CN105790860B - Antenna coupling calibration system - Google Patents
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- CN105790860B CN105790860B CN201410828787.0A CN201410828787A CN105790860B CN 105790860 B CN105790860 B CN 105790860B CN 201410828787 A CN201410828787 A CN 201410828787A CN 105790860 B CN105790860 B CN 105790860B
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- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
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Abstract
The invention discloses an antenna coupling calibration system, which comprises a back plate and a plurality of integrally designed antenna coupling calibration modules connected with the back plate, wherein the antenna coupling calibration modules comprise: the antenna arrays are used for receiving and transmitting radio frequency signals; the feed network is connected with the antenna array and used for transmitting the radio-frequency signals transmitted and received by the antenna array; the coupling calibration network is connected with the feed network and the back plate and used for coupling the received and transmitted radio frequency signals and returning the coupled radio frequency signals to the antenna array through the feed network; and transmitting the received and transmitted radio frequency signal to the back plate. The antenna coupling calibration system provided by the invention has the advantages that the coupling calibration network and the antenna are subjected to modular design, the shared scene of the co-construction of the base station sites is met, and the diversified requirements of the antenna application are met, so that the requirements of operators are better met, and the maintenance cost is reduced.
Description
Technical Field
The invention relates to the field of communication, in particular to an antenna coupling calibration system.
Background
The base station antenna is an important component of a mobile communication wireless access system, the development of the base station antenna is influenced by various factors, and particularly, the base station layout is more and more dense due to the continuous expansion of the mobile communication network towards the width and the depth. The advent of the 4G communication era means that operators need to build more base stations. On one hand, the continuous development of mobile communication and the continuous release of new systems put forward new requirements on base station antennas, and meanwhile, operators continuously increase the investment of network construction and construct more base stations in order to provide higher-quality network services; on the other hand, people's environmental awareness is continuously strengthened, and city construction advances towards the directions of ' ecological cities ' and ' green cities ', so that new challenges are faced to the base station construction and the base station antenna development.
With the increasing of network coverage and capacity, the demand of operators for base station sites is more and more urgent, but the acquisition is more and more difficult. Although obtaining part of new base station sites by means of co-construction and sharing has become a common vision of operators, there are some problems to be solved in the practical operation level. Therefore, it is desirable to design an antenna system capable of meeting the diversified requirements.
Disclosure of Invention
The invention mainly aims to provide an antenna coupling calibration system, which aims to realize the purpose of sharing an antenna by a base station in multi-channel, multi-working frequency band and multi-working mode by modularizing an antenna and a coupling calibration network through the integrated design of the antenna and the coupling calibration network, thereby meeting the diversified requirements of antenna application.
In order to achieve the above object, the present invention provides an antenna coupling calibration system, which includes a back plate and a plurality of integrally designed antenna coupling calibration modules connected to the back plate, wherein the antenna coupling calibration modules include:
the antenna arrays are used for receiving and transmitting radio frequency signals;
the feed network is connected with the antenna array and used for transmitting the radio-frequency signals transmitted and received by the antenna array;
the coupling calibration network is connected with the feed network and the back plate and used for coupling the received and transmitted radio frequency signals and returning the coupled radio frequency signals to the antenna array through the feed network; and transmitting the received and transmitted radio frequency signal to the back plate.
Preferably, the antenna coupling calibration module further includes a dielectric plate, and the antenna array and the coupling calibration network are disposed on the same dielectric plate.
Preferably, the antenna array and the coupling calibration network are respectively arranged on the front surface and the back surface of the dielectric plate, via holes are arranged on the dielectric plate, and the antenna array and the coupling calibration network are correspondingly connected through the via holes.
Preferably, the middle layer of the dielectric plate is provided with a ground layer connected with the coupling calibration network and the antenna array, and a metal reflector connected with the antenna array.
Preferably, the number, type, shape and spacing of the antenna elements in the antenna coupling calibration module are the same.
