Method and system for calculating resonant resistance of rectangular patch microstrip antenna

Abstract

The invention discloses a method and system for calculating the resonant resistance of a rectangular patch microstrip antenna. The method includes the steps that the physical dimensions of a rectangular patch and the parameters of a dielectric substrate are determined; the extension length deltaL and the extension width deltaW which are generated after the fringe field effect of the rectangular patch is considered are calculated; the resonant frequency f0 and the quality factor Qt are calculated; simulated analysis is carried out based on the electromagnetic numerical simulation technology to obtain resonant resistance; the resonant resistance of the rectangular patch microstrip antenna is obtained through fitting based on a formula; whether or not the relative error between the resonant resistance obtained through formula calculation and the resonant resistance obtained through simulation is smaller than a set threshold value, and if yes, the corresponding resonant resistance is determined. By means of the method and system, the calculation accuracy is improved, the antenna matching efficiency is improved, the antenna design period is shortened, and the method and system are suitable for a wide dielectric constant and electrical thickness range of the rectangular patch microstrip antenna; besides, the resonant resistance of the rectangular patch microstrip antenna which feeds at an arbitrary position can be effectively judged.

Description

technical field [0001] The invention relates to antenna technology in the field of radio communication, in particular to a method and system for calculating the resonant resistance of a rectangular patch microstrip antenna. Background technique [0002] For radio communication systems, antennas are indispensable, and microstrip antennas are favored by people for their advantages of small size, light weight, low profile, easy integration and low cost. Resonance resistance is one of the important parameters of microstrip antenna. If the resonant resistance analysis is inaccurate, it will affect the matching of the antenna, and then affect other performance parameters of the antenna and the performance of related radio frequency circuits. Therefore, only when the resonant resistance of the microstrip antenna is known accurately can the antenna be effectively designed. The current calculation methods for the resonant resistance of rectangular patch microstrip antennas are not ...

AI Technical Summary

Problems solved by technology

[0003] In view of the defects in the prior art, the purpose of the present invention is to provide a method for calculating the resonant resistance of a rectangular patch microstrip antenna, which overcomes the problem of low accuracy in calculating the resonant resistance of a rectangular patch microstrip antenna in the prior art , and provide a more accurate calculation method for the resonant resistance of the rectangular patch microstrip antenna

Images