复杂环境中天线辐射方向图的分析  

The Electromagnetic Characteristics of the Antenna System in a Complex Environment

作　　者：周斌[1] 刘其中[1] 黄伟芳[1] 魏文博[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,西安710071

出　　处：《微波学报》2006年第B06期44-47,共4页Journal of Microwaves

摘　　要：采用一致性几何绕射理论(UTD)研究了电大尺寸复杂平台中天线的辐射特性。以点源模型分析了天线受周围电磁环境影响后的辐射方向图,与自由空间方向图的对比说明了受影响后天线辐射特性的变化。与低频算法相比,本文算法有计算速度快、占用内存量很少的优点,可应用于工程中类似平台的多天线系统干扰分析。The electromagnetic characteristics of the antenna system in a complex environment are studied by UTD. The effect of the environment on the patterns of the antenna is analyzed by the model of point source, and the comparison with the patterns in free space indicate the change of the antenna＇s radiation characteristics. The method in this paper has the advantages of high computation speed and little storage over the other algorithms such as MOM and FEM, which make it suitable for other complicated problems large in electrical size.

关 键 词：一致性几何绕射理论 电大尺寸 辐射方向图 

分 类 号：TN820[电子电信—信息与通信工程]