TEM喇叭天线阵列单元互耦对阵列辐射特性的影响  

Influence of the mutual coupling between the element of TEM horn arrays on far-field radiation

作　　者：廖勇[1] 孟凡宝[1] 周海京[2] 杨周炳[1] 马弘舸[1] 李科[1] 谢平[1] 

机构地区：[1]中国工程物理研究院应用电子学研究所,四川绵阳621900 [2]北京应用物理与计算数学研究所,北京100088

出　　处：《强激光与粒子束》2003年第12期1213-1216,共4页High Power Laser and Particle Beams

基　　金：国家863计划项目资助课题

摘　　要：　应用FDTD方法分析TEM喇叭天线阵列的瞬态辐射特性,分析了阵列单元之间的互耦对天线阵列远场辐射的影响。当TEM喇叭天线阵列单元沿E面叠状排列,阵元间互耦可以改善阵列的低频辐射;沿H面排列的槽状线阵或平面方阵不利于阵列的低频辐射的改善。用半TEM喇叭天线组成槽状排列和叠状排列的二元线阵和四元线阵,进行了相应的原理性实验,实验结果与理论数值模拟基本一致。This paper analyzes transient radiation of transverse electronmagnetic(TEM) horn antenna arrays with FETD method. Influence of the mutual coupling between the elements on far-field radiation is analyzed. The radiation performance at lower frequencies can be improved using the stacked TEM-horn configuration and decreased using rain gutter and square plane TEM-horn configuration. Rain gutter and stacked two-element of half TEM-horn arrays and four-element of half TEM-horn arrays were investigated by simulation and experiments. Experiments of TEM-horn array verified the result of the FDTD simulations.

关 键 词：FDTD方法 TEM喇叭天线阵列 互耦 

分 类 号：TN822.8[电子电信—信息与通信工程]