Preferably, the coupling calibration network further comprises:
the microstrip directional coupler is used for coupling the radio frequency signals transmitted by the back plate and the antenna array;
the branching combiner is used for dividing one path of radio frequency signals transmitted by the backboard into a plurality of paths of radio frequency signals; and synthesizing the multiple radio frequency signals transmitted by the antenna array into one radio frequency signal.
Preferably, the antenna coupling calibration system further includes a first radio frequency connector and a second radio frequency connector, the backplane is connected to the antenna coupling calibration module via the first radio frequency connector, and the backplane is connected to the base station via the second radio frequency connector.
Preferably, the microstrip directional coupler includes a first microstrip line and a second microstrip line, one end of the first microstrip line is correspondingly connected to the antenna array via the via hole, and the other end of the first microstrip line is connected to the first radio frequency connector; one end of the second microstrip line is connected with a matching load or the ground, and the other end of the second microstrip line is connected with the shunt combiner.
Preferably, the antenna coupling calibration module further comprises:
and the antenna partition plate is used for improving the isolation between the antenna elements and the strength of the antenna cover.
Preferably, the backplane includes a combiner-divider network and a shielding cavity, and the combiner-divider network is disposed in the shielding cavity and configured to improve amplitude and phase consistency.
The antenna coupling calibration system provided by the invention comprises a back plate and a plurality of integrally designed antenna coupling calibration modules connected with the back plate, wherein the antenna coupling calibration modules comprise: the antenna arrays are used for receiving and transmitting radio frequency signals; the feed network is connected with the antenna array and used for transmitting the radio-frequency signals transmitted and received by the antenna array; the coupling calibration network is connected with the feed network and the back plate and used for coupling the received and transmitted radio frequency signals and returning the coupled radio frequency signals to the antenna array through the feed network; and transmitting the received and transmitted radio frequency signal to the back plate. The antenna coupling calibration system provided by the invention has the advantages that the coupling calibration network and the antenna are subjected to modular design, the shared scene of the co-construction of the base station sites is met, and the diversified requirements of the antenna application are met, so that the requirements of operators are better met, and the maintenance cost is reduced.
Drawings
FIG. 1 is a system diagram of an embodiment of an antenna coupling calibration system of the present invention;
FIG. 2 is a schematic top view of an antenna coupling calibration system according to an embodiment of the present invention;
FIG. 3 is a schematic side view of a three-dimensional structure of an antenna coupling calibration system according to an embodiment of the present invention;
fig. 4 is a schematic layout diagram of a first embodiment of the antenna array of fig. 1;
fig. 5 is a schematic layout diagram of a second embodiment of the antenna array of fig. 1;
FIG. 6 is a schematic layout diagram of a first embodiment of the coupling calibration network of FIG. 1;
FIG. 7 is a schematic layout view of a first embodiment of the backplate of FIG. 1;
FIG. 8 is a layout diagram of a second embodiment of the backplate shown in FIG. 1.
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The present invention provides an antenna coupling calibration system, referring to fig. 1, fig. 1 is a system block diagram of an embodiment of the antenna coupling calibration system of the present invention, in an embodiment, the antenna coupling calibration system includes a backplane 100 and a plurality of integrally designed antenna coupling calibration modules 200 connected to the backplane 100, and the antenna coupling calibration modules 200 include:
a plurality of antenna elements 230 for transceiving radio frequency signals;
a feed network 220, connected to the antenna element 230, for transmitting the radio frequency signal received and transmitted by the antenna element 230;
a coupling calibration network 210 connected to the feeding network 220 and the backplane 100, and configured to couple the received and transmitted radio frequency signal and return the coupled radio frequency signal to the antenna array 230 through the feeding network 220; and transmits the received and transmitted rf signal to the backplane 100.
In the present embodiment, only an example of two antenna module antenna coupling calibration modules 200 is depicted, and in a specific antenna layout, the number of the antenna coupling calibration modules 200 is not limited thereto, and may be one, or may be more than two.
