CN102683810A - Indoor multiple input multiple output (MIMO) antenna - Google Patents
Indoor multiple input multiple output (MIMO) antenna Download PDFInfo
- Publication number
- CN102683810A CN102683810A CN2012101174779A CN201210117477A CN102683810A CN 102683810 A CN102683810 A CN 102683810A CN 2012101174779 A CN2012101174779 A CN 2012101174779A CN 201210117477 A CN201210117477 A CN 201210117477A CN 102683810 A CN102683810 A CN 102683810A
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- pcb board
- antenna
- reflecting plate
- radiator
- metal patch
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Abstract
The invention discloses an indoor multiple input multiple output (MIMO) antenna which comprises an antenna cover, a radiator and a reflecting plate. The radiator is arranged on the reflecting plate, the antenna cover is arranged above the radiator and surrounds the radiator, the radiator comprises a metal patch and two half-wavelength dipoles, the half-wavelength dipoles are respectively printed on two printed circuit boards (PCBs) which are placed in mutual orthogonal cross mode, and the metal patch and the PCBs placed in orthogonal cross mode are evenly distributed on a longitudinal central line of the reflecting plate. The MIMO antenna can replace a wall-mounted antenna in an existing network directly, can support a double-channel device of time division-synchronization code division multiple access (TD-SCDMA), wireless local area network (WLAN) and long term evolution (LTE) frequency band, saves a large amount of resources for smooth transition of an indoor coverage system, and simultaneously provides more selection schemes for a future network integration scheme. The MIMO antenna is simple in structure, easy to assemble and debug, low in cost and favorable for mass production.
Description
Technical field
The present invention relates to a kind of mobile communication antenna, relate in particular to a kind of MIMO antenna of mobile communication indoor distribution system.
Background technology
Along with the fast development of wireless communication technology, the mobile subscriber to the capacity of radio communication and quality require increasingly high, yet there are problems such as multipath fading, spectrum congestion, noise jamming in present wireless channel, has influenced the raising of data rate greatly.
Multiple-input and multiple-output (MIMO) antenna technology can be under the condition that does not increase bandwidth and transmitting power; Improve the quality and the data rate of radio communication exponentially, especially indoor stable, abundant multipath wireless environment is very beneficial for using the MIMO multi-antenna technology.
The wide frequency antenna that can satisfy a plurality of networks simultaneously will satisfy the demand of operator undoubtedly to greatest extent, and existing indoor MIMO antenna frequency band is narrower, causes its application to receive certain restriction.
Summary of the invention
The purpose of this invention is to provide a kind of novel indoor MIMO antenna, cover needs with the wideband that satisfies chamber subsystems such as GSM, CDMA, CDMA2000, TD-SCDMA, WALA, LTE.
Technical scheme of the present invention is: a kind of indoor MIMO antenna; Its difference is: it comprises radome, radiant body, reflecting plate; Said radiant body is arranged on the reflecting plate; Radome is located at the radiant body top and radiant body is enclosed in its inboard; Said radiant body comprises a metal patch and two half-wave doublets, and said half-wave doublet is printed on respectively on the pcb board of two mutually orthogonals intersections placement, and the pcb board that said metal patch, quadrature intersection are placed all is distributed on the longitudinal centre line of reflecting plate.
By above scheme, said pcb board is made up of first pcb board and second pcb board, the center of top fluting of first pcb board, the bottom central fluting of second pcb board.
By above scheme, said pcb board vertically is positioned on the said reflecting plate.
By above scheme, vertical arrangement of said metal patch, the said reflecting plate in pcb board edge, the geometric center of said metal patch, pcb board all is positioned on the center line of reflecting plate.
Its operation principle is: the probe of falling L carries out feed to metal patch, forms the radiating element of a perpendicular polarization, and its working frequency range is 806-960MHz; Two half-wave doublets are printed on respectively on two pcb boards, and two pcb board quadratures intersect to be placed, and forms one ± 45 ° dual-polarization radiating units, and its working frequency range is 1710-2700MHz; Metal patch and two pcb boards are positioned on the longitudinal centre line of reflecting plate, to realize the symmetry of horizontal radiation pattern.
MIMO antenna provided by the invention has the following advantages and good effect:
1, two half-wave doublets are printed on two pcb boards, two pcb board quadratures intersect to be placed, and so, has improved the cross polarization ratio and the isolation index of antenna;
2, this antenna working band is wide, has covered whole mobile communication frequency range, has satisfied the demand of operator to greatest extent;
3, this antenna can not only directly substitute the wall aerial in the existing network, and supports binary channels equipment in TD-SCDMA, WLAN, LTE frequency range, and this has saved ample resources for seamlessly transitting of indoor covering system;
4, this antenna can satisfy the needs of indoor covering systems such as GSM900, GSM1800, CDMA, CDMA2000, WCDMA, TD-SCDMA, WLAN, LTE, for later many nets integration program provides more more options;
5, this antenna structure simple, be easy to assembling and debugging, with low cost, help producing in batches.
Description of drawings
Fig. 1 is the structural representation of present embodiment.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the present invention is done further detailed explanation.
Fig. 1 is the structural representation of the MIMO antenna of embodiment; As can be seen from Figure 1; A kind of indoor MIMO antenna; It comprises radome 60, radiant body, reflecting plate 10, fastening seat 50, plastic support post 51; Radiant body is arranged on the reflecting plate 10, and radome 60 is located at radiant body top and radiant body is enclosed in its inboard, and said radiant body comprises a metal patch 20, first half-wave doublet 30, second half-wave doublet 31; First half-wave doublet 30, second half-wave doublet 31 are printed on two mutually orthogonals respectively and intersect on the pcb board of placing, and said metal patch 20, quadrature intersect the pcb board of placing and all be distributed on the longitudinal centre line of reflecting plate 10.
