CN2755871Y - Couple calibrating network device of linear-arranging intelligent antenna array - Google Patents
Couple calibrating network device of linear-arranging intelligent antenna array Download PDFInfo
- Publication number
- CN2755871Y CN2755871Y CN 200420115221 CN200420115221U CN2755871Y CN 2755871 Y CN2755871 Y CN 2755871Y CN 200420115221 CN200420115221 CN 200420115221 CN 200420115221 U CN200420115221 U CN 200420115221U CN 2755871 Y CN2755871 Y CN 2755871Y
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Abstract
The utility model relates to a coupling and calibrating network device of a linear-arranging intelligent antenna array. A coupling and calibrating network is combined with the linear-arranging intelligent antenna array into a whole, and thus the linear-arranging intelligent antenna array has the calibration function of the coupling and calibrating network. The utility model comprises N antenna units, N couplers and a plurality of power branches/ combiner (N is larger than or equal to two), wherein the N antenna units (21) are arranged in line to form a linear antenna array; the couplers which are microstrip directional couplers are composed of two metallic parallel microstrips with close range; the N microstrip directional couplers and the power branches/combiners are manufactured on a circuit board of a calibrating and coupling network (32); the circuit board is arranged on the rear face of the radiation direction of the linear antenna array; the N microstrip directional couplers are distributed on the circuit board of the calibrating and coupling network correspondingly to the N antenna units one by one. A metallic reflection board (31) is arranged on the rear face of the circuit board of the calibrating and coupling network (32), and thus the linear antenna array realizes directional coverage.
Description
Technical field
The utility model relates to the antenna array that uses in the wireless communication system, relates to be applied in the coupling calibration networks device of a kind of smart antenna array in the mobile communication system or rather.
Background technology
In recent years, in wireless communication technology field, particularly in the wireless communication technology field of the following communications band of utilization 4GHz, the research and development of smart antenna array have entered into the practical stage.
99111350.0 provide a kind of method and apparatus that is used for the real-time calibrating intelligent antenna battle array in the Chinese invention patent technology, its method comprises: the calibration link that is connected and composed by coupled structure, feeder cable and beacon transceiver is set, coupled structure wherein becomes to be of coupled connections with the N of smart antenna array antenna element, and the beacon transceiver is connected with the baseband processor of base station by number bus; Utilize vector network analyzer that coupled structure is calibrated earlier, write down it respectively and receive and the emission transmission system; And then receive respectively the calibration and transmitting calibration.The technical scheme of the coupled structure of being advised in this patented technology has two kinds: a kind of passive network that is to use a coupler and power splitter to form is realized feed and the calibration of coupled structure to smart antenna array; Another kind be to use a symmetry on geometry, the beacon antenna that is in the antenna near-field zone comes antenna system is calibrated.
01120547.4 provide a kind of coupling calibration networks and coupling calibration steps of wireless communication system ring-shaped intelligent antenna array in the Chinese invention patent technology, this coupling calibration networks comprises N antenna element, a N coupler and several power shunt/mixers.N antenna element circularizes and is arranged on the supporter, and N coupler and several power shunt/mixers are produced on the printed circuit board (PCB), and this printed circuit board (PCB) is fixed on the supporter below.
In this patented technology, the coupling calibration comprises emission system calibration and two processes of receiving system calibration: during the emission system calibration, launch the radiofrequency signal of known power through corresponding N antenna element of N radio-frequency receiving-transmitting end difference by N sender of base station system, N corresponding coupler is coupled to power shunt/mixer with part power, and to carry out power synthetic, imports base station system through the RF calibration interface again N sender carried out the transmitting calibration processing.When receiving calibration, by the radiofrequency signal of base station system by RF calibration interface emission known power, input power shunt/mixer carries out importing N coupler after the power division, and the part power signal of coupling receives calibration from N radio-frequency receiving-transmitting end input base station system to N receiver.
Because the coupling calibration networks in this patented technology is by directly being provided with coupler near antenna element, reach the coupling of part signal energy is outputed to the purpose that base station system is handled, thereby a little less than will reducing to extremely to the signal energy that space free is propagated, even shelter is arranged near the antenna array, the signal that the thing that is blocked reflects also is extremely faint to the influence of reception antenna, the error amount that can guarantee to produce is subjected to installation environment and the problem of setting up regional impact with regard to emission and the reception calibration accuracy that has fundamentally solved base station system transmitting set and wireless receiver like this in the calibration accuracy scope.
