Reflector antenna shape optimization method and device

A technology of antenna shaping and optimization methods, applied in antennas, electrical components, etc., can solve problems such as large errors, large calculations, and slow speed, and achieve broad military and civilian prospects and high optimization efficiency.

Inactive Publication Date: 2017-06-09
北京星网卫通科技开发有限公司
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  • Abstract
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Problems solved by technology

Since the grid method needs to interpolate each grid when expressing the reflective surface and calculating the normal vector of the reflective surface, it brings disadvantages such as large error, large amount of calculation, and slow speed in the process of property optimization.

Method used

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  • Reflector antenna shape optimization method and device
  • Reflector antenna shape optimization method and device
  • Reflector antenna shape optimization method and device

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Embodiment Construction

[0052] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0053] Such as image 3 As shown, a reflector antenna shape optimization method, including:

[0054] S1, based on the antenna surface field distribution function and the feed pattern function, the initial curve of the antenna shape is obtained;

[0055] S2. Obtain the radiation characteristics of the antenna based on the initial curve;

[0056] S3. Based on the radiation characteristic and the design requirement value, perform shaping optimization processing on the antenna.

[0057] In the microwave frequency band, reflector antennas are easy to achieve high-gain antennas; however, the standard reflector and the feed can not be well matched in amplitude and phase, resul...

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Abstract

The present invention provides a reflector antenna shape optimization method and device. The method comprises the steps of S1 based on an aperture-field distribution function of an antenna and a pattern function of a feed source, obtaining an initial curve of the shape of the antenna; S2 based on the initial curve, obtaining the radiation characteristic of the antenna; S3 based on the radiation characteristic and a design requirement value, carrying out the shape optimization processing on the antenna. According to the present invention, the reflector configuration is fitted by a Zernike polynomial, the shape variable quantity of an antenna shape reflector and a normal vector on the reflector are solved by an analysis relation, and an antenna surface current is solved, on the basis, the design requirement value is compared according to the radiation characteristic of the antenna, and a genetic algorithm is utilized to optimize the shape of the antenna, so that the optimization efficiency is high, after shaping, the reflector presentation precision is high, the test and processing are easy, and the reflector antenna has wide military and civilian prospects.

Description

technical field [0001] The present invention relates to the technical field of antennas, and more specifically, to a method and device for optimizing the shape of a reflecting surface antenna. Background technique [0002] At present, in long-distance microwave communication, due to the long distance between communication sites and the huge space loss, high-gain antennas are often used for directional communication. Among them, the reflector antenna is often the first choice due to its advantages of easy processing, high gain and stable performance. [0003] In recent years, with the rapid development of microwave communication, space spectrum resources have become increasingly tight, and the problem of mutual interference has become increasingly prominent. The sidelobe characteristics and cross-polarization performance of communication antennas become important factors affecting the utilization of communication resources. [0004] Such as figure 1 As shown, the reflector...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q19/10
CPCH01Q19/10
Inventor 王家齐徐烨烽徐韬张仲毅付国盛吴洪涛邱振怡李翔
Owner 北京星网卫通科技开发有限公司
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