An Efficient Domain Decomposition Laguerre-FDTD Method for Two-Dimensional Scattering Problems

被引：26

作者：

He, Guo-Qiang ^{[1
]}

Shao, Wei ^{[1
]}

Wang, Xiao-Hua ^{[1
]}

Wang, Bing-Zhong ^{[1
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Phys Elect, Chengdu 610054, Peoples R China

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2013年 / 61卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Domain decomposition; Laguerre polynomials; scattering; Schur complement system; ABSORBING BOUNDARY-CONDITIONS; FINITE-DIFFERENCE METHOD; SCHEME; IMPLEMENTATION; EQUATIONS; ABC;

D O I：

10.1109/TAP.2013.2242836

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, an efficient domain decomposition technique is introduced into the unconditionally stable finite-difference time-domain (FDTD) method based on weighted Laguerre polynomials to solve two-dimensional (2-D) electromagnetic scattering problems. The whole computational space is decomposed into multiple subdomains where there is no direct field coupling between any two different subdomains. For the large sparse matrix equation generated by the implicit scheme, the domain decomposition technique transforms this large scale equation into some independent smaller equations. With the total-field/scattered-field boundary and Mur's second-order absorbing boundary condition, the radar cross sections of two 2-D structures are calculated. The numerical examples verify the accuracy and efficiency of the proposed method.

引用

页码：2639 / 2645

页数：7

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