CN103531916B - Adjustable base station antenna reflection frame - Google Patents
Adjustable base station antenna reflection frame Download PDFInfo
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- CN103531916B CN103531916B CN201310386490.9A CN201310386490A CN103531916B CN 103531916 B CN103531916 B CN 103531916B CN 201310386490 A CN201310386490 A CN 201310386490A CN 103531916 B CN103531916 B CN 103531916B
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- base station
- station antenna
- antenna reflection
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- metal frame
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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 base station antenna reflection frame, particularly relate to a kind of adjustable base station antenna reflection frame being 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 the requirement of user to network quality improve constantly, and require also constantly to promote to the performance index of antenna.The side secondary lobe of antenna and back lobe all can produce certain interference signal outward in radiation scope, form pilot pollution, area covered, increase soft-switch proportion, thus influential system speech quality and the network index such as cutting off rate, call completing rate, and other problems may be caused.Such as in border area, area covered also may cause interference to neighbouring country, causes diplomatic friction.Therefore the side secondary lobe of antenna and back lobe suppression are Important Problems of mobile communication network optimization.
Usually use in the industry corner reflector antenna to solving the problem of high front and back ratio and Low emissivity side secondary lobe at present.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, and be subject to the volume of antenna own and limit, antenna reflective face 41 is only 20 ~ 30mm from antenna radiation unit 42, and effect of optimization is limited.More according to on-the-spot complicated network optimization environment, reflecting surface cannot be regulated flexibly.
Existing corner reflector antenna has following problem to be difficult to solve:
Reflecting surface is fixed, and cannot realize being separated and regulating of reflecting surface and antenna for base station, effect of optimization is limited.
Reflecting surface and antenna body integral type, cannot dismantle separately.Meet environment change, when need change antenna for base station, the single replacing of antenna for base station cannot be realized.
Mounting means is single, is not suitable for existing website transformation and optimization.
Therefore, corner reflector antenna can only play limited improvement result, and side secondary lobe and the back lobe that thoroughly cannot solve antenna suppress problem.
Summary of the invention
The object of the invention is the deficiency existed for prior art, provide a kind of can the adjustable base station antenna reflection frame of interference signal that produces outward in radiation scope of the side secondary lobe of suppressing antenna and back lobe.
The operation principle of patent of the present invention: by antenna for base station side direction and rear to increase antenna-reflected frame, control horizontal plane beamwidth scope and the back lobe energy leakage in base station antenna radiation direction, make electromagnetic beam radiation in the scope expected, increase the attenuation of radio wave in non-radiative scope with this portion of energy radiation of suppressing antenna simultaneously, thus reduce pilot pollution and air interference, make signal enhancing, interference reduction in the frame area of coverage.Base station antenna reflection frame is mainly used in the accurate control, the weight reducing of adjacent area, base station, city that solve borderline region wireless signal.
The technical solution adopted in the present invention is:
A kind of adjustable base station antenna reflection frame, comprise anchor ear, stay pipe, two base station antenna reflection frame main bodys, stay pipe comprises reverse anchor ear, transverse support bar, vertical supporting bar, one end of transverse support bar is fixedly connected with vertical supporting bar, and the other end of transverse support bar is fixedly installed reverse anchor ear; Reverse anchor ear is connected with anchor ear, fixing described base station antenna reflection frame main body and stay pipe; Base station antenna reflection frame main body comprises metal frame, wire netting, wire netting is arranged at metal frame inside, metal frame comprises the backward rectangle metal frame and side direction rectangle metal frame that form inwardly knuckle, backward rectangle metal frame horizontal plane edge is provided with holder, holder comprises a pedestal and pressing plate, pedestal has cell body, cell body both sides are extended 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 base station antenna reflection frame main body subtends connections.
Between described backward rectangle metal frame and side direction rectangle metal frame in knuckle be 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 installs mobile adjustable range in transverse support bar.
