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Array antenna diagnostic method, equipment, system and computer readable storage medium

A technology of array antenna, diagnostic method, applied in the direction of antenna radiation pattern, electromagnetic field characteristics, etc.

Active Publication Date: 2019-05-28
GENERAL TEST SYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although this method can locate the fault, it can only test one array element at a time

Method used

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  • Array antenna diagnostic method, equipment, system and computer readable storage medium
  • Array antenna diagnostic method, equipment, system and computer readable storage medium
  • Array antenna diagnostic method, equipment, system and computer readable storage medium

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Embodiment Construction

[0052] Embodiments of the present invention will be described in detail below. It should be emphasized that the following descriptions are only exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0053] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, a feature defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0054] In the present invention, unless otherwise clearly specified and limited, terms such as "installation", "connection", "connection" and "fixation" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connect...

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Abstract

The invention discloses an array antenna diagnostic method. The method comprises the following steps that S1, an array element directional diagram of an array antenna and the position of the center ofthe array element directional diagram are obtained; S2, port excitation I is fed; S3, positions of M first measurement points and first measurement data E of the array antenna at electric / magnetic fields of the M first measurement points are obtained; S4, aperture field excitation I' is obtained according to the array element directional diagram, the position of the center of the array element directional diagram, the positions of the first measurement points and the first measurement data E; S5, a difference value between the aperture field excitation I' and the reference aperture field excitation I'R is calculated, for a single array element, if the difference value is larger than a preset threshold value, the element is judged to be a fault element, otherwise, the element is judged tobe a normal element. Accordingly, by means of less measurement data, and by combining known priori knowledge of the array antenna, the array antenna can be diagnosed quickly and efficiently, the failure is positioned to the single array element, and the method has great significance on research and development and array antenna diagnosis on a production line.

Description

technical field [0001] The present invention relates to the technical field of antennas, in particular to a diagnostic method, device, system and computer-readable storage medium of an array antenna. Background technique [0002] Antennas are widely used in radio systems such as communications, broadcasting, television, radar, and navigation. They play the role of spreading radio waves and are an essential device for effectively radiating and receiving radio waves. An array antenna is a type of antenna that is arranged regularly or randomly by no less than two antenna elements and obtains predetermined radiation characteristics through proper excitation. In recent years, array antennas have attracted much attention as an important development direction of civilian and military antenna technology. [0003] The array antenna is composed of multiple antenna elements. Each element is fed with a signal of a certain amplitude and phase to form a specific beam and realize beam sca...

Claims

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Application Information

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IPC IPC(8): G01R29/10G01R29/08
Inventor 漆一宏于伟沈鹏辉
Owner GENERAL TEST SYST
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