Development along with smart antenna array development technology, development that current smart antenna array (realizes that orientation covers) from the ripe relatively annular array of technology (realizing omnidirectional's covering) towards linear array correspondingly also needs to design a kind of coupling calibration networks device that is used for the smart antenna array of linear array.
The utility model content
The purpose of this utility model is the coupling calibration networks device of a kind of linear array smart antenna array of design, be applied on the smart antenna array of linear array, make the smart antenna array of linear array the same, the calibration function that also has coupling calibration networks with the smart antenna array of annular array.
The technical scheme that realizes the utility model purpose is: a kind of coupling calibration networks device of linear array smart antenna array, be applied on the collinear array that constitutes by N antenna element linear array, and N is the positive integer more than or equal to 2, it is characterized in that:
Described coupling calibration networks device comprises a calibration coupling network circuit board, be arranged on the back of described collinear array radiation direction, comprise N coupler, the distribution of described coupler on calibration coupling network circuit board distributes correspondingly with N antenna element; Also comprise a metallic reflection plate, this metallic reflection plate is arranged on described calibration coupling network circuit board back, makes collinear array realize directed the covering.
Described calibration coupling network circuit board is provided with N connector, and connector connects antenna element and described coupler.
Described connector is radio frequency connector or passes through welding radio frequency cable formation.
Described connector is connected middle part or the top or the bottom of antenna element.
Described coupling calibrating installation also comprises power shunt/mixer, is connected with a described N coupler, and a described N coupler and power shunt/mixer all are produced on the described calibration coupling network circuit board.
Also be provided with N antenna array I/O joint and a calibration mouthful I/O joint on the described calibration coupling network circuit board, N corresponding N the radio-frequency (RF) transceiver that connects N coupler and base station system of antenna array I/O joint; A calibration mouthful I/O joint connects the RF calibration interface of power shunt/mixer and base station system.
Coupler on the described calibration coupling network circuit board is a microstrip directional coupler, constitute by two parallel little bands of in-plant metal, little antenna element of the corresponding connection of an end of being with of each microstrip directional coupler, connector of the corresponding connection of the other end of this little band, another of each microstrip directional coupler little end of being with connects power shunt/mixer, the other end ground connection of this little band.
The N that is arranged in a straight line antenna element of described collinear array uniformly-spaced or unequal interval arrange.
Described collinear array is fixed on the supporter, and this supporter and described calibration coupling network circuit board are fixed on the described metallic reflection plate.
The coupling calibration networks device of linear array smart antenna array of the present utility model, the smart antenna array of coupling calibration networks and linear array is combined into one, a microstrip directional coupler all is set near each antenna element of linear array, each microstrip directional coupler distributes in the distribution of antenna element on supporter of the distribution on the printed circuit board (PCB) with correspondence, its directional couple effect realizes by the signal coupling of two little interbands, reach the purpose of part signal energy coupled transfer being given base station system, can guarantee that also the error amount that will produce is controlled in the calibration accuracy scope.Because a plurality of identical microstrip directional couplers are produced on the printed circuit board, can guarantee the consistency of performance of a plurality of microstrip directional couplers from engineering design, help the production and the debugging of product, simplify process of producing product and improve the accuracy of calibration.
Description of drawings
Fig. 1 is the coupling calibration networks circuit theory diagrams of one 8 antenna element;
Fig. 2 is the smart antenna array calibration network device structural representation of the linear array of one 8 antenna element.
Embodiment
Be the enforcement circuit design of 8 (N=8) antenna element smart antenna array coupling calibration networks shown in Fig. 1, embodiment adopts the 1:2 power shunt/mixer of (a tunnel divides two-way or two-way unification road).
Implement circuit and comprise 8 antenna elements, 24,8 radio-frequency receiving-transmitting interfaces 25 of 23,8 radio frequency connectors of 22,7 power shunt/mixers of 21,8 identical microstrip directional couplers and a RF calibration interface 26.Each antenna element 21 connects microstrip directional coupler 22 by radio frequency connector 24, and the radio-frequency receiving-transmitting interface 25 that is connected with microstrip directional coupler 22 connects the radio-frequency (RF) transceiver of base station system.8 microstrip directional couplers 22 are connected with RF calibration interface 26 by the road/minute terminal of closing of 7 power shunt/mixers 23, and RF calibration interface 26 is connected with base station system.
The number of power shunt/mixer 23 by its along separate routes/close the way decision, embodiment adopts the power shunt/mixer of 1:2 among the figure, thereby need 7 power shunt/mixers to finish the branch of 8 road signals/close road altogether, if adopt the power shunt/mixer of 1:3, when 9 antenna elements and 9 microstrip directional couplers are set, then need 4 power shunt/mixers to finish the branch of 9 road signals/close road.
