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Large-scale antenna dome electrical performance compensation method based on reflector shaping

A compensation method and reflective surface technology, which is applied in the direction of radiation unit housing, electrical digital data processing, special data processing applications, etc., can solve the problems of not considering the electrical performance of the antenna system with a cover, and achieve the effect of improving electrical performance

Inactive Publication Date: 2014-04-23
XIDIAN UNIV
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Problems solved by technology

The disadvantage of this method is that it does not consider improving the electrical performance of the covered antenna system by shaping the reflector
[0005] Ren Yahong used the analysis method of physical optics in her 2012 paper "Study on Forming the Shape of Single Reflector Antenna". The required electrical performance, however, this method does not apply the reflector shaping to the compensation of the electrical performance of the covered antenna

Method used

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  • Large-scale antenna dome electrical performance compensation method based on reflector shaping
  • Large-scale antenna dome electrical performance compensation method based on reflector shaping
  • Large-scale antenna dome electrical performance compensation method based on reflector shaping

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Embodiment Construction

[0025] The present invention will be described in further detail below with reference to the accompanying drawings.

[0026] refer to figure 1 , the concrete steps of the present invention are as follows:

[0027] Step 1, calculate the far field of the antenna according to the known aperture field of the antenna.

[0028] (1a) Taking the center of the antenna aperture plane as the origin O, establish a rectangular coordinate system O-xyz on the plane whose aperture plane is xy, and calculate the far field field of the antenna according to the known antenna aperture field distribution E(x,y) Value F(θ,φ):

[0029] F ( θ , φ ) = ∫ ∫ S E ( x , y ) e jk 0 ...

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Abstract

The invention discloses a large-scale antenna dome electrical performance compensation method based on reflector shaping, and aims to solve the problem that an antenna dome excessively affects antenna electrical performance. According to the technical scheme, the method includes calculating antenna far field according to aperture field; drawing a far field pattern and extracting electrical performance indicators; calculating the aperture field penetrating the antenna dome; calculating coordinates of points on a shaped reflector; calculating the aperture field penetrating the antenna dome the antenna dome after reflector shaping; calculating the far fields of an antenna with a dome before and after reflector shaping, and drawing far field patterns and extracting electrical performance indicators; comparing the far field patterns and electrical performance indicators of an antenna without a dome, the antenna with the dome before and after reflector shaping, if electrical performance requirements are met, outputting the far field patterns and electrical performance indicators of the antenna without a dome, the antenna with the dome before and after reflector shaping; if not, performing fine-tuning on the shaped reflector, and repeating the processes till the electrical performance meets the requirements. By the aid of the method, the electrical performance of a system of an antenna with a dome can be optimized effectively, and the method can be applied in antenna dome analysis and design.

Description

technical field [0001] The invention belongs to the technical field of radar antennas, in particular to a method for compensating the electrical performance of a radome, which can be used to compensate the electrical performance of a reflector antenna system with a dielectric interlayer type radome. technical background [0002] A radome is a wave-transparent shell that protects the antenna from the natural environment. It is a covering made of natural or artificial dielectric materials, or a specially shaped electromagnetic window composed of a dielectric shell supported by a truss. A well-designed radome, in addition to the functions of protection, conductivity, reliability, concealment and decoration, can also prolong the service life of each part of the entire system, reduce life costs and operating costs, simplify design, and reduce maintenance costs , Ensure the accuracy of the antenna surface and position, and create a good working environment for antenna operators. ...

Claims

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Application Information

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IPC IPC(8): G06F17/50H01Q1/42
Inventor 许万业李鹏段宝岩仇原鹰南瑞亭崔传贞张逸群徐文华刘超邓坤
Owner XIDIAN UNIV
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