CN108562801B - Array antenna test system and test method thereof - Google Patents
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- CN108562801B CN108562801B CN201810424620.6A CN201810424620A CN108562801B CN 108562801 B CN108562801 B CN 108562801B CN 201810424620 A CN201810424620 A CN 201810424620A CN 108562801 B CN108562801 B CN 108562801B
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Abstract
The invention discloses an array antenna test system and a test method thereof, wherein the system comprises a vector network analyzer, an upper computer, a probe array (2) for testing, an automatic control device of the probe array and a liftable platform (1) for setting an array antenna (3) to be tested; the automatic control device of the probe array is used for enabling the probe array (2) to be used as a mirror image array to correspond to the tested array antenna (3) by receiving array arrangement coordinate signals of the tested array antenna (3) transmitted by the upper computer; the vector network analyzer generates radio frequency signals and is connected to the tested array antenna (3), the tested array antenna (3) outputs the tested signals to the probe array (2), and the probe array (2) transmits the tested signals back to the vector network analyzer for analysis. The invention can adapt to the number and different arrangement conditions of the antenna arrays to be tested, and can automatically change the numbers and arrangement of the mirror image probe arrays, thereby achieving the multi-probe self-adaptive test.
Description
Technical Field
The invention relates to the technical field of near-field amplitude phase calibration of base station array antennas and testing of communication network parameters, in particular to an array antenna testing system and an array antenna testing method.
Background
In the prior art, the array antenna test of the base station is generally carried out in a microwave darkroom, but the test method has high cost and long time, and the antenna arrays with different arrangement forms are not subjected to self-adaptive test, and a probe clamp is required to be customized, and the test environment is built again for the test.
Disclosure of Invention
The invention aims to overcome the defects of the existing test scheme of the base station array test and provides a test scheme with low cost in an internal field. The invention is applied to the near-distance amplitude phase calibration of the base station array antenna and the test of the communication network parameters such as active radiation power, realizes the low-cost automatic test of the internal field (production environment) quantity product, and can adapt to the tests of different frequency bands, different antenna array element numbers and different antenna array element arrangement states. The aim of the invention is achieved by the following technical scheme.
An array antenna test system comprises a vector network analyzer, an upper computer, a probe array for test, an automatic control device of the probe array and a liftable platform for setting an array antenna to be tested; the probe array is arranged in parallel with the liftable platform, the probe direction corresponds to the liftable platform, and a plurality of probes are arranged in the probe array; the vector network analyzer is connected with the probe array in a wireless way and is connected with the upper computer in a wired way; the automatic control device of the probe array is connected with the upper computer and is provided with a control unit, and the control unit controls each probe in the probe array to move in X, Y directions (X, Y is two directions perpendicular to each other) in the array plane by receiving network signals of the upper computer.
Further, the control unit receives an array arrangement coordinate signal of the array antenna to be tested, which is transmitted by the upper computer, so that the probe array is used as a mirror image array to correspond to the array antenna to be tested; the vector network analyzer generates radio frequency signals and is connected to the array antenna to be tested, the array antenna to be tested outputs the signals to be tested to the probe array, and the probe array transmits the signals to be tested back to the vector network analyzer for analysis.
Further, the liftable platform is arranged in a fixed frame, the liftable platform can move up and down along the upright posts around the frame, and the probe array is arranged on the upper part of the fixed frame.
Further, the upper computer is connected with the liftable platform and controls the upper computer to move up and down, so that the Z-direction movement of the platform is realized.
Further, the probe array comprises an external frame, an action bar and a probe; slide rails along the Y-axis direction are arranged on two sides of the outer frame; the plurality of action bars are arranged in parallel, two ends of each action bar are movably connected to the sliding rail, the upper computer sends out instructions, and the automatic control device can control each action bar to move along the Y-axis direction; each action bar is provided with a plurality of probes, the upper computer sends out instructions, and the automatic control device can control each probe to move along the X direction on the action bar.
Further, the automatic control device of the probe array further comprises a switch matrix; the vector network analyzer is respectively connected with the upper computer and the switch matrix, and the switch matrix is connected with probes in the probe array to control the starting and closing of the probes; the control unit is respectively connected with the switch matrix and the upper computer.