Microstrip directional coupler 22 is the parallel little bands of two in-plant metals that are produced on the printed circuit board (PCB), so have splendid properties of product consistency.Distribution on supporter should be consistent microstrip directional coupler 22 in distribution on the printed circuit board (PCB) and antenna element.A little band of each microstrip directional coupler 22, antenna element 21 of the corresponding connection of one end, the other end connects the radio-frequency receiving-transmitting end of the radio-frequency (RF) transceiver of base station system correspondence, the little band of another of each microstrip directional coupler 22, one end ground connection, the other end connect the shunt of power shunt/mixer/close terminal.
This coupling calibration networks is when doing the wireless transmitting system calibration to the base station, 8 senders of base station utilize the radiofrequency signal of radio-frequency receiving-transmitting interface 25 to the antenna element 21 emission known power of correspondence respectively, coupling by microstrip directional coupler 22, the part signal energy is coupled to power shunt/mixer 23, pass through multistage power shunt/mixer 23 then, 8 road input signals are closed the road, close the road signal and enter the base station system sender by RF calibration interface 26 and carry out computing, realize calibration wireless transmitting system.
This coupling calibration networks is when doing the wireless receiving system calibration to the base station, the radiofrequency signal of a known power of base station, and from 26 inputs of RF calibration interface, this radiofrequency signal is through multistage power shunt/mixer 23, one road radio frequency is assigned as 8 the tunnel and arrive an input of each microstrip directional coupler 22, coupling by microstrip directional coupler 22, be coupled to corresponding antenna element 21 and each wireless receiver of coupled signal being imported base station system by each radio frequency interface 25 and carry out computing, realize calibration wireless receiving system.
Referring to Fig. 2, the smart antenna array calibration network device structure of the linear array of one 8 antenna element shown in the figure.The arrangement that is in line of 8 antenna elements 21, for the antenna array of linear array, its sector covering design is directed the covering, the antenna array angle of coverage is less than 180 degree.
The antenna element 21 of 8 linear array is fixed on (not shown supporter on the supporter, antenna element can be radiant body such as column, radiant body is fixed on the supporter, it also can be microstrip circuit, microstrip circuit is attached on the supporter), 8 antenna elements 21 can be uniformly-spaced or unequal interval arrange.A calibration coupling network circuit board 32 is fixed on by antenna element 21 sides of 8 linear array, keeping parallelism concerns between the two, microstrip directional coupler 22 in the circuit shown in Figure 1 and power shunt/mixer 23 all are produced on this calibration coupling network circuit board 32, but keep each microstrip directional coupler 22 distribution on circuit board 32 to distribute (uniformly-spaced or unequal interval), realize the connection of 22 of each antenna element 21 and corresponding microstrip directional couplers with the distribution of antenna element 21 on supporter that connects separately.8 antenna array I/O joints 34 and a calibration mouthful I/O joint 35 are drawn in calibration coupling network circuit board 32 bottoms, this antenna array I/O joint 34 can be that radio-frequency receiving-transmitting interface 25 also can be connected with base station system by direct welding cable, and this calibration mouthful I/O joint 35 can be that RF calibration interface 26 also can be connected with base station system by direct welding cable.
Fan antenna battle array for linear array, the antenna array angle of coverage is the orientation covering less than 180 degree, so the back of antenna array also should be provided with metallic reflection plate 31, this metallic reflection plate 31 plays the project installation fixation of back to isolation, fixed antenna unit support and entire antenna battle array.Calibration coupling network circuit board 32 is installed on the metallic reflection plate 31, links by cable or connector and each antenna element.
33 is connectors of calibration coupling network and antenna element among the figure, can be radio frequency connector 24, promptly utilizes radio frequency connector 24 directly to connect, and also can be cable connector, promptly adopts welding cable to connect.Link position can be at the middle part of antenna element 21 or the top or the bottom (as shown in FIG.) of antenna element 21.
The coupling calibration networks device of the linear array smart antenna array of illustrated embodiment, the smart antenna array of linear array, calibration coupling network circuit board 32 and 31 of metallic reflection plates are in a parallel set from front to back in regular turn, promptly calibrate coupling network circuit board 32 and be arranged on the back of the smart antenna array radiation direction of linear array, metallic reflection plate 31 is arranged on calibration coupling network circuit board 32 back, makes collinear array realize directed the covering.
