任意形状带隙结构电磁散射特性的精确分析  

Accurate analysis of the scattering characteristics from abitrary slits structure

作　　者：段洪[1] 李建周[1] 侯婷[1] 

机构地区：[1]西北工业大学电子信息学院,西安710129

出　　处：《电子测量技术》2009年第12期52-55,共4页Electronic Measurement Technology

摘　　要：基于RWG基矩量法(MOM)的基本原理,提出了任意形状目标带任意形状缝隙后电磁散射的一体化分析方法。首先,从表面积分方程(SIE)出发,利用等效原理结合矩量法对目标进行了严格的理论建模,推导出适合编程求解的矩阵方程。然后,通过数值仿真并与相关测量结果对比,验证了该算法的有效性。最后分析了直缝隙宽度、深度对模型整体雷达散射截面(RCS)性能的影响,并讨论了折线型缝隙相对于直缝隙的RCS减缩性能。Based on the RWG-based method of moments（MOM）, the integrated algorithm is proposed to calculate the scattering characteristic of arbitrary model with arbitrary slits. First, by employing the equivalence principle and surface integral equations（SIE）, the exact model of the target is established using MOM and matrix equation suitable for programming is derived. Then, the numerical results are presented to validate the effectiveness of the proposed method. Finally, analyzes the radar cross section（RCS） influence of straight slit to the model, and investigates the RCS reduction performance of the polygonal slit in comparison with straight slit.

关 键 词：缝隙结构 矩量法 电磁散射 雷达散射截面 

分 类 号：TM15[电气工程—电工理论与新技术]