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.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
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
