基于阻抗矩阵归一化基函数的表面积分方程矩量法

Method of moments of the surface integral equations based on the impedance-matrix-normalized basis functions

提出了一种基于阻抗矩阵归一化的新型基函数,其构造过程简单易行、计算量和内存需求少且构造过程具有普适性.通过计算实例表明,基于RWG基函数的阻抗矩阵归一化基函数有效地改善了具有边缘、尖顶、精细结构理想导体目标电场积分方程矩量法的阻抗矩阵条件数、显著地降低了阻抗矩阵方程迭代法求解的迭代次数.

This paper presents a novel impedance-matrix-normalized basis functions （IMNBFs）, which can be designed simply and easily. The method to construct MNBFs is general and constructed procedure needs little computational costs. The IMNBFs-based method of moments （MoM） of the electric-field integral equations trends to produce well-conditioned impedance matrix, when non-uniform meshes need to discretize perfectly electric conductive （PEC） objects with edges or tips or fine structures, thus convergence of iterative solvers for matrix equations is accelerated obviously.