An array antenna testing method, which uses the array antenna testing system, comprises the following steps:
1) Arranging the array antenna to be tested on the liftable platform, and adjusting the position of the liftable platform;
2) The array arrangement coordinates of the array antenna to be tested are transmitted to a control unit of an automatic control device of the probe array through a network by an upper computer; the control unit is used for automatically changing the arrangement of the probe array according to the arrangement condition of the array antenna to be tested through processing calculation, so that the probe array is used as a mirror image array to be in one-to-one correspondence with the array antenna to be tested;
3) Starting a vector network analyzer to enable the antenna of the array to be tested, the probe array and the vector network analyzer to form a test loop; the vector network analyzer generates radio frequency signals and is connected to the tested array antenna as standard signals, the tested array antenna outputs tested signals, the probe array collects and receives the tested signals output by the tested array antenna and transmits the tested signals back to the vector network analyzer, and the network analyzer calculates and analyzes various indexes of the tested array antenna.
Further, the test was performed in a non-microwave dark room environment.
Further, each antenna in the array antenna to be tested in step 3) outputs the signal to be tested at the same time.
The working principle of the array antenna test system is as follows:
1) The tested base station array antenna is fixed on a program-controlled lifting platform, and the probe array used for testing is used as a mirror image array and corresponds to the array antenna one by one.
2) The system comprises a tested array antenna, a probe array and a vector network analyzer, wherein a test loop is formed by the tested array antenna, a radio frequency signal is generated by the vector network analyzer, the radio frequency signal is accessed to the tested array antenna as a standard signal, the tested signal is output through the antenna, the mirror image probe array collects and receives the radio frequency signal emitted by the array antenna and transmits the collected signal back to the vector network analyzer, so that the vector network analyzer can calculate and analyze each index of the array antenna according to the input and output signals
3) Each probe unit in the mirror image probe array realizes X, Y-direction movement through an automatic control device, and the liftable platform of the tested antenna array can realize up-and-down movement through program control, which is equivalent to realizing XYZ-direction displacement of the probe array.
4) The upper computer transmits array arrangement coordinates of the antenna array elements to be tested to a control unit of the probe array through a network; the control unit calculates the displacement of each array on the three-dimensional coordinates through processing, and accurately moves through the automatic control device, so that the arrangement of the probe array can be automatically changed according to the arrangement condition of the antenna array to be tested, and the purpose of multi-probe self-adaptive test is achieved.
The invention has the beneficial effects that:
1) The number of the antenna arrays to be tested can be self-adapted and different arrangement conditions can be achieved. The number and arrangement of the mirror image probe array can be automatically changed, so that the multi-probe self-adaptive test is achieved;
2) In the production test process, low-cost batch test can be realized, the test efficiency is remarkably improved, and the requirements on the test site and the environment are reduced.
The method for testing the array antenna changes the fixed thought of the antenna of the prior tested array, namely, the signals sent by the tested antenna are received and collected in a microwave darkroom through a fixed probe clamp for testing. The new thought of testing the antenna array by the probe array, namely 'array testing by array', is provided. The invention provides a self-adaptive multi-probe testing method of an array antenna, which mainly uses an automatic testing platform and a mirrored probe array.
The invention will be described in further detail with reference to the drawings and the detailed description.
Drawings
FIG. 1 is a schematic diagram of the operation of an array antenna test system;
fig. 2 is a schematic diagram of an array antenna test system.
Reference numerals: 1. a liftable platform; 2. a probe array; 3. a measured array antenna; 2-1, a probe; 2-2; an action bar.
Detailed Description
Example 1
As shown in fig. 1 and 2, an array antenna test system comprises a vector network analyzer, an upper computer, a probe array 2 for testing, an automatic control device of the probe array and a liftable platform 1 for setting an array antenna 3 to be tested; the probe array 2 is arranged in parallel with the liftable platform 1, the direction of the probe 2-1 corresponds to the liftable platform 1, and a plurality of probes 2-1 are arranged in the probe array 2; the vector network analyzer is connected with the probe array 2 in a wireless way and is connected with the upper computer in a wired way; the automatic control device of the probe array is connected with the upper computer and is provided with a control unit, and the control unit controls each probe in the probe array to move in the array plane by receiving network signals of the upper computer.
