NEW APPROACH TO ELECTROMAGNETIC SCATTERING FROM A CONDUCTIVE DISC-RING STRUCTURE  

作　　者：叶春飞 章文勋 

机构地区：[1]State Key Laboratory of Millimeter Waves, Southeast University [2]State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210018

出　　处：《Journal of Electronics(China)》1995年第2期168-176,共9页电子科学学刊（英文版）

摘　　要：A one-dimensional modified integral equation for electromagnetic scattering from a metallic concentric disc-ring structure is derived by using Fourier expansion and separating the contribution of charge density from conventional EFIE. In the case of normal incidence, the derived equation is very simple and easy to be solved numerically regardless of the electric dimension of the structure. The comparison between the data of RCS of a disc by using this method and analytical method shows the effectiveness of this approach. Numerical results are also given for current distributions and the scattered fields for a disc-ring structure.A one-dimensional modified integral equation for electromagnetic scattering from a metallic concentric disc-ring structure is derived by using Fourier expansion and separating the contribution of charge density from conventional EFIE. In the case of normal incidence, the derived equation is very simple and easy to be solved numerically regardless of the electric dimension of the structure. The comparison between the data of RCS of a disc by using this method and analytical method shows the effectiveness of this approach. Numerical results are also given for current distributions and the scattered fields for a disc-ring structure.

关 键 词：Electromagnetic scattering Radar CROSS-SECTION INTEGRAL equation Disc-ring structures 

分 类 号：TM15[电气工程—电工理论与新技术]