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Antenna near field coupling measuring device and method

A technology of near-field coupling and measuring devices, which is applied in the directions of measuring devices, measuring electrical variables, antenna radiation patterns, etc., can solve the problems of long measurement time and high measurement environment requirements, and achieve long measurement time, high measurement environment requirements, and fast originality. The effect of bit performance testing

Inactive Publication Date: 2021-05-25
中国人民解放军海军航空大学航空作战勤务学院
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Problems solved by technology

However, since the near-field measurement method needs to use the probe to scan the test surface in the microwave anechoic room, the measurement environment requires high requirements and the measurement time is long

Method used

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Embodiment Construction

[0016] The present invention will be further described in detail below in conjunction with the embodiments, so that those skilled in the art can implement it with reference to the description.

[0017] In the existing technology, after decades of long-term development, the near-field scanning method has obvious advantages over several other testing techniques, and has been widely used in practical engineering. The near-field scanning method refers to the method of using a probe with known characteristics in the near-field area to perform plane, cylindrical or spherical sampling and scanning on the test antenna, and using mathematical transformation methods to solve the far-field characteristics of the antenna according to the sampling theorem. However, since the near-field measurement method needs to use the probe to scan the test surface in the microwave anechoic room, the measurement environment requires high requirements and the measurement time is long.

[0018] In order t...

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Abstract

The invention discloses an antenna near field coupling measuring device and method. The measuring device comprises an electromagnetic shielding cover, an electromagnetic wave-absorbing material, a broadband antenna, a high-frequency interface, a positioning mounting accessory and a transceiving processing assembly, wherein the electromagnetic wave-absorbing material is arranged in the electromagnetic shielding cover, the broadband antennas are arranged on the inner ring of the electromagnetic wave-absorbing material, the high-frequency interface is used for being connected with a transceiving processing assembly, and the positioning mounting accessory is used for fixing the electromagnetic shielding cover at the position of an antenna to be tested. According to the measuring method, an equivalent microwave anechoic chamber conformal to an antenna to be measured is constructed through an electromagnetic shielding cover and an electromagnetic wave-absorbing material, and electromagnetic wave energy received by a broadband antenna is received through a high-frequency interface and is forwarded to a transceiving processing assembly. According to the technical scheme disclosed by the invention, the accuracy and rapid detection capability of performance detection are improved.

Description

technical field [0001] The invention relates to an antenna near-field coupling measurement device and method, in particular to a device and method for radio equipment near-field coupling measurement. Background technique [0002] In the existing technology, common indicators of radio systems include sensitivity, transmit power, bit error rate, frequency accuracy, frequency stability, signal bandwidth, adjacent channel suppression, distortion, time delay, etc., and the system-level performance of airborne communication equipment The two most important indicators that may change during use are receiving sensitivity and transmitting power, which directly determine the communication distance and communication quality of the system. Propagation loss cannot be directly obtained by the instrument. The test of spatial propagation loss is closely related to the field distribution of the antenna. According to engineering practice, we can roughly divide the field of the antenna into t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R29/10
CPCG01R29/10G01R29/105
Inventor 张嵩赵志勇刘锡国
Owner 中国人民解放军海军航空大学航空作战勤务学院
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