In this embodiment, each antenna coupling calibration module 200 includes two antenna elements 230, a feeding network 220 and a coupling calibration network 210, which are integrated in the same module. One or more antenna elements 230 may be provided. The spatial layout of the antenna elements 230 may be arranged in three-dimensional space according to actual design requirements. The connection between the feeding network 220 and the coupling calibration network 210 may be effectively connected by means of radio frequency connectors or vias.
A backplane 100, configured to implement transmission of uplink and downlink signals with a base station system, and then transmit the signals to each antenna coupling calibration module; the calibration link is transmitted to the base station through the antenna coupling calibration module 200.
In this embodiment, the configuration and splicing manner of each module may be determined according to the specific antenna application requirements. The diversified requirements of the antenna application mainly include erection requirements, sectorization requirements, multiple antenna mode requirements, coverage effect requirements, multiple-system common antenna feeder requirements and the like.
As shown in fig. 2, fig. 2 is a schematic top view of an embodiment of the antenna coupling calibration system of the present invention, and for the sake of simplicity, the modular antenna coupling calibration network system shown in fig. 2 only depicts four antenna coupling calibration modules 200, wherein each of the coupling calibration modules 200 has the same number of antenna elements 230, and in fig. 2, an example is given in which each of the coupling calibration modules 200 includes eight antenna elements 230. In practical applications, the number of modules included in the coupling calibration module 200 and the number of antenna elements 230 included in the coupling calibration module 200 are not limited thereto. The coupling calibration modules 200 are placed on the backboard 100 in a parallel or non-parallel, equidistant or unequal manner, and can be adjusted accordingly according to actual design requirements.
As shown in fig. 3, fig. 3 is a schematic side view of a three-dimensional structure of an embodiment of an antenna coupling calibration system of the present invention, wherein the modular antenna coupling calibration network device includes: four antenna coupling calibration modules 200, a backplane 100, a first rf connector 300, and a second rf connector 400. The antenna coupling calibration module 200 includes: the antenna array 230, the coupling calibration network 210 and the feeding network 220, wherein the antenna array 230 and the coupling calibration network 210 are respectively disposed on the front and back surfaces of the dielectric plate 240, the middle layer of the dielectric plate 240 serves as a ground layer and a metal reflection plate 260, the antenna array 230 is connected to the coupling calibration network 210 through the feeding network 220 in a via hole 250 manner, and the antenna coupling calibration module 200 is an integrated single module. In practical application, the dielectric Board 240 is a PCB (Printed Circuit Board), wherein an antenna element 230 is disposed on one surface of the dielectric Board 240, and the coupling calibration network 210 is Printed on the other surface of the dielectric Board 240; the middle layer of the dielectric plate 240 serves as a ground layer for coupling the calibration network 210 and the antenna element 230, and also serves as a metal reflection plate 250 of the antenna element 230, so as to enhance the directional radiation of the antenna element 230.
Referring further to fig. 3, in fig. 3, the antenna elements 230 included in the antenna coupling calibration module 200 are eight dual-polarized antenna elements and are disposed in parallel at equal intervals; in actual application, the number of the antenna elements 230 may be the same or different; the antenna elements 230 may be arranged in a straight line, in a circular shape, or in other irregular shapes, and may be arranged at equal intervals or at unequal intervals; the types of the antenna elements 230 included in the antenna coupling calibration modules 200 may be the same or different; the device can be in a directional mode, a single polarization mode or a dual polarization mode; the orientation may be at any angle, such as 30 °, 60 °, etc.; the dual polarization of the antenna element 230 may be horizontal and vertical polarization, or ± 45 ° polarization.
