二维目标电磁散射计算的一种高精度有限元-边界元混合方法  

A High Accuracy FEM/BEM Hybrid Method for EM Scattering from Two-Dimensional Objects

作　　者：邱兆杰[1] 侯新宇[1] 韦高[1] 许家栋[1] 

机构地区：[1]西北工业大学电子工程系,西安710072

出　　处：《微波学报》2006年第3期1-4,共4页Journal of Microwaves

基　　金：总装十五预研项目(4131003038)

摘　　要：给出了应用于二维目标电磁散射计算的一种高精度有限元-边界元混合方法:1)将八结点曲边四边形二阶等参数单元作为有限元单元,2)运用插值函数法简单而又高精度地计算边界元部分采用二阶单元时的奇异积分。通过数值实验验证了方法的有效性。A high accuracy finite element-boundary element method is presented for EM scattering from two-dimensional structures. The method uses second-order curvilinear quadrilateral nodal elements as the finite elements, and the singular integrals arising from the boundary element method using quadratic elements are computed accurately in a straightforward way by employing interpolatory polynomial functions. The validity of the method is verified by numerical results.

关 键 词：有限元 边界元 混合方法 电磁散射 

分 类 号：TM159[电气工程—电工理论与新技术]