Initiative reflecting plane antenna electrical behavior prediction method

Abstract

The invention discloses an electrical property prediction method of an active reflector antenna, which mainly solves the problem that the electrical properties are difficult to be told in advance when adjusting a panel of the active reflector antenna. The method has processes of: obtaining an initial pose of the active panel based on basic structure parameters of the antenna and the partitioning condition of the active panel; calculating the phase difference of sampling nodes selected on a single panel to synthesize the phase difference of the single panel and finally synthesize the phase difference of the whole antenna reflector; calculating the electric field distribution in the antenna far zone by utilizing gauss integral formulas for quadrilateral elements and getting a directional pattern and related electrical parameters of the antenna; judging whether the electrical parameters can meet the design requirements of the antenna, if can, outputting the electrical parameters and poseinformation of the single panel, if not, adjusting the active panel and repeating the previous analysis process until the electrical properties meet the demand. The simulation result shows that the method can be applied to the electrical property predictions of antennae with different frequency ranges and be used to guide the panel adjustment of the active reflector antenna and the electrical property analysis.

Description

technical field The invention belongs to the technical field of radar antennas, in particular to an antenna electrical performance prediction method, which can be used to guide panel adjustment and electrical performance analysis of active reflector antennas. Background technique Planar antenna is a widely used antenna form in the fields of communication, radar and radio astronomy. With the development of technology, the aperture of the reflector antenna is getting bigger and bigger, and the frequency band is getting higher and higher. The larger the aperture, the higher the frequency band, the more prominent the advantages of the reflector antenna. In 1946, the University of Manchester in the United Kingdom built a fixed parabolic radio telescope with a diameter of 66.5 meters; in the 1960s, the United States built a parabolic radio telescope with a diameter of 305 meters in the town of Arecibo, Puerto Rico; An omnidirectional rotating parabolic radio telescope with a di...

AI Technical Summary

Problems solved by technology

The purpose of the present invention is to solve the problem that it is difficult to predict the electrical performance of the active reflector antenna in the prior art, and proposes a method for predicting the electrical performance of the active reflector antenna, based on the geometric optics method and the quadrilateral unit Gaussian integral formula, to realize the active reflector Prediction of Electrical Performance of Surface Antennas

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