The coupling calibration network 210 included in each antenna coupling calibration module 200 includes a microstrip directional coupler 270 and a shunt combiner 280, the number of the microstrip directional couplers 270 is the same as that of the antenna arrays 230, and the microstrip directional couplers are in one-to-one correspondence, after the feed network 220 of each antenna array 230 realizes parallel feed in the form of microstrip lines and the like, the feed network is connected with the corresponding microstrip directional coupler on the coupling calibration network 210 through a via hole 250, so that the antenna arrays 230 and the coupling calibration network 210 are arranged on the same dielectric plate 240, and therefore, the modes of cable welding and the like are not needed, and therefore, the coupling calibration module is particularly suitable for large-scale antenna arrays, is convenient to produce, and improves the production efficiency.
Further, the back sheet 100 includes: the dielectric plate 110, the dielectric plate 110 is a printed circuit PCB, the middle layer of the dielectric plate 110 is used as a ground layer 130 of the shunting and combining network 120, one surface of the dielectric plate 110 facing the antenna coupling calibration module 200 is provided with the shunting and combining network 120, and the dielectric plate is used for performing combining transmission on the power shunting/combining signals transmitted by each antenna coupling calibration module 200 and then calibrating a link for a base station system.
The downlink calibration working link flow of the antenna coupling calibration system provided by this embodiment is as follows: thirty-two paths of radio frequency signals sent from a downlink of a base station are input to the backplane 100 by thirty-two second radio frequency connectors 400 respectively, then transmitted to the four antenna coupling calibration modules 200 by thirty-two first radio frequency connectors 300, coupled by each antenna coupling calibration module 200 and synthesized into one path of signal in an equal-difference-loss and equal-phase-shift manner, output back to the backplane 100 by the first radio frequency connectors 300, synthesized into one path of signal by the branching and combining network 120 of the backplane 100, and then transmitted to a calibration link of the base station by the second radio frequency connectors 400 for calibration.
The uplink calibration working link flow of the antenna coupling calibration system provided by this embodiment is as follows: calibration signals from the calibration link are input to the backplane 100 through the second radio frequency connector 400, are divided into four paths of signals by the splitting/combining network 120 of the backplane 100, and are transmitted to the antenna coupling calibration modules 200 through the first radio frequency connectors 300, and are divided into eight paths of signals by the antenna coupling calibration modules 20 in an equal-difference-loss and equal-phase-shift manner, and are coupled, and then are output to the backplane 100 through the eight first radio frequency connectors 300, and then enter the uplink of the base station system.
The first rf connector 300 and the second rf connector 400 are both disposed in the non-edge extension areas inside the antenna coupling calibration module 200 and the backplate 100, so as to facilitate structure miniaturization and integration, and any other similar reliable connection methods can be used, which is not described herein again.
As shown in fig. 4, fig. 4 is a layout diagram of a first embodiment of an antenna element, where the antenna element 230 includes a first element row 231 and a second element row 322, each element row is formed by four antenna elements 230 formed by dual-polarized elements, and the antenna elements 230 are polarized at +45 ° and-45 ° with respect to the vertical direction or the horizontal direction for transmitting or receiving radio frequency signals. Every two of the upper and lower adjacent array rows are connected in parallel feeding mode by adopting structures such as microstrip lines and the like, and are connected with the microstrip directional coupler through the via hole 250. The antenna elements 230 may be arranged in parallel and at equal intervals, or in staggered and unequal interval arrangements, or in different combinations of these manners. The antenna array 230 may be a metal array, a microstrip structure or a patch structure, and the antenna array 230 may be dual polarized or single polarized.
