用复射线法分析二维反射面天线的电磁散射  

Complex Ray Analysis of Electromagnetic Scattering for a Two-dimensional Reflecting Antenna

作　　者：阮颖铮[1] 邓书辉[1] 

机构地区：[1]电子科技大学

出　　处：《电子学报》1991年第3期78-83,共6页Acta Electronica Sinica

基　　金：机电部电科院;航天部南昌飞机制造公司资助

摘　　要：本文用一组复源点产生的高斯波束来拟合入射的局部均匀平面波,根据复射线理论和一致性绕射理论,得出了求解二维圆柱形凹反射面的散射场和雷达截面积(RCS)的理论公式,给出了水平和垂直极化时的计算结果,并与其它方法所得结果进行了比较。The incident plane wave is expanded as a set of Gaussian beams. Then, the theoretical analysis for a two-dimensional concave reflector is completed and the formulae of scattering field and radar cross section are derived by means of complex ray tracing and paraxial approximation respectively, combined with the uniform theory of diffraction. The numerical results are obtained for both horizontal and vertical polarezations. The results from complex ray theory agree very well with those from Geometrical Optics.

关 键 词：面天线 复射线法 分析 电磁散射 

分 类 号：TN823.27[电子电信—信息与通信工程]