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Spherical near-field antenna measurement system and correction method

A technology for measurement systems and near-field antennas, applied in radio wave measurement systems, antenna radiation patterns, instruments, etc., can solve the problems of investing in special equipment, spending a lot of time and labor costs, and being difficult to meet the large-scale calibration requirements of measurement systems , to achieve high measurement accuracy and reduce technical difficulty

Active Publication Date: 2020-08-25
CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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Problems solved by technology

[0004] The technical problem to be solved by the present invention is: how to solve the need to invest in special equipment during the calibration of the existing measurement system, the need to adjust the calibration parameters for different measurement systems, the need to spend a lot of time and labor costs, and it is difficult to meet the large-scale calibration of the measurement system Requirements and other issues, a spherical near-field antenna measurement system is provided

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  • Spherical near-field antenna measurement system and correction method
  • Spherical near-field antenna measurement system and correction method
  • Spherical near-field antenna measurement system and correction method

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Embodiment Construction

[0061] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0062] Such as Figure 1~3 As shown, this embodiment provides a technical solution: a spherical near-field antenna measurement system, including a main control module, a motion controller, a receiver, a pitch scanning frame 2, a probe array 1, an azimuth turntable, a multi-channel switch, a calibration Antenna 3, the main control module is respectively connected with the pitch scanning frame 2 and the azimuth turntable through the motion controller, the correction antenna 3 is installed on the azimuth turntable, the main control module, the The receiver, the multi-channel switch, and the probe array 1 are connecte...

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Abstract

The invention discloses a spherical near-field antenna measurement system and a correction method and belongs to the technical field of antenna measurement, the system comprises a main control module,a motion controller, a receiver, a pitching scanning frame, a probe array, an azimuth turntable, a multi-channel switch and a correction antenna, when the probe array is corrected, the correction antenna transmits a signal, the signal reaches the probe array through space propagation, the probe antenna in the probe array collects correction data one by one, and the collected correction data is Eat an initial position 0; the pitching scanning frame scans upwards to a position 1, and correction data is collected again as D; the pitching scanning frame scans downwards to a position 2, correction data F is acquired again, calculating is performed to obtain a group of correction coefficients through three groups of correction data, the coefficients are loaded to near-field measurement software, and the measurement data is automatically corrected in the testing process. The system and the method are high in correction precision, low in correction cost and high in correction speed, and a brand-new high-efficiency solution is provided for spherical near-field multi-probe correction.

Description

technical field [0001] The invention relates to the technical field of antenna measurement, in particular to a spherical near-field antenna measurement system and a correction method. Background technique [0002] The multi-probe spherical near-field antenna measurement system is an effective antenna measurement equipment, which is widely used in various antenna testing fields such as communication antennas, phased array radar antennas, and reflector satellite antennas. The multi-probe spherical near-field antenna measurement system can complete the measurement of the antenna gain, pointing angle, lobe width, side lobe level and other technical indicators of the antenna to be tested. [0003] During the use of this type of measurement system, it is necessary to periodically correct the amplitude and phase of the probe array to ensure that the amplitude loss and phase delay of each channel are the same. At this stage, the calibration of the probe array needs to be completed ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/10G01S7/40
CPCG01R29/10G01S7/4026G01S7/4004
Inventor 张重阳黄文涛张再庆陈旭刘浩明章健盛永鑫
Owner CHINA ELECTRONIC TECH GRP CORP NO 38 RES INST
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