Described pressing plate perpendicular to backward rectangle metal frame, and is provided with the via hole of same bolt cooperation.
The present invention has following advantages:
1, the adjustable base station antenna reflection frame of the present invention, adopt adjustable mounting means, can according to the site environment of complexity, the installation site in accommodation reflex face, the interference signal that the side secondary lobe of comprehensive suppressing antenna and back lobe produce outward in radiation scope, reduce pilot pollution, area covered, increase soft-switch proportion, thus improve system speech quality and the network index such as cutting off rate, call completing rate and other problems;
2, the adjustable base station antenna reflection frame of the present invention, adopt independently mounting means, when the installation and the replacing that do not affect antenna, two-way installation can be realized, the needs that simultaneously compatible new website is installed and old station is transformed, have the advantages such as operation strategies is wide, with low cost in the network optimization;
3, the adjustable base station antenna reflection frame of the present invention, can use identical structure, the adjustable base station antenna reflection frame that exploitation different frequency range uses, and can meet the outdoor wireless coverage demand of different communication systems.
Accompanying drawing explanation
Fig. 1 is base station antenna 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 base station antenna reflection frame agent structure left view of the present invention;
Fig. 3 b is base station antenna reflection frame agent structure front view of the present invention;
Fig. 3 c is base station antenna reflection frame agent structure vertical view of the present invention;
Fig. 4 a is base station antenna reflection frame main body scheme of installation of the present invention;
Fig. 4 b is that base station antenna reflection frame main body of the present invention regulates schematic diagram;
Fig. 5 a is base station antenna 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 base station antenna reflection frame of the present invention (arrow is depicted as and regulates direction);
Fig. 6 is base station antenna 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 is 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 is 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-base station antenna reflection frame main body;
31-holder;
32-metal frame;
33-wire netting;
To rectangle metal frame after 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
Provide specific embodiment below in conjunction with accompanying drawing, further illustrate adjustable base station antenna reflection frame structure of the present invention.
As shown in Figure 1, base station antenna reflection frame overall structure comprises an anchor ear 10, stay pipe 20, a pair base station antenna 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 bars 23, and one end of transverse support bar 22 is fixedly connected with vertical supporting bar 23, and transverse support bar 22 one end is fixedly installed reverse anchor ear 21.Reverse anchor ear 21, for being connected with anchor ear 10, fixing described base station antenna reflection frame main body 30 and stay pipe 20; Transverse support bar 22, for the reflection frame main body that fixed support subtend is launched, and according to actual demands of engineering, can regulate the spacing of base station antenna 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, base station antenna reflection frame main body 30 comprises metal frame 32, wire netting 33, it is inner that wire netting 33 is arranged at metal frame 32, 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 with its plane being knuckle, the holder 31 be integrally fixed is provided with above and below backward rectangle metal frame 321 horizontal plane edge, holder comprises a pedestal and pressing plate, pedestal is integrally fixed with backward rectangle metal frame 321 frame side, pedestal has cell body, cell body in the embodiment of the present invention is V-type cell body, V-type cell body both sides are extended symmetrical pressing plate, pressing plate is perpendicular to backward rectangle metal frame 321, pressing plate is provided with via hole so that the use of bolt connection.
Two its holders 31 arranged that are integrally fixed up and down of base station antenna reflection frame main body 30 can correspondingly be installed, that is: above two base station antenna reflection frame main bodys 30, holder 31 can correspondingly be installed, above two base station antenna reflection frame main bodys 30, holder 31 can correspondingly be installed, and the V-type groove between two corresponding mounting-fixing bases 31 matches with transverse support bar 22 size of stay pipe 20.Now two transverse support bar 22 run through the corresponding V-type groove assembling holder respectively, base station antenna reflection frame main body 30 is arranged at anchor ear 10, between stay pipe 20, pressing plate on two holders 31 coordinated fits, through the via hole on pressing plate, two base station antenna reflection frame main body 30 subtends being connected composition entirety with bolt is that a horizontal plane and the bending plane arranging its both sides form centrally symmetrical irrigation canals and ditches type structure, inside knuckle is formed between backward rectangle metal frame in base station antenna reflection frame main body 30 and side direction rectangle metal frame, 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 base station antenna 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 as mounted base station antenna pole used.