With further reference to fig. 5, a layout diagram of the second embodiment of the antenna element shown in fig. 5, in order to enhance the isolation between the elements, a first antenna partition 261 may be transversely disposed between the adjacent first antenna element row 231 and second antenna element row 232. In order to further optimize the performance, the antenna array 230 may also be used as a unit, partition plates are arranged around the antenna array, that is, a second antenna partition plate 262, a third antenna partition plate 263 and a fourth antenna partition plate 264 which are vertically intersected with the first antenna partition plate 261 may be added, and meanwhile, a first antenna side plate 271, a first antenna side plate 272, a third antenna side plate 273 and a fourth antenna side plate 274 may also be added around the antenna array, and the manner of adding the antenna partition plates and the surrounding side plates is not limited to that shown in this embodiment, where the antenna partition plates may be designed separately or integrated on the radome structure, so as to improve the strength of the radome and enhance the safety and stability of the antenna system. Other modes such as small cover plate can be added above the antenna array element, so that each antenna array element has more independent space. In practical applications, the number, layout, and types of the antenna elements 230 of each antenna coupling calibration module 200 may be the same or different, and may be adjusted accordingly according to actual base station requirements.
As shown in fig. 6, fig. 6 is a layout diagram of a first embodiment of a coupling calibration network, and the coupling calibration network 210 includes eight identical microstrip directional couplers 270, seven two-in-one splitting combiners 280, and a first rf connector 300.
The number of the microstrip directional couplers 270 is the same as that of the antenna arrays 230, and two similar metal parallel microstrip lines are adopted, so that the product performance consistency is excellent. The microstrip directional coupler 270 includes a first microstrip line 241 and a second microstrip line 242, one end of the first microstrip line 241 is correspondingly connected to the antenna array 230 through the via hole 250, and the other end of the first microstrip line 241 is connected to the first radio frequency connector 300; one end of the second microstrip line 242 is connected to a matching load 290 or ground, and the other end of the second microstrip line 242 is connected to the splitting combiner 280. The matching load 290 has a resistance of 50 Ω, and an isolation resistor 243 is disposed between two gaps of each splitting/combining device 280.
The number of the branching/combining devices 280 is limited by the number of the signal transmission paths, and in this embodiment, a two-in-one branching/combining device 280 is adopted, so that seven branching/combining devices 280 are required to complete the transmission of eight signals, and finally one signal is synthesized and transmitted to the first rf connector 300. If the one-in-four splitting/combining device 280 is adopted, after the eight antenna elements 230 and the eight microstrip directional couplers 270 are arranged, only one-in-four and one-in-two splitting/combining device is needed to complete the splitting/combining of the eight signals.
In practical application, the coupling calibration network 210 of each antenna coupling calibration module 200 is adjusted correspondingly according to the actual number of antenna arrays, and preferably, each antenna coupling calibration module 200 is set identically, that is, the number of antenna arrays is the same, and the coupling calibration networks are the same, so that transmission signals of each channel pass through the same path, and transmission channels are symmetrical, thereby facilitating the debugging of amplitude-phase consistency among the channels.
As shown in fig. 7, fig. 7 is a layout diagram of a first embodiment of a backplane, where thirty-two first rf connectors 300 are arranged in parallel on upper and lower sides, and are used to transmit uplink and downlink rf signals from a base station to microstrip directional couplers of each coupling calibration network 210, and three two-in-one branching/combining devices 280 are used to combine signals of four antenna coupling calibration modules 200 into one path, and transmit the path to a calibration link of the base station through a second rf connector 400. The signal of the four modules can be combined into one path by a one-to-four branching combiner, and the signal can be correspondingly adjusted according to the actual design requirement.
In practical applications, due to factors such as insufficient space, signals between the microstrip circuit of the combiner/divider network 120 of the backplane module and the microstrip circuit of the antenna coupling calibration module 200 may have mutual coupling influence, which may cause discreteness of amplitude and phase characteristics of individual channel microstrip lines in a pass band, and in order to improve channel amplitude and phase consistency, as shown in fig. 8, the combiner/divider network 120 in the middle of the backplane 100 is placed in the shielding cavity 150. Or covering with a wave-absorbing material, or connecting the antenna coupling calibration module 200 and the backplane 100 by using a radio frequency connector with a cable, or enlarging the distance between the antenna coupling calibration module 200 and the backplane 100, or pulling out the branch/combiner network 120 in the middle of the backplane 100 to be designed separately, and connecting the antenna coupling calibration module 200 to the backplane 100 by using a cable manner, or cutting off the corner of the antenna coupling calibration module 200 above the branch/combiner network 120 facing the backplane 100, thereby ensuring that an open space is above the branch/combiner network 120.
