遗传算法结合矩量法设计弹上小型宽带天线

遗传算法结合矩量法设计弹上小型宽带天线

内容简介：文中采用矩量法得到天线表面的初始电流分布.然后结合遗传算法优化加载点,控制天线的电流分布,从而获得较理想的宽频性能.采用该方法成功地设计了一种450～900MHz天线及其匹配网络,仿真结果和实测吻合,达到预定目标.证明该方法不仅可以快速优化设计天线,而且具有很高的精度.

Abstract：Due to the potential applications of frequency-hopping and spread-spectrum techniques in the modern military security communications, the development of small broadband omnidirectional antenna is considered as an important component of the communication systems. Using method of moments (MOM), we can get the initial current distribution on the antenna. After the optimization by genetic algorithm (GA), the current distribution on the loaded antenna could be controlled in a specific broadband frequency. So, the loaded antenna has the characteristic of broadband frequency response. A 450～900MHz loaded monopole antenna and corresponding matching network are designed by the approaches, and the calculated results conform to the experiment completely. With MOM and GA, broadband antennas can be designed and optimized accurately and efficiently.

作者：杨卓, 薛正辉, 李伟明,

关键词：宽带天线, 加载天线:矩量法, 遗传算法,