The control unit receives array arrangement coordinate signals of the array antenna 3 to be tested, which are transmitted by the upper computer, so that the probe array 2 is used as a mirror image array to correspond to the array antenna 3 to be tested; the vector network analyzer generates radio frequency signals and is connected to the tested array antenna 3, the tested array antenna 3 outputs tested signals to the probe array 2, and the probe array 2 transmits the tested signals back to the vector network analyzer for analysis.
The liftable platform is arranged in a fixed frame, can move up and down along the upright posts around the frame, and the probe array is arranged at the top of the fixed frame. The probe array is provided with a plurality of action bars 2-2 along which the probe can move, and the action bars themselves can also move back and forth, so that the probe can move in both directions X, Y in the plane of the array. The upper computer is connected with the liftable platform and controls the upper computer to move up and down. Thereby enabling the probe to move in three directions X, Y, Z relative to the array antenna to be tested. The specific structure of the probe array in this embodiment is: the probe array comprises an external frame, an action rod 2-2 and a probe 2-1; slide rails along the Y-axis direction are arranged on two sides of the outer frame; the plurality of action bars 2-2 are arranged in parallel, two ends of the action bars 2-2 are movably connected to the sliding rail, the upper computer sends out instructions, and the automatic control device can control each action bar 2-2 to move along the Y-axis direction; each action bar is provided with a plurality of probes 2-1, the upper computer sends out instructions, and the automatic control device can control each probe 2-1 to move along the X direction on the action bar 2-2.
In this embodiment: the automatic control device of the probe array comprises a switch matrix; the antenna of the array to be tested is connected with a vector network analyzer, the vector network analyzer is respectively connected with an upper computer and a switch matrix, and the switch matrix is connected with probes in the probe array 2 to control the starting and closing of the probes; the control unit is respectively connected with the switch matrix and the upper computer. The test is as follows: the vector network analyzer sends a radio frequency signal to the antenna of the tested array and outputs the tested signal through the antenna, the probe array sends the received tested signal to the vector network analyzer through the switch matrix, the vector network analyzer sends the tested data to the upper computer, and the control unit controls the X, Y axis of the test probe array to move and exchange control information with the upper computer. The vector network analyzer model in this embodiment is Agilent E5071C.
Example 2
The test was performed using the test system of example 1.
An array antenna testing method using the array antenna testing system of embodiment 1, comprising the steps of:
1) Arranging the array antenna 3 to be tested on the liftable platform 1, and adjusting the position of the liftable platform 1;
2) The array arrangement coordinates of the array antenna 3 to be tested are transmitted to a control unit of an automatic control device of the probe array through a network by an upper computer; the control unit is used for automatically changing the arrangement of the probe array 2 according to the arrangement condition of the array antenna 3 to be tested through processing calculation, so that the probe array 2 is used as a mirror image array to be in one-to-one correspondence with the array antenna 3 to be tested;
3) Starting a vector network analyzer to enable the tested array antenna 3, the probe array 2 and the vector network analyzer to form a test loop; the vector network analyzer generates radio frequency signals and is connected to the tested array antenna 3 to serve as standard signals, the tested array antenna 3 outputs tested signals, the probe array 2 collects and receives the tested signals output by the tested array antenna 3 and transmits the tested signals back to the vector network analyzer, and the network analyzer calculates and analyzes various indexes of the tested array antenna.
The test was performed in a non-microwave dark room environment. And 3) outputting the tested signals by each antenna in the tested array antenna in the step 3) at the same time.
1. The mirror image probe array is in one-to-one correspondence with the array antennas to be tested, so that the signals transmitted by the corresponding antennas can be accurately received and sampled. (Note that since the antenna array to be tested has many antennas, signals are simultaneously transmitted during testing, so that in order to ensure that signals transmitted by the antenna to be tested can be accurately received, a probe is required to align with the antennas, and a method for testing the antenna array by using the probe array is not available in the market at present)
2. The automatic test platform ensures that the probe can be controlled to accurately move, and corresponding changes can be made according to different arrangements and different numbers of the antenna arrays to be tested through program control, for example, the intervals of the probes in the probe array can be automatically adjusted according to the intervals of the antennas in the antenna arrays to be tested. The thought of multi-probe self-adaptive test is achieved by automatically controlling the probe array.