Meanwhile, in order to avoid an EMC (Electro Magnetic Compatibility) problem caused by crosstalk between adjacent microstrip lines, the antenna coupling calibration module 200 and the dielectric plate 110 of the backplane 10 improve the performance of the device, measures such as increasing ground holes around the microstrip lines and the radio frequency connector, making the distance between signal lines as far as possible and making the ground plane as complete as possible are taken during design, or any other measures with similar functions for reducing crosstalk influence may be taken.
The antenna coupling calibration system provided by this embodiment performs modular design on the coupling calibration network and the antenna, and flexibly configures the number of modules, connection modes, and the like, so that the antenna coupling calibration system can be applied to base stations with multiple channels, multiple frequency bands, multiple base systems, and any combination thereof, thereby satisfying more base station site co-construction sharing scenarios, better meeting the requirements of operators, and reducing maintenance cost.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. An antenna coupling calibration system, characterized in that, the antenna coupling calibration system includes a backplate and a plurality of antenna coupling calibration modules of integrated design that link to each other with the backplate, the antenna coupling calibration module includes:
the antenna arrays are used for receiving and transmitting radio frequency signals;
the feed network is connected with the antenna array and used for transmitting the radio-frequency signals transmitted and received by the antenna array;
the coupling calibration network is connected with the feed network and the back plate and used for coupling the received and transmitted radio frequency signals and returning the coupled radio frequency signals to the antenna array through the feed network; transmitting the received and transmitted radio frequency signal to the back plate;
the antenna coupling calibration module also comprises a dielectric plate, and the antenna array and the coupling calibration network are arranged on the same dielectric plate;
the antenna array and the coupling calibration network are respectively arranged on the front surface and the back surface of the dielectric plate, a through hole is formed in the dielectric plate, and the antenna array and the coupling calibration network are correspondingly connected through the through hole;
the back plate comprises a shunt combining network and a shielding cavity, wherein the shunt combining network is placed in the shielding cavity and used for improving amplitude and phase consistency.
2. An antenna coupling calibration system according to claim 1 wherein the intermediate layer of the dielectric plate is provided with a ground plane connected to the coupling calibration network and the antenna element and a metal reflector plate connected to the antenna element.
3. An antenna coupling calibration system according to claim 1 wherein the number, type, shape and spacing of the antenna elements in the antenna coupling calibration module are the same.
4. An antenna coupling calibration system according to claim 1, wherein said coupling calibration network further comprises:
the microstrip directional coupler is used for coupling the radio frequency signals transmitted by the back plate and the antenna array;
the branching combiner is used for dividing one path of radio frequency signals transmitted by the backboard into a plurality of paths of radio frequency signals; and synthesizing the multiple radio frequency signals transmitted by the antenna array into one radio frequency signal.
5. The antenna coupling calibration system of claim 1, further comprising a first radio frequency connector and a second radio frequency connector, wherein the backplane is connected to the antenna coupling calibration module via the first radio frequency connector, and wherein the backplane and a base station are connected via the second radio frequency connector.
6. The antenna coupling calibration system of claim 4, wherein the microstrip directional coupler comprises a first microstrip line and a second microstrip line, one end of the first microstrip line is correspondingly connected with the antenna array through the via hole, and the other end of the first microstrip line is connected with the first radio frequency connector; one end of the second microstrip line is connected with a matching load or the ground, and the other end of the second microstrip line is connected with the shunt combiner.
