Spherical antenna near-field calibration and scanning method, system and terminal

A scanning method and antenna technology, applied in directions such as antenna radiation patterns, can solve problems such as the inability to effectively ensure channel amplitude and phase consistency, and achieve the effects of high test efficiency, simple system configuration, and stable performance

Pending Publication Date: 2021-09-28
成都华芯天微科技有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the problem that the amplitude and phase consistency of each channel cannot be effectively guaranteed in the near-field test of the existing spherical phased array antenna, and provide a spherical antenna near-field calibration and scanning method, system and terminal

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  • Spherical antenna near-field calibration and scanning method, system and terminal
  • Spherical antenna near-field calibration and scanning method, system and terminal
  • Spherical antenna near-field calibration and scanning method, system and terminal

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Embodiment Construction

[0048] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0049]In the description of the present invention, it should be noted that the terms belonging to "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" etc. The indicated direction or positional relationship is based on the direction or positional relationship described in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specifi...

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Abstract

The invention discloses a spherical antenna near-field calibration and scanning method and system and a terminal, and belongs to the technical field of antenna tests. The channel calibration comprises the steps that space coordinates and orientation information of all channels in a spherical antenna on a spherical surface are obtained, and then the spherical coordinate mapping relation between all the channels and a six-axis mechanical arm is calculated; the six-axis mechanical arm carrying the test probe is controlled to move to each channel of the spherical antenna; amplitude and phase data of each channel are collected, an amplitude and phase data compensation table is obtained, and then amplitude and phase compensation processing is carried out on the corresponding channel in the beam combining process. By calculating the spherical coordinate mapping relationship between each channel and the six-axis mechanical arm, the six-axis mechanical arm can realize accurate spherical motion, and the test accuracy is ensured; amplitude and phase compensation processing is carried out on the corresponding channels in the beam forming process through the amplitude and phase data compensation table so as to meet the requirement for equal amplitude and equal phase of beam forming, the amplitude and phase consistency of each channel is effectively guaranteed, and then the method can adapt to high-frequency-band antenna testing.

Description

technical field [0001] The present invention relates to the technical field of antenna testing, in particular to a spherical antenna near-field calibration and scanning method, system and terminal. Background technique [0002] With the continuous development of science and technology and application scenarios, antenna technologies such as spherical antennas, common array antennas, multi-beam antennas, and omnidirectional antennas have also developed rapidly. Therefore, higher requirements and indicators have been put forward for the above-mentioned types of antenna tests. Antenna testing is a necessary means to verify the performance of the antenna. Obtaining the pattern data of the antenna can quickly analyze whether the indicators of the antenna under test meet the expectations. [0003] Due to the particularity of the spherical near-field antenna test, that is, the high-frequency antenna has greater space loss during the test process than the low-frequency antenna. Under...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/10
CPCG01R29/10
Inventor 余浪吴曈汪渊邓方科李冬杨迅
Owner 成都华芯天微科技有限公司
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