Full-airspace phased-array measured antenna rotation simulation calibration system and method

A phased array antenna and analog calibration technology, applied in the antenna radiation pattern and other directions, can solve the problems of poor feasibility, heavy workload, large error, etc., achieve efficient calibration, ensure work performance, and realize the effect of batch testing

Active Publication Date: 2019-07-05
ISHARECLOUD TECH CO LTD
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Problems solved by technology

[0003] Therefore, only after the phased array antenna is calibrated can it effectively point and track the target and establish a radio link; at present, there are mature calibration methods for the one-dimensional phased array antenna and the two-dimensional planar phased array antenna, but for For three-dimensional full-space phased array antennas, if a calibration method similar to one-dimensional and two-dimensional is used, there will be problems of heavy workload, poor feasibility, and large errors

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  • Full-airspace phased-array measured antenna rotation simulation calibration system and method

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[0040] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0041] like figure 1 As shown, a full airspace phased array antenna under test rotation simulation calibration system, including the calibration antenna array, the phased array antenna under test, the three-dimensional pan-tilt for fixing the phased array antenna under test, a digital signal processing platform, computer equipment and Optical instruments; the digital signal processing platform is respectively connected with the calibration antenna array, the phased array antenna under test and computer equipment, and the computer equipment is also connected with the 3D pan-tilt and optical instruments;

[0042] The computer device is used to control the movement of the three-dimensional pan / tilt along the ideal electric curved surface to ad...

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Abstract

The invention discloses a full-airspace phased-array measured antenna rotation simulation calibration system and method. The system comprises a calibration antenna array, a measured phased-array antenna, a three-dimensional holder which fixes the measured phased-array antenna, a digital signal processing platform, a computer and an optical instrument. The digital signal processing platform is connected with the calibration antenna array, the measured phased-array antenna and the computer. The computer is connected with the three-dimensional holder and the optical instrument. According to the full-airspace phased-array measured antenna rotation simulation calibration system and method, high-efficiency calibration of the channel uniformity and the antenna pointing performance of the full-airspace phased-array antenna is realized, which helps to ensure the work performance of the antenna.

Description

technical field [0001] The invention relates to antenna calibration of radio equipment, in particular to a rotation simulation calibration system and method for a phased array antenna under test in all airspace. Background technique [0002] At present, in radio equipment such as mobile communication base stations, detection stations, and satellite communications, phased array antennas are more and more widely used. The accuracy of beamforming, beam steering, and search and capture of a phased array antenna depends on the initial phase accuracy and phase shifting accuracy of the antenna array elements. The phased array antenna using digital beamforming has extremely high phase shifting accuracy, so the antenna area The initial phase accuracy calibration becomes the decisive factor of the antenna performance. There are two main factors that affect the phase of the antenna array element: one is the array element space position error introduced by the array structure and array...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/10
CPCG01R29/10
Inventor 曾新德
Owner ISHARECLOUD TECH CO LTD
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