脉冲平面波斜入射旋转对称体时域电磁散射特性分析  

Scattering of the Body of Revolution Illuminated by Obliquely Incident Pulse Plane Wave

作　　者：关福宏[1] 陈彬[2] 陈海林[2] 方大纲[3] 俞文明[3] 

机构地区：[1]中国科学院微系统与信息技术研究所 [2]工程兵工程学院,南京210007 [3]南京理工大学,南京210094

出　　处：《微波学报》2007年第2期5-8,13,共5页Journal of Microwaves

基　　金：宽带雷达目标特性研究基金(编号:41303020102)

摘　　要：介绍了一种运用旋转对称时域有限差分算法进行电磁散射问题分析的方法。对脉冲平面波在圆柱坐标系下进行分解,应用总场/散射场连接边界引入入射波,采用PML吸收边界条件。运用这种方法分析了有限长度闭合金属圆柱体的散射问题,通过与矩量法分析结果的比较,验证了该方法的正确有效性。This paper presents an efficient method for solution of electromagnetic scattering problems of obliquely incident pulse plane wave on a revolution body with finite-difference time-domain method. The incident pulse plane wave is expanded in cylindrical coordinates and total-field/scattered-field formulation is used to introduce the extended plane wave as the excitation. Scattering from limited length perfect closed cylinder conductor with oblique incidence plane wave is simulated using this method. We validated our implementation of the method by comparing the results with those obtained by the method of moments. The results show both in excellent agreement.

关 键 词：旋转对称体 时域有限差分 总场/散射场 

分 类 号：TM15[电气工程—电工理论与新技术]