The utility model is according to the actual conditions of the smart antenna array of linear array, rethink the arrangement of coupling calibration networks circuit board and the installation site of calibration network, design a kind of coupling calibration networks device of smart antenna array of suitable line array arrangement, be used on the smart antenna array of linear array, make the smart antenna array of linear array identical, coupling calibration function with coupling calibration networks with the smart antenna array of annular array.
The foregoing description is the coupling calibration networks device of the smart antenna array of 8 antenna elements, also can design the coupling calibration networks device (N 〉=2) of smart antenna array of the linear array of 2 antenna elements, 4 antenna elements, 12 antenna elements etc. by identical principle.
Claims (10)
1. the coupling calibration networks device of a linear array smart antenna array is applied on the collinear array that is made of N antenna element linear array, and N is the positive integer more than or equal to 2, it is characterized in that:
Described coupling calibration networks device comprises a calibration coupling network circuit board, be arranged on the back of described collinear array radiation direction, comprise N coupler, the distribution of described coupler on calibration coupling network circuit board distributes correspondingly with N antenna element; Also comprise a metallic reflection plate, this metallic reflection plate is arranged on described calibration coupling network circuit board back, makes collinear array realize directed the covering.
2. device according to claim 1 is characterized in that: described calibration coupling network circuit board is provided with N connector, and connector connects antenna element and described coupler.
3. device according to claim 2 is characterized in that: described connector is radio frequency connector or passes through welding radio frequency cable formation.
4. device according to claim 2 is characterized in that: described connector is connected middle part or the top or the bottom of antenna element.
5. device according to claim 1, it is characterized in that: described coupling calibrating installation also comprises power shunt/mixer, be connected with a described N coupler, a described N coupler and power shunt/mixer all are produced on the described calibration coupling network circuit board.
6. device according to claim 5, it is characterized in that: also be provided with N antenna array I/O joint and a calibration mouthful I/O joint on the described calibration coupling network circuit board, N corresponding N the radio-frequency (RF) transceiver that connects N coupler and base station system of antenna array I/O joint; A calibration mouthful I/O joint connects the RF calibration interface of power shunt/mixer and base station system.
7. device according to claim 6, it is characterized in that: the coupler on the described calibration coupling network circuit board is a microstrip directional coupler, constitute by two parallel little bands of in-plant metal, little antenna element of the corresponding connection of an end of being with of each microstrip directional coupler, connector of the corresponding connection of the other end of this little band, another of each microstrip directional coupler little end of being with connects power shunt/mixer, the other end ground connection of this little band.
8. device according to claim 1 is characterized in that: the N that is arranged in a straight line antenna element of described collinear array uniformly-spaced or unequal interval arrange.
9. device according to claim 1 is characterized in that: described collinear array is fixed on the supporter, and this supporter and described calibration coupling network circuit board are fixed on the described metallic reflection plate.
10. device according to claim 9 is characterized in that: described antenna element be fixed on the supporter radiant body or attached to the microstrip circuit on the supporter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115221 CN2755871Y (en) | 2004-11-17 | 2004-11-17 | Couple calibrating network device of linear-arranging intelligent antenna array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115221 CN2755871Y (en) | 2004-11-17 | 2004-11-17 | Couple calibrating network device of linear-arranging intelligent antenna array |
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| Publication Number | Publication Date |
|---|---|