Preferably, metal patch 20 is 100-200mm with the center distance of intersecting between the pcb board assembly.
Concrete, said pcb board is made up of first pcb board 40 and second pcb board 41, the center of top fluting of first pcb board 40, the bottom central fluting of second pcb board 41, two pcb board quadratures intersect to be placed, by fastening seat 50 vertical fixing on reflecting plate 10.
Concrete, said pcb board vertically is positioned on the said reflecting plate 10.
Concrete, said metal patch 20, pcb board be along vertical arrangement of said reflecting plate 10, and the geometric center of said metal patch 20, pcb board all is positioned on the center line of reflecting plate 10.
Wherein, metal patch 20 carries out feed by the probe of falling L, and metal patch and the said probe of falling L are fixed on the reflecting plate by plastic support post 51.
Said metal patch antenna is identical with existing method with the method for designing and the feed method of printing doublet antenna.
All any modifications of within spirit of the present invention and principle, being done, be equal to replacement and modification etc., all should be included within protection scope of the present invention.
Claims (4)
1. indoor MIMO antenna; It is characterized in that: it comprises radome, radiant body, reflecting plate; Said radiant body is arranged on the reflecting plate, and radome is located at the radiant body top and radiant body is enclosed in its inboard, and said radiant body comprises a metal patch and two half-wave doublets; Said half-wave doublet is printed on respectively on the pcb board of two mutually orthogonals intersections placement, and the pcb board that said metal patch, quadrature intersection are placed all is distributed on the longitudinal centre line of reflecting plate.
2. by the described indoor MIMO antenna of claim 1, it is characterized in that: said pcb board is made up of first pcb board and second pcb board, the center of top fluting of first pcb board, the bottom central fluting of second pcb board.
3. by the described indoor MIMO antenna of claim 1, it is characterized in that: said pcb board vertically is positioned on the said reflecting plate.
4. by claim 1 or 2 or 3 described indoor MIMO antennas, it is characterized in that: vertical arrangement of said metal patch, the said reflecting plate in pcb board edge, the geometric center of said metal patch, pcb board all is positioned on the center line of reflecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101174779A CN102683810A (en) | 2012-04-20 | 2012-04-20 | Indoor multiple input multiple output (MIMO) antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101174779A CN102683810A (en) | 2012-04-20 | 2012-04-20 | Indoor multiple input multiple output (MIMO) antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102683810A true CN102683810A (en) | 2012-09-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101174779A Pending CN102683810A (en) | 2012-04-20 | 2012-04-20 | Indoor multiple input multiple output (MIMO) antenna |
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| CN (1) | CN102683810A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140621A (en) * | 2015-09-10 | 2015-12-09 | 佛山市粤海信通讯有限公司 | Ultrathin-type direction board antenna |
| CN109428148A (en) * | 2017-08-30 | 2019-03-05 | 比亚迪股份有限公司 | Mimo antenna |
| CN111740211A (en) * | 2019-03-25 | 2020-10-02 | 华为技术有限公司 | Antenna housing and base station antenna |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2401997Y (en) * | 1999-10-15 | 2000-10-18 | 朱劲松 | Double frequency band top sucked antenna |
| CN201797043U (en) * | 2010-07-14 | 2011-04-13 | 中国移动通信集团设计院有限公司 | Dual-polarization ceiling antenna |
| CN201946743U (en) * | 2011-01-06 | 2011-08-24 | 广东盛华德通讯科技股份有限公司 | Broadband indication board antenna |
| CN202013933U (en) * | 2011-03-30 | 2011-10-19 | 中国移动通信集团设计院有限公司 | Multi-port indoor antenna |
| CN202196856U (en) * | 2011-08-17 | 2012-04-18 | 广东盛华德通讯科技股份有限公司 | Dual-polarization feed source |
-
2012
- 2012-04-20 CN CN2012101174779A patent/CN102683810A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2401997Y (en) * | 1999-10-15 | 2000-10-18 | 朱劲松 | Double frequency band top sucked antenna |
| CN201797043U (en) * | 2010-07-14 | 2011-04-13 | 中国移动通信集团设计院有限公司 | Dual-polarization ceiling antenna |
| CN201946743U (en) * | 2011-01-06 | 2011-08-24 | 广东盛华德通讯科技股份有限公司 | Broadband indication board antenna |
| CN202013933U (en) * | 2011-03-30 | 2011-10-19 | 中国移动通信集团设计院有限公司 | Multi-port indoor antenna |
| CN202196856U (en) * | 2011-08-17 | 2012-04-18 | 广东盛华德通讯科技股份有限公司 | Dual-polarization feed source |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105140621A (en) * | 2015-09-10 | 2015-12-09 | 佛山市粤海信通讯有限公司 | Ultrathin-type direction board antenna |
| CN105140621B (en) * | 2015-09-10 | 2018-09-04 | 佛山市粤海信通讯有限公司 | Ultrathin indication board antenna |
| CN109428148A (en) * | 2017-08-30 | 2019-03-05 | 比亚迪股份有限公司 | Mimo antenna |
| CN109428148B (en) * | 2017-08-30 | 2020-03-31 | 比亚迪股份有限公司 | MIMO antenna |
| CN111740211A (en) * | 2019-03-25 | 2020-10-02 | 华为技术有限公司 | Antenna housing and base station antenna |
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Application publication date: 20120919 |