基于有限元对双负介质覆盖导体方柱的宽带散射特性分析  

Analysis of broadband scattering characteristic of metallic square cylinders covered by double negative metamaterials based on FEM

作　　者：王璐[1] 沈琛[1] 

机构地区：[1]合肥师范学院公共计算机教学部,安徽合肥230061

出　　处：《合肥工业大学学报（自然科学版）》2014年第8期954-956,共3页Journal of Hefei University of Technology：Natural Science

基　　金：合肥师范学院自然科学研究一般资助项目(2012kj05)

摘　　要：文章应用有限元-边界积分法分析了双负介质覆盖导体方柱的电磁散射。与相关文献结果对比验证了该算法和程序的正确性。计算表明:由于模拟的双负介质是匹配介质,其吸波性能要优于等离子体,适当选取双负介质参数,可以使双负介质包层有效地减小目标的雷达回波。The finite element method （FEM ） in conjunction with boundary integral method （BIE） is used to analyze electromagnetic scattering characteristic of metallic square cylinders covered by double negative metamaterials .The calculation result is coincident with the results in the related literature . Because of double negative metamaterial’s impedance matched to the free space ,its property of ab-sorbing electromagnetic wave is better than that of plasma .The radar cross section（RCS） of the ob-ject can be effectively reduced by properly selecting double negative metamaterial ’s parameters .

关 键 词：双负介质 有限元-边界积分法 电磁散射 雷达散射截面 

分 类 号：TN011[电子电信—物理电子学]