Claims (7)
1. An array antenna testing method is characterized in that: the system comprises a vector network analyzer, an upper computer, a probe array (2) for testing, an automatic control device of the probe array and a liftable platform (1) for setting an array antenna (3) to be tested; the probe array (2) is arranged in parallel with the liftable platform (1), the probe direction corresponds to the liftable platform, and a plurality of probes (2-1) are arranged in the probe array (2); the vector network analyzer is connected with the upper computer; the automatic control device of the probe array is connected with the upper computer, and comprises a control unit which controls the probe (2-1) in the probe array (2) to realize displacement in X, Y directions in the array plane by receiving network signals transmitted by the upper computer;
the control unit receives array arrangement coordinate signals of the array antenna (3) to be tested, which are transmitted by the upper computer, so that the probe array (2) is used as a mirror image array to correspond to the array antenna (3) to be tested; the vector network analyzer generates radio frequency signals and is connected to the tested array antenna (3), the tested array antenna (3) outputs the tested signals to the probe array (2), and the probe array (2) transmits the tested signals back to the vector network analyzer for analysis;
the method comprises the following steps:
1) Arranging the array antenna (3) to be tested on the liftable platform (1) and adjusting the position of the liftable platform (1);
2) The array arrangement coordinates of the array antenna (3) to be tested are transmitted to a control unit of an automatic control device of the probe array through a network by an upper computer; the control unit is used for automatically changing the arrangement of the probe array according to the arrangement condition of the array antenna (3) to be tested through processing calculation, so that the probe array (2) is used as a mirror image array to be in one-to-one correspondence with the array antenna (3) to be tested;
3) Starting a vector network analyzer to enable the tested array antenna (3), the probe array (2) and the vector network analyzer to form a test loop; the vector network analyzer generates radio frequency signals and is connected to the tested array antenna as standard signals, the tested array antenna outputs tested signals, the probe array collects and receives the tested signals output by the tested array antenna and transmits the tested signals back to the vector network analyzer, and the network analyzer calculates and analyzes various indexes of the tested array antenna and transmits information to the upper computer.
2. The array antenna testing method according to claim 1, wherein: the test was performed in a non-microwave dark room environment.
3. The array antenna testing method according to claim 1, wherein: and 3) outputting the tested signals by each antenna in the tested array antenna in the step 3) at the same time.
4. The array antenna testing method according to claim 1, wherein: the liftable platform (1) is arranged in a fixed frame, the liftable platform (1) can move up and down along the upright posts around the frame, and the probe array (2) is arranged on the upper part of the fixed frame.
5. The array antenna testing method according to claim 1, wherein: the upper computer is connected with the liftable platform (1) and controls the upper computer to move up and down, so that the Z-direction movement of the platform is realized.
6. The array antenna testing method according to claim 1, wherein: the probe array (2) comprises an external frame, an action bar (2-2) and a probe (2-1); slide rails along the Y-axis direction are arranged on two sides of the outer frame; the plurality of action bars are arranged in parallel, two ends of each action bar are movably connected to the sliding rail, the upper computer sends out an instruction, and the automatic control device of the probe array can control each action bar to move along the Y-axis direction; each action bar is provided with a plurality of probes, the upper computer sends out instructions, and the automatic control device of the probe array can control each probe to move along the X direction on the action bar.
7. The array antenna testing method according to claim 1, wherein: the automatic control device of the probe array also comprises a switch matrix; the vector network analyzer is respectively connected with the upper computer and the switch matrix, and the switch matrix is connected with probes in the probe array to control the starting and closing of the probes; the control unit is respectively connected with the switch matrix and the upper computer.
