任意截面非均匀各向异性阻抗柱体的电磁散射  

Electromagnetic scattering from anisotropic inhomogeneous impedance cylinder of arbitrary shape

作　　者：余定峰[1] 姚菁晶[1] 何思远[1] 朱国强[1] 叶萄[2] 殷红成[3] 

机构地区：[1]武汉大学电子信息学院,湖北武汉430079 [2]江西省信息中心,江西南昌330046 [3]中国航天科工集团公司二院207所,北京100854

出　　处：《电波科学学报》2010年第5期979-983,共5页Chinese Journal of Radio Science

基　　金：国家自然科学基金资助项目(No.60671040);中央高校基本科研业务费专项资金资助

摘　　要：采用矩量法(MoM)结合阻抗边界条件研究了二维无限长任意形状截面非均匀各向异性阻抗柱体的电磁散射特性。散射场通过Stratton-Chu电场积分方程、电流连续性方程和二维格林函数予以求解。当柱体截面矢径的模等于恒定值时,目标退化为二维无限长圆柱,提出的计算方法仍然有效。计算得到的散射宽度结果与解析法、物理光学法(PO)的结果进行了比较,吻合良好。Abstract The electromagnetic scattering from inhomogeneous anisotropic impedance cylinder of arbitrary shape, which the surface satisfies most general impedance boundary, is. investigated by Method of Moments （MoM）. The scattered field is calculated using the electric field integral equation of Stratton-Chu, current continuity equation and two-dimensional Green＇s function. Once the radius of the cylinder is equal to a constant value, the proposed method is still valid. Obtained scattering width results are compared with those obtained by analytical method or physical optics （PO） method, and good agreements are observed.

关 键 词：电磁散射 各向异性 矩量法 阻抗边界条件 

分 类 号：TM15[电气工程—电工理论与新技术]