As shown in fig. 4 a, anchor ear 10 is connected by bolt subtend with the reverse anchor ear 21 of stay pipe 20, is fixed on by stay pipe 20 on pole 51 that base station towers encloses.The holder 31 of a pair base station antenna reflection frame main body 30 is connected 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 base station antenna reflection frame main body provide before and after adjustable range, the spacing of base station antenna reflection frame main body and antenna body can be regulated as required, holder V-type groove in lateral support bar adjustable range between 100-600mm.
If Fig. 5 a and Fig. 5 b is that base station station antenna reflection frame forward is installed and reverse installation Comparison end view, when antenna for base station and base station antenna reflection frame are installed simultaneously, optional selecting antennas reflection frame forward mounting means.Reverse mounting means can not change on the installation foundation of original antenna for base station, and what complete base station antenna reflection frame fast installs work additional, and maintains adjustable characteristic simultaneously, conveniently transforms at existing website.
Base station antenna reflection frame can use same structure to be applied on different outdoor cover communication system base station antenna, Cover treatment communication system base station antenna apparent size is inconsistent, can with required antenna for base station width adjusting customization to rectangle metal frame transverse width after base station antenna reflection frame, backward rectangle metal frame longitudinal length can 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 with required antenna for base station length adjustment customization.
A kind of individually adjusted base station antenna reflection frame of the present invention, can adjust the horizontal range between base station antenna reflection frame and antenna for base station according to actual needs, change signal attenuation size.
Table one for 800 ~ 900MHz18dbi65 degree antenna, when to compare between base station antenna reflection frame and antenna for base station horizontal level change, the situation of change of antenna index.As can be seen from the table in the horizontal moving ranges of 100mm ~ 600mm, horizontal beam width restrained 2 ° ~ 4 °, ± 60 ° of power drop 5dB ~ 76dB, back lobe power drop 4dB ~ 6dB, meet actual demand far away, thoroughly can solve interference problem.
Table one base station antenna reflection frame and antenna for base station horizontal level and index variation relation
Antenna for base station side secondary lobe and the change of back lobe leading indicator are as shown in Figure 6, as seen from the figure, the convergence of antenna for base station horizontal beam width and ± 60 ° of power drop are slow downward trend, and back lobe power drop presents the trend first increasing and subtract afterwards, and reaches maximum between 400-500mm.Therefore for 800 ~ 900MHz18dbi65 degree antenna, suitably base station antenna reflection frame can be moved forward when adjusting for side secondary lobe index, when adjusting for back lobe index, suitably base station antenna reflection frame can be placed in centre position.
If Fig. 7 a and Fig. 7 b is 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, the front antenna horizontal plane of installation is a more common antenna pattern, and 3dB width is 65 ° can find out that horizontal plane 3dB width is reduced to 60 ° by original 65 ° after installing reflection frame.Outside 3dB width, level value is decayed rapidly, increases to 15dB by original 7dB, effectively can 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, effectively can reduce back lobe impact, increase overlay area capacity.
If Fig. 8 a and Fig. 8 b is 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 base station antenna reflection frame and antenna for base station horizontal level and back lobe power drop Δ P1 (dB) variation relation figure; B curve is that base station antenna reflection frame and antenna for base station horizontal level and horizontal beam width restrain ΔΦ (°) variation relation figure; C curve is base station antenna reflection frame and antenna for base station horizontal level and ± 60 ° of power drop Δ P2 (dB) variation relation figure.
The embodiment of patent of the present invention can be applied to any standard 3G mobile network, i.e. on the antenna for base station of CDMA/WCDMA/TD-SCDMA mobile network.
