CN2547016Y - Double-polarisation base station antenna of special reflection plate - Google Patents
Double-polarisation base station antenna of special reflection plate Download PDFInfo
- Publication number
- CN2547016Y CN2547016Y CN 02262501 CN02262501U CN2547016Y CN 2547016 Y CN2547016 Y CN 2547016Y CN 02262501 CN02262501 CN 02262501 CN 02262501 U CN02262501 U CN 02262501U CN 2547016 Y CN2547016 Y CN 2547016Y
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- Prior art keywords
- antenna
- base station
- station antenna
- division board
- special
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Abstract
Disclosed is a special dual polarized base station antenna for special baffle board. The antenna is composed of soleplate and one pair of division boards. The device is characterized in that the one pair of division boards is fixed on the soleplate which is in parallel with the axes arranged with doublet on the soleplate and the division boards are vertical with each other; the insulation board is composed of the angle aluminum. The baffle board and diffraction of the electric wave can be controlled to improve the front-to-rear ratio of the antenna and insulation performance to attain the purpose of improving the performance of the dual polarized base station antenna.
Description
Technical field:
This practical technique relates to field of antenna, relates in particular to a kind of Bipolarization antenna for base station that is used for cell mobile communication systems.
Prior art:
Be extensive use of Bipolarization antenna for base station in cell mobile communication systems, this antenna adopts diversity receiving technology to solve serious path fading problem.
This antenna adopts dipole and the reflecting plate by two groups of quadratures to be constituted.One group of dipole is+45 ° of polarization, and another group is-45 ° of polarization.Reflecting plate is made of aluminium sheet usually, and this antenna has two feed port, and one connects+45 ° of dipoles, and another connects-45 ° of dipoles.Because the electromagnetic field of two groups of dipole generations is coupled mutually, thereby antenna performance is exerted an influence.The power of coupling is called " isolation ", and the big more antenna performance that shows of isolation is good more.The technical indicator of isolation is generally 30dB.
Another index of Bipolarization antenna for base station is " front and back than ", and it represents that this antenna is forwards to the ratio of the energy of the energy of radiation and backward directions radiation.Ratio is big more, represents that this antenna is more little to the interference that other base stations produce, and antenna performance is good more, and the technical indicator of front and back ratio is generally 30dB.These two indexs are all relevant with the structure of antenna, and are special relevant with the structure of reflecting plate.Reflecting plate is generally simple bathtub construction, and measured result shows that the degree of coupling only is 31dB, and the front and back ratio is 28dB, and antenna performance is not ideal enough.
Technology contents:
The utility model is exactly to increase division board on the basis of former reflecting plate, to reach the purpose that improves the degree of coupling and improve the front and back ratio.
At first, by the analysis of dual polarization dipole electromagnetic field is found to increase the near-field structure that division board can obviously improve antenna, produce reflected wave, when this reflected wave and primary radiation ripple, amplitude is close, and when phase place was opposite, synthetic then reduced, so not only reduced mutual coupling and reduced backward radiation simultaneously, so just improved the degree of coupling and improved front and back than two indexs.
Secondly,, change the shape of division board, highly reach position on former reflecting plate, measure its influence, find out the optimum size of division board the degree of coupling and front and back ratio by test.Promptly constitute the new type reflection plate by optimum size division board and the combination of former reflecting plate, this reflecting plate can make the isolation of Bipolarization antenna for base station bring up to 37dB, and the front and back ratio is brought up to 30.5dB, makes these two technical indicators of antenna meet or exceed requirement.
Description of drawings:
Fig. 1 is the structural representation of the Bipolarization antenna for base station of a kind of special reflecting plate described in the utility model.
Fig. 2 is the A-A cut-away view of the Bipolarization antenna for base station of a kind of special reflecting plate shown in Fig. 1.1. base plate 2. division boards 3. dipoles
Embodiment:
As can be seen from Figure 1, the Bipolarization antenna for base station of a kind of special reflecting plate described in the utility model is made up of base plate 1 and a pair of division board 2, it is characterized in that: a pair of division board 2 is installed on described base plate 1, parallel axes and position that dipole is installed on division board 2 and the base plate 1 are symmetrical mutually, this division board 2 is made up of angle aluminium, by adjusting the physical dimension of angle aluminium, the reflection and the diffraction of control electric wave, to improve antenna front and back ratio and isolation performance, make its front and back than bringing up to 30.5dB by 28dB, isolation is brought up to 37dB by 31dB.
Claims (2)
1. the Bipolarization antenna for base station of a special reflecting plate is made up of base plate (1) and a pair of division board (2), it is characterized in that: described division board (2) is fixed on the base plate (1), and division board (2) is symmetrical with parallel axes and position that base plate (1) is gone up the installation dipole.
2. the Bipolarization antenna for base station of a kind of special reflecting plate according to claim 1 is characterized in that: division board (2) is to be made by angle aluminium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02262501 CN2547016Y (en) | 2002-06-13 | 2002-06-13 | Double-polarisation base station antenna of special reflection plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02262501 CN2547016Y (en) | 2002-06-13 | 2002-06-13 | Double-polarisation base station antenna of special reflection plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2547016Y true CN2547016Y (en) | 2003-04-23 |
Family
ID=33729049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02262501 Expired - Fee Related CN2547016Y (en) | 2002-06-13 | 2002-06-13 | Double-polarisation base station antenna of special reflection plate |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2547016Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100353611C (en) * | 2004-11-24 | 2007-12-05 | 京信通信系统（广州）有限公司 | High front-and-back ratio directional station antenna |
| CN102790284A (en) * | 2012-07-02 | 2012-11-21 | 广东通宇通讯股份有限公司 | Antenna device with multiple boundaries and reflecting board thereof |
| WO2013064093A1 (en) * | 2011-11-02 | 2013-05-10 | 华为技术有限公司 | Reflection plate, antenna, base station and communication system |
| CN104157965A (en) * | 2014-09-01 | 2014-11-19 | 镇江中安通信科技有限公司 | Double-side-edge high-frequency planar antenna |
| CN104201461A (en) * | 2014-09-01 | 2014-12-10 | 镇江中安通信科技有限公司 | Double-side low-frequency planar antenna |
-
2002
- 2002-06-13 CN CN 02262501 patent/CN2547016Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100353611C (en) * | 2004-11-24 | 2007-12-05 | 京信通信系统（广州）有限公司 | High front-and-back ratio directional station antenna |
| WO2013064093A1 (en) * | 2011-11-02 | 2013-05-10 | 华为技术有限公司 | Reflection plate, antenna, base station and communication system |
| CN102790284A (en) * | 2012-07-02 | 2012-11-21 | 广东通宇通讯股份有限公司 | Antenna device with multiple boundaries and reflecting board thereof |
| CN104157965A (en) * | 2014-09-01 | 2014-11-19 | 镇江中安通信科技有限公司 | Double-side-edge high-frequency planar antenna |
| CN104201461A (en) * | 2014-09-01 | 2014-12-10 | 镇江中安通信科技有限公司 | Double-side low-frequency planar antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |