CN103746755B - The calibration network of TD smart antenna - Google Patents
The calibration network of TD smart antenna Download PDFInfo
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- CN103746755B CN103746755B CN201310740147.XA CN201310740147A CN103746755B CN 103746755 B CN103746755 B CN 103746755B CN 201310740147 A CN201310740147 A CN 201310740147A CN 103746755 B CN103746755 B CN 103746755B
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- 239000002184 metal Substances 0.000 claims abstract description 49
- 229910052751 metal Inorganic materials 0.000 claims abstract description 49
- 230000005540 biological transmission Effects 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Abstract
The present invention is applicable to communication technical field, provide the calibration network of a kind of TD smart antenna, include: metal fixing plate and the calibration network wiring board being fixed on described metal fixing plate, connect on described calibration network wiring board and have decile Wilkinson power divider, described decile Wilkinson power divider end connects the multiple microstrip directional couplers from described smart antenna each passage coupled signal, it is provided with metal shielding box in the outside of described microstrip directional coupler, described metal fixing plate is provided with metal cover board, accommodating described metal shielding box and the wire chamber of described calibration network wiring board is constituted between described metal cover board and metal fixing plate.The present invention, by being closed by calibration network, plays the effect of shielding external signal interference.
Description
Technical field
The present invention relates to communication technical field, particularly relate to the calibration network of a kind of TD smart antenna.
Background technology
In recent years, mobile communication technology development, number of users also presents a rapidly rising trend, China Mobile
Carry out the construction of TD-LTE base station in this year, CHINAUNICOM and China Telecom are currently also being carried out comprehensively
The investigation of TD-LTE and test, also imply that the TD-LTE base station of following meeting enormous amount occurs, therewith
And it is the most nervous to occur as soon as site resource, in order to save the manpower and materials cost thus brought,
TD-SCDMA and TD-LTE shared antenna product is also just more and more, simultaneously also just the becoming of antenna miniaturization
Inexorable trend.Calibration network, as parts of TD smart antenna, plays communication system equipment and antenna
Pivotal role, only calibration network performance reach intended superperformance, and smart antenna could realize dynamic wave
Bundle figuration function, plays the sharpest edges of smart antenna.
The many employings of calibration network of current smart antenna are open, and structure is relatively simple, install also simple, but
There is poor anti jamming capability in it, the shortcoming such as take up room bigger, and enclosed type calibration network is anti-interference owing to having
The features such as ability is strong, arrangement is free, range is wider, but due to the directional couple of calibration network
Device coupled signal strength is less, and calibration mouth signal intensity is relatively big, the radiation signal of calibration mouth and each channel signal
Mutually cross talk effect is more more apparent, causes calibration network amplitude-phase consistency and deteriorates rapidly, and debugging difficulty
Bigger.
In summary, prior art there will naturally be inconvenience and defect in actual use, it is therefore necessary in addition
Improve.
Summary of the invention
For above-mentioned defect, it is an object of the invention to provide the calibration network conduct of a kind of TD smart antenna
With low cost, the solution of stable performance, uses the most universal modular antenna design method,
Ensure that the amplitude-phase consistency of TD-SCDMA and TD-LTE frequency range internal calibration network has the good linearity,
Both solved the drawback of closure type pseudo-crystalline lattice, the requirements at the higher level of antenna miniaturization and calibration accuracy can have been realized again.
The calibration network of a kind of TD smart antenna, includes: metal fixing plate and be fixed on described metal and fix
Calibration network wiring board on plate, connects on described calibration network wiring board and has decile Wilkinson power divider,
Described decile Wilkinson power divider end connects have from described smart antenna each passage coupled signal multiple micro-
Band directional coupler, is provided with metal shielding box in the outside of described microstrip directional coupler, and described metal is fixed
Plate is provided with metal cover board, constitutes accommodating described metal shielding box between described metal cover board and metal fixing plate
Wire chamber with described calibration network wiring board.
According to the calibration network of TD smart antenna of the present invention, each two institute of described calibration network wiring board
A described metal shielding box is fixed on the top stating microstrip directional coupler respectively.
According to the calibration network of TD smart antenna of the present invention, each input port of described calibration network is passed through
Cable is connected to each access port of described TD smart antenna；The calibration port of described calibration network passes through cable
It is connected to the calibration port of described TD smart antenna.
According to the calibration network of TD smart antenna of the present invention, described calibration network in described metal shielding box
Transmission line on wiring board is microstripline.
According to the calibration network of TD smart antenna of the present invention, described metal shielding box dual-side and described school
The described microstripline of pseudo-crystalline lattice wiring board is apart from equal.
According to the calibration network of TD smart antenna of the present invention, described input port and described TD smart antenna
The described cable of described access port be coaxial cable.
According to the calibration network of TD smart antenna of the present invention, described calibration network is TD smart antenna
Enclosed type calibration network.
According to the calibration network of TD smart antenna of the present invention, the calibration network of described TD smart antenna is fitted
For TD-SCDMA frequency range and TD-LTE frequency range.
According to the calibration network of TD smart antenna of the present invention, each described passage electricity of described smart antenna
It is connected on feeding network.
According to the calibration network of TD smart antenna of the present invention, described decile Wilkinson power divider is one point
Eight Wilkinson power dividers
The present invention, by being closed by calibration network, plays the effect of shielding external signal interference, exists simultaneously
A little can is added, by these two directional couple above calibration network each two microstrip directional coupler
Device is closed, the problem solving to prevent calibration network internal signal crosstalk.
Accompanying drawing explanation
Fig. 1 is the structural representation of the calibration network of TD smart antenna of the present invention；
Fig. 2 is the top view of the calibration network internal structure of TD smart antenna of the present invention；
Fig. 3 is the rearview of the calibration network internal structure of TD smart antenna of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality
Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein
Only in order to explain the present invention, it is not intended to limit the present invention.
Early stage version and evolution version mobile communcations system, TD-SCDMA and TD-LTE as TDD standard
By long-term co-existence, relate equally to the colocation site built-in combiner antenna of TDD standard itself.In order to improve
A phase linear degree of TD-SCDMA and TD-LTE frequency range internal calibration network, solves closure type pseudo-crystalline lattice
Drawback, can guarantee that again smart antenna is in accordance with smart antenna miniaturization and the requirements at the higher level of calibration accuracy, the present invention
Provide solution.
The calibration network of the present invention a kind of TD smart antenna, includes: metal fixing plate and be fixed on described gold
Belonging to the calibration network wiring board in fixed plate, connecting on described calibration network wiring board has decile Wilkinson
Power splitter, described decile Wilkinson power divider end connects to be had from described smart antenna each passage coupled signal
Multiple microstrip directional couplers, be provided with metal shielding box in the outside of described microstrip directional coupler, described
Metal fixing plate is provided with metal cover board, constitutes accommodating described gold between described metal cover board and metal fixing plate
Belong to shielding box and the wire chamber of described calibration network wiring board.
One specific embodiment of the present invention as shown in Figure 1 to Figure 3, uses one point of eight prestige in the present embodiment
Er Jinsen power splitter, calibration network wiring board C is fixed on metal fixing plate D, calibration network wiring board C
Each two microstrip directional coupler top fix metal shielding box B1, B2, B3, B4 respectively.At metal screen
Cover box B1, B2, B3, B4 and the metal cover board A and metal fixing plate D on calibration network wiring board C top
Airtight connection.According to diagram, the described wire chamber that the present invention is arranged at microstrip directional coupler plays tentatively
Shielding action, metal shielding box B1, B2, B3, B4 fully fix with metal cover board A, isolation
Signal with remaining microstrip directional coupler, it is to avoid crosstalk.
Further, cable is passed through in each input port 1,2,3,4,5,6,7,8 of described calibration network
It is connected to each access port of described TD smart antenna, the calibration port of the most described calibration network
CAL is connected to the calibration port of described TD smart antenna by cable.Metal shielding box B1, B2, B3,
Transmission line on B4 internal calibration network line plate C is microstripline.
It is preferred that metal shielding box B1, B2, B3, B4 dual-side and calibration network wiring board C's is micro-
Band circuit is apart from equal.Additionally, it is worthy of note, described input port 1,2,3,4,5,6,7,8
The cable of access port (not shown) to smart antenna is coaxial cable, but permissible when being embodied as
Substitute with other transmission line meeting performance requirement.
Described calibration network is the enclosed type calibration network of TD smart antenna, and its core is at described calibration net
One wire chamber of the external add-in of network, is made up of with metal cover board A metal shielding box B1, B2, B3, B4.
Calibration network wiring board C is fixed on metal fixing plate D, and each two micro-strip of calibration network wiring board C is fixed
Metal shielding box B1, B2, B3, B4 is fixed respectively to coupler section top.
The calibration network of described TD smart antenna is applicable to TD-SCDMA frequency range and TD-LTE frequency range, phase
Ratio prior art, improves isolation each other, can be applicable to TD-SCDMA frequency range and TD-LTE
Frequency range, at TD-SCDMA frequency range and TD-LTE, standing-wave ratio is less than 1.4, each access port of antenna and school
The amplitude-phase consistency of quasi-port CAL meets less than 0.7dB and 5 degree respectively, due to TD-SCDNIA with
TD-LTE uses frequency range different, so the wavelength of TD-SCDMA and TD-LTE is different, thus
Two working frequency range can be selected without replacing described TD smart antenna, it is possible to save equipment purchase cost.
Each described passage of described smart antenna is electrically connected on feeding network, and this calibration network uses one
One point of eight Wilkinson power divider of HF link plate form, its end uses 8 described microstrip directional couplings
Device is from antenna each passage coupled signal, in order to the amplitude of each passage described in reading antenna and phase information, system
Dynamic beam figuration is carried out according to acquired width phase information.
In Fig. 1,9,10,11,12,13,14,15,16 are respectively connecting to the transmission network of antenna 8 passage
On network.The input port 1,2,3,4,5,6,7,8 of each calibration network is transferred to CAL by boundling
Calibration network port, can be transferred to width phase information sampled data in calibration system be analyzed processing, protect
The calibration stability of card smart antenna.
In sum, the present invention is based on TD-SCDMA and TD-LTE smart antenna enclosed type calibration network,
Improvement internal signal transmission, low cost, amplitude-phase consistency be excellent and environmental stability advantages of higher, can help
The antenna use of TD-SCDMA, TD-LTE realizes broadband.
Certainly, the present invention also can have other various embodiments, without departing substantially from present invention spirit and the feelings of essence thereof
Under condition, those of ordinary skill in the art work as can make various corresponding change and deformation according to the present invention, but
These change accordingly and deform the protection domain that all should belong to appended claims of the invention.
Claims (9)
1. the calibration network of a TD smart antenna, it is characterised in that include: metal fixing plate is with solid
Calibration network wiring board on described metal fixing plate, connects on described calibration network wiring board and has
Wilkinson power divider, the connection of described decile Wilkinson power divider end is divided to have from described smart antenna each logical
Multiple microstrip directional couplers of road coupled signal, are provided with metal screen in the outside of described microstrip directional coupler
Covering box, described metal fixing plate is provided with metal cover board, constitutes between described metal cover board and metal fixing plate
Accommodating described metal shielding box and the wire chamber of described calibration network wiring board；
Described in each two of described calibration network wiring board, an institute is fixed on the top of microstrip directional coupler respectively
State metal shielding box.
The calibration network of TD smart antenna the most according to claim 1, it is characterised in that described calibration
Each input port of network is connected to each access port of described TD smart antenna by cable；Described calibration net
The calibration port of network is connected to the calibration port of described TD smart antenna by cable.
The calibration network of TD smart antenna the most according to claim 1, it is characterised in that described metal
In shielding box, the transmission line on described calibration network wiring board is microstripline.
The calibration network of TD smart antenna the most according to claim 3, it is characterised in that described metal
The described microstripline of shielding box dual-side and described calibration network wiring board is apart from equal.
The calibration network of TD smart antenna the most according to claim 2, it is characterised in that described input
Mouth is coaxial cable with the described cable of the described access port of described TD smart antenna.
The calibration network of TD smart antenna the most according to claim 1, it is characterised in that described calibration
Network is the enclosed type calibration network of TD smart antenna.
The calibration network of TD smart antenna the most according to claim 1, it is characterised in that described TD
The calibration network of smart antenna is applicable to TD-SCDMA frequency range and TD-LTE frequency range.
The calibration network of TD smart antenna the most according to claim 1, it is characterised in that described intelligence
Each described passage of antenna is electrically connected on feeding network.
