电波科学学报2019，Vol.34Issue(1)：76-82,7.DOI:10.13443/j.cjors.2018083002
基于改进的体面积分方程区域分解方法高效求解有限大频率选择表面结构的电磁散射特性
The efficient solution of electromagnetic scattering from finite frequency selective surface by an improved VSIE-DDM
摘要
Abstract
This paper describes an improved non-overlapping and non-conformal volume-surface integral equation domain decomposition method (VSIE-DDM) for the complex finite frequency selection surface (FSS) structures. To efficient electromagnetic analysis of this complex FSS structure, based on the recently developed domain decomposition method (DDM), we first developed different partitioning methods, each subdomain must not be identical and can be arbitrarily shaped. It makes the VSIE-DDM more flexible. Then, due to the fine cells of the FSS and the thin dielectric substrate, the mesh is denser, so a matrix with a larger dimension is obtained. In order to calculate the inverse of the self-coupling matrix of the subdomains of larger dimensions more efficiently, an inner-outer iterative technique is used. Subdomains with larger electric size can be employed, which makes the DDM obtain better convergence and further improve the simulation efficiency. We show several numerical examples to verify the computational performance of the algorithm used in this paper.关键词
体面积分方程方法/区域分解方法/有限大频率选择表面/金属介质复合目标/电磁散射Key words
volume-surface integral equation/domain decomposition method/finite frequency selective surface/metal/dielectric composite objects/electromagnetic scattering分类
信息技术与安全科学引用本文复制引用
李先进,雷霖,陈涌频,江明,荣志,胡俊..基于改进的体面积分方程区域分解方法高效求解有限大频率选择表面结构的电磁散射特性[J].电波科学学报,2019,34(1):76-82,7.基金项目
国家自然科学基金创新研究群体项目 (61721001) （61721001）
国家自然科学基金杰出青年基金 (61425010) （61425010）
国家自然科学基金面上基金 (61871079) （61871079）
国家自然科学基金青年基金 (61701083) （61701083）
