介质散射的双线性高阶叠层基函数矩量法分析  

MoM analysis on the electromagnetic scattering of dielectric object by using high order bilinear basis function

作　　者：樊振宏[1] 何姿[1] 陈如山[1] 

机构地区：[1]南京理工大学通信工程系,南京210094

出　　处：《电波科学学报》2016年第1期106-109,128,共5页Chinese Journal of Radio Science

基　　金：国家自然科学基金(61431006;61371037);南京理工大学自主科研专项计划(30920140121004)

摘　　要：提出了一种基于双线性思想的高阶基函数降低矩量法分析介质目标电磁散射问题时的未知量.论文给出了双线性高阶叠层基函数的构造过程,并将其应用于介质的面积分方程分析中.数值算例比较了不同阶数时所需未知量以及计算精度,表明该高阶叠层基函数在满足相同积分方程的计算精度时能比低阶基函数节省未知量.High order hierarchical bilinear basis function is proposed to reduce the number of unknowns for the method of moments（MoM）analysis on the electromagnetic scattering of dielectric objects.It combines higher-order vector basis function with bilinear basis function,and is employed to solve the Poggio-Miller-Chang-Harrington-Wu-Tsai（PMCHWT）equation.The number of unknowns and the accuracy are compared between the new basis functions with different orders.Numerical examples show that the proposed method requires relatively less unknowns than the conventional method,and can obtain the same precision.

关 键 词：电磁散射 高阶基函数 矩量法 

分 类 号：O441[理学—电磁学]