雷达天线罩电磁散射特性研究  

A Study on EM Scattering Characteristics of Radome

作　　者：李西敏[1,2] 童创明[1,2] 付树洪[1,2] 李晶晶[1] 

机构地区：[1]空军工程大学导弹学院,陕西三原713800 [2]东南大学毫米波国家重点实验室,南京210096

出　　处：《现代雷达》2009年第10期95-97,共3页Modern Radar

基　　金：毫米波国家重点实验室基金资助项目K200818/K200907)

摘　　要：采用高阶矩量法研究了常见雷达天线罩的电磁散射特性。首先采用双线性表面几何建模技术对天线罩进行面剖分,再依据等效原理在天线罩表面建立电磁积分方程,最后用基于混合域基函数的高阶矩量法对其离散求解。实例验证,该方法简单易行、结果精确,同时发现天线罩材料的电参数在很大程度上影响了其电磁散射特性。Electromagnetic （EM） scattering characteristics of common radome are studied with high order Method of Moment （MoM）. Firstly, radome surface is segmented using bilinear surface geometrical modeling. Then, EM integral equations are established with equivalence principle. Finally, by means of high order MoM in which mixed-domain basis functions are adopted, the equations are discretized and solved. The results of simulation show that this method is simple and accurate. It is also shown that the permittivity of radome material has great influence on its EM scattering characteristics.

关 键 词：雷达天线罩 电磁散射特性 高阶矩量法 双线性表面 

分 类 号：TN957.8[电子电信—信号与信息处理]