TDIE计算二维导体目标瞬态远场的新方法  

A Novel Algorithm for the Calculations of Transient Far-fields in TDIE Method for 2-D Conductor Cylinder

作　　者：秦三团[1] 代少玉[2] 龚书喜[1] 

机构地区：[1]西安电子科技大学天线与微波重点实验室,西安710071 [2]西安电子科技大学理学院,西安710071

出　　处：《微波学报》2010年第5期23-26,共4页Journal of Microwaves

基　　金：中央高校基本科研业务费专项资金(72104802)

摘　　要：提出了时域积分方程法(TDIE)求解二维导体目标瞬态散射时远场计算的新方法,该方法基于自由空间的二维推迟势,无需传统的两次傅里叶变换,表达形式简洁,易于编程计算。数值算例中,分别计算了TM和TE高斯脉冲平面波照射情况下,二维金属角反射器(开放体)和二维金属圆柱(闭合体)的瞬态远场,计算结果与频域矩量法(MOM)结合傅立叶逆变换(IDFT)计算的结果进行了比较,二者完全吻合,充分验证了本方法的正确性。A novel method for the calculations of the far fields in the analysis of transient scattering from 2-D PEC cylinder using the time domain integral equation（TDIE） is proposed.Based on the 2-D retarded potential in free space,the method avoids the traditional double Fourier transform,and is concise and easy to program.In numerical examples,the far fields of transient scattering from 2-D conductor bent strip（open structure） and circular cylinder（close structure） illuminated by both TM and TE Gauss plane waves are presented,respectively.The numerical results are compared with those obtained from the method of moment（MOM） associated with the inverse Fourier transform（IDFT）,and both agree well,which verifies the accuracies of the method proposed in this paper.

关 键 词：时域积分方程法 二维 推迟势 瞬态远场 

分 类 号：O441.4[理学—电磁学]