Domain-product technique solution for the problem of electromagnetic scattering from multiangular composite cylinders
Domain-product technique solution for the problem of electromagnetic scattering from multiangular composite cylinders
复制标题
多角复合圆柱体电磁散射问题的域积技术解
DOI：
10.1109/tap.2003.816310
复制
发表时间：
2003
影响因子：
5.7
通讯作者：
V. Chumachenko
中科院分区：
文献类型：
--
作者：
V. Chumachenko
本文提出了一种域积方法求解由多个理想导体和无损耗介质组成的任意多面体边界二维结构的电磁散射问题。该结构被假定为由横向磁场或横向电场极化的平面波激励。对于内部和外部子区域，有效的字段表示的形式获得的马蒂厄函数展开。由边界条件得到关于展开系数的无穷矩阵方程组。一个解决方案，该系统被发现使用截断过程。数值例子证明了该技术的有效性，灵活性和能力。在中频范围内，所提出的方法能够以较低的计算成本对相当复杂的结构进行精确的数值分析。
The paper presents a domain-product technique solution for the problem of electromagnetic scattering from a two-dimensional structure composed of multiple perfect conductors and lossless dielectrics with arbitrarily polyhedral boundaries. The configuration is assumed to be excited by a plane wave polarized transverse magnetic or transverse electric to the axis of the cylinders. For both the interior and exterior subregions, efficient field representations are attained in the forms of Mathieu function expansions. A system of infinite matrix equations with respect to the expansion coefficients results from the boundary conditions. A solution to the system is found using a truncation procedure. Numerical examples are presented that demonstrate the validity, flexibility, and capability of the technique. In the middle frequency range, the approach proposed enables accurate numerical analysis of fairly complicated structures with low computational cost.