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A Test Method for External Field Antenna Pattern

A technology of antenna pattern and test method, applied in directions such as antenna radiation pattern, to achieve the effect of eliminating disassembly and reinstallation, reducing the number of moves, and reducing errors

Inactive Publication Date: 2015-11-18
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the deficiencies of the prior art, and provide a method for testing the antenna pattern in the field, so as to realize the test of the antenna pattern in the situation that the antenna unit is not disassembled in the field and the antenna under test is inconvenient to maneuver and remains in situ for testing. Perform accurate and rapid measurement, provide analysis data for field maintenance and fault location, and use for regular inspection of field antennas

Method used

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  • A Test Method for External Field Antenna Pattern
  • A Test Method for External Field Antenna Pattern
  • A Test Method for External Field Antenna Pattern

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Embodiment Construction

[0028] Specific embodiments of the present invention will be described below in conjunction with the accompanying drawings, so that those skilled in the art can better understand the present invention. It should be noted that in the following description, when detailed descriptions of known functions and designs may dilute the main content of the present invention, these descriptions will be omitted here.

[0029] When testing the antenna pattern in the field, the equipment setup diagram is as follows: figure 1 As shown, the specific process is as follows:

[0030] Install the auxiliary antenna on the antenna turntable system, and move it to a distance R meters directly in front of the antenna under test to meet the requirements of the field distance. In this embodiment, the test distance R is based on the field test distance formula R≥KD 2 / λ calculation, where D is the aperture of the antenna under test, and K is a constant, usually K≥2. In this embodiment, the frequency ...

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Abstract

The invention discloses an external field antenna pattern testing method. A test station is looked for as an auxiliary antenna and an antenna rotation platform system are installed on a mobile maneuvering device and move around a measured antenna; a total station in an optical surveying and mapping instrument is innovatively adopted for locating the angle and the distance when the antenna moves and a test station with the corresponding deviation angle can be accurately located. By the adoption of the test station locating method where the maneuvering device, the total station in the optical surveying and mapping instrument and the antenna rotation platform system are combined, the measuring angle can be located accurately to local conditions under conditions of an external field. Meanwhile, after the measuring station is located, the total station is used for automatically tracking azimuth information and a horizontal scan frame on the antenna rotation platform system is used for moving the auxiliary antenna, so that the auxiliary antenna can be accurately located at all measuring stations within a certain measurement angle range at each measuring station, the moving frequency of the maneuvering device is lowered, errors brought by moving of the maneuvering device are reduced and the testing efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of test and measurement, and more specifically relates to a method for testing an antenna pattern under external environment conditions. Background technique [0002] With the application of antennas in radar, communication and other radio systems more and more widely, the measurement of antennas has attracted more and more attention. There are many technical indicators for antenna measurement, among which the antenna pattern represents the ability of the antenna to radiate electromagnetic waves in space, and reflects the performance index and working status of the antenna. Therefore, the measurement and analysis of the antenna pattern can analyze the radiation characteristics of the antenna. Provide analysis data for the commissioning, installation, maintenance, and overhaul of the antenna during use, and determine whether the performance indicators of the antenna meet the requirements and whether the anten...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/10
Inventor 李力张朋黄建国唐煌刘华杰吴万东
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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