7. The antenna coupling calibration system of claim 1, wherein the antenna coupling calibration module further comprises:
and the antenna partition plate is used for improving the isolation between the antenna elements and the strength of the antenna cover.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410828787.0A CN105790860B (en) | 2014-12-25 | 2014-12-25 | Antenna coupling calibration system |
| PCT/CN2015/078893 WO2016101501A1 (en) | 2014-12-25 | 2015-05-13 | Antenna coupling calibration system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410828787.0A CN105790860B (en) | 2014-12-25 | 2014-12-25 | Antenna coupling calibration system |
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| CN105790860A CN105790860A (en) | 2016-07-20 |
| CN105790860B true CN105790860B (en) | 2020-12-29 |
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| WO (1) | WO2016101501A1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898877B (en) * | 2017-02-20 | 2020-07-10 | 武汉虹信通信技术有限责任公司 | Dense array antenna with blind-mate structure |
| BR112020008581A2 (en) | 2017-10-30 | 2020-10-20 | Huawei Technologies Co., Ltd. | antenna, antenna assembly, and base station |
| CN109802695B (en) | 2017-11-15 | 2020-12-04 | 华为技术有限公司 | Signal receiving and transmitting device and base station |
| US10804616B2 (en) * | 2018-03-27 | 2020-10-13 | Viasat, Inc. | Circuit architecture for distributed multiplexed control and element signals for phased array antenna |
| CN108521017B (en) * | 2018-05-28 | 2024-03-15 | 广东通宇通讯股份有限公司 | Feed network of large-scale MIMO antenna |
| WO2021000203A1 (en) * | 2019-06-30 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | Antenna calibration network unit, antenna calibration network, and mimo antenna |
| WO2021000262A1 (en) * | 2019-07-02 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | Base station antenna |
| CN110198172B (en) * | 2019-07-05 | 2024-05-24 | 中天宽带技术有限公司 | Calibration network of array antenna and base station antenna |
| CN114006663B (en) * | 2021-09-18 | 2023-07-14 | 中国电子科技集团公司第二十九研究所 | Correction method and correction system for improving correction efficiency |
| CN115377671B (en) * | 2022-07-27 | 2024-09-06 | 中国船舶集团有限公司第七二四研究所 | Ultra-wideband long-slit coupling series monitoring network |
| CN118263679A (en) * | 2022-12-27 | 2024-06-28 | 上海华为技术有限公司 | Antenna and base station |
Citations (4)
| 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 |
| CN101156276A (en) * | 2005-01-21 | 2008-04-02 | 洛塔尼股份有限公司 | Method and apparatus for an antenna module |
| 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 |
| CN103825104A (en) * | 2014-01-24 | 2014-05-28 | 张家港保税区国信通信有限公司 | Built-in combined small intelligent antenna applied to TD-LTE base station |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10237823B4 (en) * | 2002-08-19 | 2004-08-26 | Kathrein-Werke Kg | Antenna array with a calibration device and method for operating such an antenna array |
| CN100336318C (en) * | 2004-07-08 | 2007-09-05 | 中兴通讯股份有限公司 | A method and device for intelligent antenna array calibration of TDD wireless communication system |
| FR2919433B1 (en) * | 2007-07-27 | 2010-09-17 | Thales Sa | COMPACT ANTENNA MODULE. |
| CN204243214U (en) * | 2014-10-28 | 2015-04-01 | 中兴通讯股份有限公司 | A kind of intelligent antenna equipment |
-
2014
- 2014-12-25 CN CN201410828787.0A patent/CN105790860B/en active Active
-
2015
- 2015-05-13 WO PCT/CN2015/078893 patent/WO2016101501A1/en active Application Filing
Patent Citations (4)
| 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 |
| CN101156276A (en) * | 2005-01-21 | 2008-04-02 | 洛塔尼股份有限公司 | Method and apparatus for an antenna module |
| 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 |
| CN103825104A (en) * | 2014-01-24 | 2014-05-28 | 张家港保税区国信通信有限公司 | Built-in combined small intelligent antenna applied to TD-LTE base station |
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| CN105790860A (en) | 2016-07-20 |
| WO2016101501A1 (en) | 2016-06-30 |
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