波导缝隙阵天线的快速优化设计  

Fast Optimal Design of the Waveguide Slotted Array

作　　者：谢拥军[1] 辛娟[1] 王鹏[1] 

机构地区：[1]西安电子科技大学天线与微波技术国家重点实验室,陕西西安710071

出　　处：《电子学报》2006年第9期1726-1728,共3页Acta Electronica Sinica

基　　金：新世纪优秀人才支持计划资助(No.NCET-04-0950)

摘　　要：本文利用E lliott设计方程考虑波导缝隙阵天线中单元间的耦合效应,提出“电流分布逼近”作为目标函数,利用遗传优化算法对谐振式波导缝隙阵天线进行方向图优化设计.本文设计了一个4元波导缝隙阵,证明了这种方法是有效的,并完成了一个8元缝隙阵的设计实例.数值结果表明,本文方法相比于传统“方向图逼近”优化方法更加快速有效,并且可以应用到大型的波导缝隙阵的设计之中.A novel fast optimal design method based on genetic algorithm （GA）is given for the rectangular waveguide slotted array. ＂Approaching ideal current＂ cost function is present in this optimal method instead of the ＂Approaching ideal pattern＂ cost function in conventional method, considering the mutual coupling in the waveguide slotted array in the Elliott equations. The results of 4-slot array show the validity of this method, the array of 8-slot is also analyzed. Examples show that this method is much more quick than conventional method based on ＂Approaching ideal pattern＂ optimization, and this method can be used to the large array design.

关 键 词：缝隙阵天线 遗传算法 优化 

分 类 号：TN823.24[电子电信—信息与通信工程]