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| WO2020198956A1 (en) * | 2019-03-29 | 2020-10-08 | 华为技术有限公司 | Antenna testing system and antenna array testing method |
| CN110794222B (en) * | 2019-10-23 | 2020-08-07 | 上海霍莱沃电子系统技术股份有限公司 | Antenna test system and control method thereof |
| CN111551796B (en) * | 2020-04-15 | 2022-04-12 | 广州杰赛科技股份有限公司 | Test device and method for 5G millimeter wave microstrip array antenna |
| CN111711496A (en) * | 2020-06-01 | 2020-09-25 | 大富科技(安徽)股份有限公司 | Commissioning system and method |
| CN112034267B (en) * | 2020-08-19 | 2021-08-27 | 山东大学 | Adjustable probe array device and method for active antenna multi-probe amplitude-phase test |
| CN113504419B (en) * | 2021-09-13 | 2021-11-19 | 中国电子科技集团公司第二十九研究所 | A phase test fixture for an integrated metal slot array antenna |
| CN113866521B (en) * | 2021-11-30 | 2022-04-22 | 荣耀终端有限公司 | Antenna detection device, antenna detection system and antenna detection method |
| CN116366173A (en) * | 2023-03-15 | 2023-06-30 | 北京中微普业科技有限公司 | 5G AAU basic station height Wen Wenxun OTA produces line test system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093604A (en) * | 2016-08-19 | 2016-11-09 | 成都全码特时代科技有限公司 | A kind of Multi probe antenna scanner |
| CN106970271A (en) * | 2017-04-27 | 2017-07-21 | 旷良彬 | One kind digitlization Antenna testing system and method for testing |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0915282A (en) * | 1995-06-30 | 1997-01-17 | Japan Radio Co Ltd | Array antenna diagnostic method and apparatus thereof |
| JP3638108B2 (en) * | 2000-01-19 | 2005-04-13 | 三菱電機株式会社 | Antenna measuring apparatus and antenna measuring method |
| US6507315B2 (en) * | 2001-05-03 | 2003-01-14 | Lockheed Martin Corporation | System and method for efficiently characterizing the elements in an array antenna |
| WO2004013644A1 (en) * | 2002-08-06 | 2004-02-12 | Mitsubishi Denki Kabushiki Kaisha | Antenna measurement device and method |
| US20040061644A1 (en) * | 2002-09-11 | 2004-04-01 | Lockheed Martin Corporation | CCE calibration with an array of calibration probes interleaved with the array antenna |
| US9024828B2 (en) * | 2012-05-09 | 2015-05-05 | Spirent Communications, Inc. | Three dimensional over the air antenna performance evaluation |
| CN103235210B (en) * | 2013-04-01 | 2015-07-29 | 中国舰船研究设计中心 | Local front substitutes the spatial electromagnetic coupled simulation experimental technique of full front |
| CN203941240U (en) * | 2014-07-15 | 2014-11-12 | 中国人民解放军信息工程大学 | A kind of 3 D electromagnetic radiation scanning device based on near-field array probe |
| CN204832360U (en) * | 2015-08-13 | 2015-12-02 | 广东通宇通讯股份有限公司 | An Array Antenna Amplitude and Phase Detection System |
| CN105911531B (en) * | 2016-04-08 | 2018-04-03 | 中国电子科技集团公司第三十八研究所 | A kind of device for phased array antenna field calibration |
| WO2018023929A1 (en) * | 2016-08-01 | 2018-02-08 | 深圳市新益技术有限公司 | Integrated antenna test system |
| US10601695B2 (en) * | 2016-09-01 | 2020-03-24 | Keysight Technologies, Inc. | Systems and methods for radio channel emulation of a multiple input multiple output (MIMO) wireless link |
| CN206161743U (en) * | 2016-11-11 | 2017-05-10 | 南京鑫轩电子系统工程有限公司 | Channel characteristic of digital array antenna test and join in marriage looks calbiration system |
| CN107390037B (en) * | 2017-07-06 | 2020-09-25 | 广东曼克维通信科技有限公司 | Antenna near field testing device and method |
| CN208207079U (en) * | 2018-05-07 | 2018-12-07 | 北京中微普业科技有限公司 | A kind of array antenna test macro |
-
2018
- 2018-05-07 CN CN201810424620.6A patent/CN108562801B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106093604A (en) * | 2016-08-19 | 2016-11-09 | 成都全码特时代科技有限公司 | A kind of Multi probe antenna scanner |
| CN106970271A (en) * | 2017-04-27 | 2017-07-21 | 旷良彬 | One kind digitlization Antenna testing system and method for testing |
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