MM-PO分析电大天线-载体系统的电磁特性

针对电大尺寸目标体的电磁散射和辐射特性,在以处理表面积分方程的矩量法(Moment method,MM)为代表的低频法基础上,将物理光学法(Physical Optical Method,PO)与之有机结合起来,构成MM-PO混合法,对局部区域较为平坦的大型反射面天线、阵列以及载体系统电磁辐射或散射特性进行了仿真研究。结果表明该混合法对于快速有效地分析该类问题具有良好的适用性。

Fast Analysis on Electromagnetic Characteristic of Electric Large Size Antenna-platform System Using MM-PO

The electromagnetic characteristic of electric large size antenna and array is a hot topic in electromagnetic field.Moment method(MM) is an efficient approach to solve surface integral equations,which is discrete by RWG basis function.MM can almost solve a series of electromagnetic characteristic problem of all kinds of objects.The Physical Optical method(PO),which is a high frequency method,can analyze the electromagnetic problem of convex and adjunctive objects,whose region is gently metabolic.A hybrid MM-PO method can effectively deal with the radiation and scattering problem of electric antenna,array and platform system whose local region has smooth variety.Results show that the hybrid method can fast and highly efficiently solve the kind of problem with favorable applicability.