9. according to the calibration network of TD smart antenna described in any one of claim 1～8, it is characterised in that
Described decile Wilkinson power divider is one point of eight Wilkinson power divider.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310740147.XA CN103746755B (en) | 2013-12-27 | 2013-12-27 | The calibration network of TD smart antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310740147.XA CN103746755B (en) | 2013-12-27 | 2013-12-27 | The calibration network of TD smart antenna |
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| Publication Number | Publication Date |
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| CN103746755A CN103746755A (en) | 2014-04-23 |
| CN103746755B true CN103746755B (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310740147.XA Active CN103746755B (en) | 2013-12-27 | 2013-12-27 | The calibration network of TD smart antenna |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105049133A (en) * | 2015-08-06 | 2015-11-11 | 京信通信技术(广州)有限公司 | Smart antenna calibrating device |
| CN110519977B (en) * | 2019-08-20 | 2020-09-11 | 深圳市深大唯同科技有限公司 | Calibration network device and antenna |
| CN110943293B (en) * | 2019-11-19 | 2021-05-28 | 京信通信技术(广州)有限公司 | Feed network device and antenna |
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|---|---|---|---|---|
| CN1398124A (en) * | 2001-07-20 | 2003-02-19 | 电信科学技术研究院 | Coupling calibration network and method for intelligent antenna array of radio communication system |
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| CN101005161A (en) * | 2007-01-09 | 2007-07-25 | 杨华 | Ultrathin intelligent antenna for time division system |
| CN101038985A (en) * | 2007-04-19 | 2007-09-19 | 京信通信系统（中国）有限公司 | Low windage resistance directional intelligent antenna |
| CN201130717Y (en) * | 2007-10-11 | 2008-10-08 | 摩比天线技术（深圳）有限公司 | Linear array intelligent antenna |
| CN201188677Y (en) * | 2008-02-29 | 2009-01-28 | 京信通信系统（中国）有限公司 | Calibration network apparatus for intelligent antennae |
| CN102013929A (en) * | 2010-11-26 | 2011-04-13 | 广东通宇通讯股份有限公司 | Novel intelligent antenna coupling calibration network containing RCU control circuit |
| CN102055506A (en) * | 2010-12-23 | 2011-05-11 | 西安海天天线科技股份有限公司 | Time division-synchronization code division multiple access (TD-SCDMA) and time division-long term evolution (TD-LTE) intelligent antenna multi-channel broadband calibration network |
| CN201860460U (en) * | 2010-11-26 | 2011-06-08 | 广东通宇通讯股份有限公司 | Novel smart antenna coupling calibration network containing RCU (remote control unit) control circuit |
| CN202268462U (en) * | 2011-09-30 | 2012-06-06 | 摩比天线技术（深圳）有限公司 | TD smart antenna and built-in micro-strip combiner thereof |
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2013
- 2013-12-27 CN CN201310740147.XA patent/CN103746755B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1398124A (en) * | 2001-07-20 | 2003-02-19 | 电信科学技术研究院 | Coupling calibration network and method for intelligent antenna array of radio communication system |
| CN2862363Y (en) * | 2005-06-24 | 2007-01-24 | 摩比天线技术（深圳）有限公司 | Bipolarization intelligent directional aerial for planar array |
| CN101005161A (en) * | 2007-01-09 | 2007-07-25 | 杨华 | Ultrathin intelligent antenna for time division system |
| CN101038985A (en) * | 2007-04-19 | 2007-09-19 | 京信通信系统（中国）有限公司 | Low windage resistance directional intelligent antenna |
| CN201130717Y (en) * | 2007-10-11 | 2008-10-08 | 摩比天线技术（深圳）有限公司 | Linear array intelligent antenna |
| CN201188677Y (en) * | 2008-02-29 | 2009-01-28 | 京信通信系统（中国）有限公司 | Calibration network apparatus for intelligent antennae |
| CN102013929A (en) * | 2010-11-26 | 2011-04-13 | 广东通宇通讯股份有限公司 | Novel intelligent antenna coupling calibration network containing RCU control circuit |
| CN201860460U (en) * | 2010-11-26 | 2011-06-08 | 广东通宇通讯股份有限公司 | Novel smart antenna coupling calibration network containing RCU (remote control unit) control circuit |
| CN102055506A (en) * | 2010-12-23 | 2011-05-11 | 西安海天天线科技股份有限公司 | Time division-synchronization code division multiple access (TD-SCDMA) and time division-long term evolution (TD-LTE) intelligent antenna multi-channel broadband calibration network |
| CN202268462U (en) * | 2011-09-30 | 2012-06-06 | 摩比天线技术（深圳）有限公司 | TD smart antenna and built-in micro-strip combiner thereof |
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| CN103746755A (en) | 2014-04-23 |
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Effective date of registration: 20190219 Address after: 518000 Guangming Street, Guangming New District, Shenzhen City, Guangdong Province, Genyu Road, Mobi Science and Technology Building Co-patentee after: Mobile Antenna Technologies (Shenzhen) Co., Ltd. Patentee after: Mobi Technology (Shenzhen) Co., Ltd. Co-patentee after: Mobile Antenna Technologies (Jian) Co., Ltd. Co-patentee after: MOBI Technologies (Xi'an) Co., Ltd. Address before: 518057 Mobi Building, No. 7, Langshan Road, North District of Nanshan High-tech Industrial Park, Shenzhen, Guangdong Province Co-patentee before: Mobile Antenna Technologies (Jian) Co., Ltd. Patentee before: Mobile Antenna Technologies (Shenzhen) Co., Ltd. Co-patentee before: MOBI Technologies (Xi'an) Co., Ltd. |
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