【作者】 王钰； 邹宇甲； 丁宁； 党晓杰； 朱明达； 刘亚飞；

【Author】 WANG Yu;ZOU YUjia;DING Ning;Dang Xiao jie;ZHU Ming da;Shaanxi Key Laboratory of Large-scale Computation Electronmagnetic,Xidian University;

【机构】 西安电子科技大学陕西省超大规模电磁计算重点实验室；

【摘要】 在本文中,我们将多尺度Rao-Wilton-Glisson(RWG)基函数应用于以一种基于微分面导纳算子的单源面积分方程中计算介质体的散射问题。多尺度RWG基函数在继承RWG基函数性质的同时,还可以支持非共形网格。我们将多尺度RWG基函数用于粗网格和细网格的连接处,增加了网格生成的灵活性,对于多尺度目标降低了网格生成的难度。同时基于微分面导纳算子的单源面积分方程只需要一种面电流密度,因此降低了计算时间和阻抗矩阵存储消耗。两种方法的结合非常适用于计算多尺度介质的散射问题。数值算例证明了本文提出方法的正确性和优势。更多还原

【Abstract】 In this paper,Multibranch Rao-Wilton-Glisson Basis Functions(MB-RWG) are applied to a single-source surface integral equation based on differential surface admittance operators to calculate the scattering problem of dielectric targets.The MB-RWG basis function has similar properties to the RWG basis function.Moreover,it can be conveniently used in the connection of coarse mesh and dense mesh,increasing the flexibility of grid generation.The single-source surface integral equations based on differential surface admittance operators require only a single current density.Therefore,reduced memory consumption and computation time can be achieved.The combination of the two approach is suitable for multi-scale dielectric.Numerical example demonstrates the effectiveness and advantage of the proposed method.更多还原