05-01 | 思创网联（北京）科技发展有限公司 | Corner reflection unit and control method |
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| JPH0715231A (en) * | 1993-06-22 | 1995-01-17 | Nec Corp | Antenna reflection mirror |
| US20050206577A1 (en) * | 2004-03-17 | 2005-09-22 | Arcadyan Technology Corporation | Antenna apparatus having a reflector |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037506A (en) * | 2014-06-11 | 2014-09-10 | 成都科力夫科技有限公司 | DVOR (Doppler Vor) reflecting network system |
| CN104051859A (en) * | 2014-06-13 | 2014-09-17 | 北京无线电测量研究所 | Radar antenna reflection net capable of deicing and melting snow rapidly |
| CN104051859B (en) * | 2014-06-13 | 2016-08-24 | 北京无线电测量研究所 | A kind of radar antenna reflector net of quick deicing snow melt |
| CN105449334A (en) * | 2015-12-15 | 2016-03-30 | 成都迅德科技有限公司 | Base station antenna |
| CN108682946A (en) * | 2018-05-17 | 2018-10-19 | 西安电子科技大学 | The highly directional angle reflector antenna of adjustable six wave beam in universe space based on super surface |
| WO2020177025A1 (en) * | 2019-03-01 | 2020-09-10 | Telefonaktiebolaget Lm Ericsson (Publ) | Antenna device and base station comprising the same |
| US11778486B2 (en) | 2019-03-01 | 2023-10-03 | Telefonaktiebolagget LM Ericsson (Publ) | Antenna device and base station comprising the same |
| CN116417806A (en) * | 2022-11-18 | 2023-07-11 | 河北中电华拓科技有限公司 | Net antenna reflecting surface and manufacturing method thereof |
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|---|---|
| CN103531916B (en) | 2015-07-15 |
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Address after: 430205 Hubei city of Wuhan province Jiangxia Hidden Dragon Island Tan lake two Road No. 1 Patentee after: CITIC Mobile Communication Technology Co., Ltd Address before: 430073 Hubei province Wuhan Dongxin East Lake high tech Development Zone, Road No. 5 Patentee before: Wuhan Hongxin Telecommunication Technologies Co.,Ltd. |
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Address after: 430205 No.1 tanhu 2nd Road, Canglong Island, Jiangxia District, Wuhan City, Hubei Province Patentee after: CITIC Mobile Communication Technology Co.,Ltd. Address before: 430205 No.1 tanhu 2nd Road, Canglong Island, Jiangxia District, Wuhan City, Hubei Province Patentee before: CITIC Mobile Communication Technology Co., Ltd |
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