This base station antenna reflection frame of the present invention may be used for the accurate control, the weight reducing of adjacent area, base station, city that solve borderline region wireless signal.1) the accurate control of borderline region wireless signal is solved: side secondary lobe, back lobe control 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, because soft handover, border interference etc. not having a strong impact on speech quality, certainly will affect user's communication effect, cause harmful effect.Particularly in border area, affect more far-reaching.When border area covered problem occurs, more district's signal antenna installs day base station antenna reflection frame additional and easily can solve border area covered problem.2) base station, city neighboring BS relationship weight reducing: neighboring BS relationship weight reducing in base station is the soft handover by improving promptness, avoids the generation of the invalid adjacent area combination caused because not switching in time.Adjacent area weight reducing, not only to the cutting off rate that significantly can improve network, strengthens the stability of network, also can reduce the adjacent area quantity that base station needs configuration simultaneously, cut operating costs.In the region that the base station constructions such as area, down town are relatively many, adjacent area is generally on the high side, and these antenna for base station install additional base station antenna reflection frame can accurate control signal coverage, also with regard to object that Danone reduces to adjacent area quantity.Simultaneously because the coverage of accurate control signal, the ratio of soft handover can significantly lower, and resource utilization is improved significantly.
Although be described in detail by the Some features embodiment of example to patent of the present invention, it should be appreciated by those skilled in the art, above example is only to be described, instead of in order to limit the scope of patent of the present invention.It should be appreciated by those skilled in the art, when not departing from the scope and spirit of patent of the present invention, above embodiment can be modified.The scope of patent of the present invention is limited by claims.
Claims (6)
1. an adjustable base station antenna reflection frame, it is characterized in that: comprise anchor ear (10), stay pipe (20), two base station antenna 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 the other end of transverse support bar (22) is fixedly installed reverse anchor ear (21), reverse anchor ear (21) is connected with anchor ear (10), fixing described base station antenna reflection frame main body (30) and stay pipe (20), base station antenna reflection frame main body (30) comprises metal frame (32), wire netting (33), it is inner that wire netting (33) is arranged at metal frame (32), metal frame (32) comprises the backward rectangle metal frame (321) and side direction rectangle metal frame (322) that form inwardly knuckle, backward rectangle metal frame (321) horizontal plane edge is provided with holder (31), holder comprises a pedestal and pressing plate, pedestal has cell body, cell body both sides are extended 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 base station antenna reflection frame main body (30) subtends connections.
2. a kind of adjustable base station antenna 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) in knuckle be 100 °-140 °.
3. a kind of adjustable base station antenna reflection frame as claimed in claim 1, is characterized in that: described cell body is V-type groove.
4. a kind of adjustable base station antenna 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 base station antenna 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 base station antenna reflection frame as claimed in claim 1, is characterized in that: described pressing plate perpendicular to backward rectangle metal frame (321), and is provided with the via hole of same bolt cooperation.
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| Application Number | Priority Date | Filing Date | Title |
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| 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 CN103531916A (en) | 2014-01-22 |
| CN103531916B true CN103531916B (en) | 2015-07-15 |
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| CN201310386490.9A Active CN103531916B (en) | 2013-08-30 | 2013-08-30 | Adjustable base station antenna reflection frame |
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Families Citing this family (5)
| 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 |
| 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 |
| CN108682946B (en) * | 2018-05-17 | 2019-10-25 | 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 |
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| CN201142356Y (en) * | 2008-01-09 | 2008-10-29 | 福建省邮电规划设计院有限公司 | Support lever frame of communication antenna |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2606649B2 (en) * | 1993-06-22 | 1997-05-07 | 日本電気株式会社 | Antenna reflector |
| TWI286399B (en) * | 2004-03-17 | 2007-09-01 | Arcadyan Technology Corp | Antenna apparatus having reflector |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN201142356Y (en) * | 2008-01-09 | 2008-10-29 | 福建省邮电规划设计院有限公司 | Support lever frame of communication antenna |
| 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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