| CN2755871Y true CN2755871Y (en) | 2006-02-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200420115221 Expired - Lifetime CN2755871Y (en) | 2004-11-17 | 2004-11-17 | Couple calibrating network device of linear-arranging intelligent antenna array |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1832258B (en) * | 2006-03-09 | 2010-05-12 | 摩比天线技术（深圳）有限公司 | Calibration network of intelligent antenna |
| CN101005161B (en) * | 2007-01-09 | 2011-01-12 | 广东盛路通信科技股份有限公司 | ultrathin intelligent antenna for time division system |
| CN102035076A (en) * | 2009-09-29 | 2011-04-27 | 大唐移动通信设备有限公司 | Antenna calibration system and method |
| 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 |
| CN1921224B (en) * | 2006-09-12 | 2011-12-07 | 京信通信技术(广州)有限公司 | Field calibrating apparatus for directional intelligent aerial array |
| CN103746193A (en) * | 2013-12-13 | 2014-04-23 | 京信通信技术(广州)有限公司 | Intelligent antenna and calibration device thereof |
| CN103856275A (en) * | 2013-12-11 | 2014-06-11 | 京信通信系统（广州）有限公司 | Antenna and calibration device thereof |
| CN106443416A (en) * | 2016-11-18 | 2017-02-22 | 中国电子科技集团公司第二十九研究所 | Method and apparatus for realizing self-calibration of microwave performance of multi-layer circuit board |
| EP3214700A4 (en) * | 2014-10-28 | 2017-11-01 | ZTE Corporation | Intelligent antenna device |
| CN109450565A (en) * | 2018-11-27 | 2019-03-08 | 京信通信系统（中国）有限公司 | Calibrate monitoring device and antenna system |
| CN110278012A (en) * | 2019-06-30 | 2019-09-24 | 瑞声科技(新加坡)有限公司 | Antenna calibration network unit, antenna calibration network and mimo antenna |
| CN110994151A (en) * | 2019-12-11 | 2020-04-10 | 广东盛路通信科技股份有限公司 | FDD multi-frequency array and TDD intelligent antenna array fusion method and antenna array |
| WO2020107361A1 (en) * | 2018-11-30 | 2020-06-04 | 华为技术有限公司 | Calibration method and apparatus for radio frequency channel |
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2004
- 2004-11-17 CN CN 200420115221 patent/CN2755871Y/en not_active Expired - Lifetime
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1832258B (en) * | 2006-03-09 | 2010-05-12 | 摩比天线技术（深圳）有限公司 | Calibration network of intelligent antenna |
| CN1921224B (en) * | 2006-09-12 | 2011-12-07 | 京信通信技术(广州)有限公司 | Field calibrating apparatus for directional intelligent aerial array |
| CN101005161B (en) * | 2007-01-09 | 2011-01-12 | 广东盛路通信科技股份有限公司 | ultrathin intelligent antenna for time division system |
| CN102035076B (en) * | 2009-09-29 | 2014-06-04 | 电信科学技术研究院 | Antenna calibration system and method |
| CN102035076A (en) * | 2009-09-29 | 2011-04-27 | 大唐移动通信设备有限公司 | Antenna calibration system and method |
| 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 |
| CN102055506B (en) * | 2010-12-23 | 2013-11-20 | 西安三元达海天天线有限公司 | Time division-synchronization code division multiple access (TD-SCDMA) and time division-long term evolution (TD-LTE) intelligent antenna multi-channel broadband calibration network |
| CN103856275B (en) * | 2013-12-11 | 2016-07-06 | 京信通信系统（广州）有限公司 | Antenna and calibrating installation thereof |
| CN103856275A (en) * | 2013-12-11 | 2014-06-11 | 京信通信系统（广州）有限公司 | Antenna and calibration device thereof |
| CN103746193B (en) * | 2013-12-13 | 2016-07-06 | 京信通信技术(广州)有限公司 | Smart antenna and calibrating installation thereof |
| CN103746193A (en) * | 2013-12-13 | 2014-04-23 | 京信通信技术(广州)有限公司 | Intelligent antenna and calibration device thereof |
| EP3214700A4 (en) * | 2014-10-28 | 2017-11-01 | ZTE Corporation | Intelligent antenna device |
| JP2017539134A (en) * | 2014-10-28 | 2017-12-28 | ゼットティーイー コーポレーションＺｔｅ Ｃｏｒｐｏｒａｔｉｏｎ | Smart antenna device |
| CN106443416A (en) * | 2016-11-18 | 2017-02-22 | 中国电子科技集团公司第二十九研究所 | Method and apparatus for realizing self-calibration of microwave performance of multi-layer circuit board |
| CN106443416B (en) * | 2016-11-18 | 2018-12-25 | 中国电子科技集团公司第二十九研究所 | One kind being able to achieve multilayer circuit board microwave property method for self-calibrating and device |
| CN109450565A (en) * | 2018-11-27 | 2019-03-08 | 京信通信系统（中国）有限公司 | Calibrate monitoring device and antenna system |
| WO2020107361A1 (en) * | 2018-11-30 | 2020-06-04 | 华为技术有限公司 | Calibration method and apparatus for radio frequency channel |
| CN110278012A (en) * | 2019-06-30 | 2019-09-24 | 瑞声科技(新加坡)有限公司 | Antenna calibration network unit, antenna calibration network and mimo antenna |
| CN110994151A (en) * | 2019-12-11 | 2020-04-10 | 广东盛路通信科技股份有限公司 | FDD multi-frequency array and TDD intelligent antenna array fusion method and antenna array |
| CN110994151B (en) * | 2019-12-11 | 2023-08-22 | 广东盛路通信科技股份有限公司 | FDD multi-frequency array and TDD intelligent antenna array fusion method and antenna array |
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