Solving Scattering by Multilayer Dielectric Objects Using JMCFIE-DDM-MLFMA

Solving Scattering by Multilayer Dielectric Objects Using JMCFIE-DDM-MLFMA
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使用 JMCFIE-DDM-MLFMA 求解多层电介质物体的散射

DOI:
10.1109/lawp.2014.2329850
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发表时间:
2014-06
影响因子:
4.2
通讯作者:
Nie, Zaiping
Nie, Zaiping
中科院分区:
计算机科学2区
文献类型:
--
作者:
Tian, Mi;Zhao, Ran;Wei, Xiang;Nie, Zaiping

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本文提出了一种结合非共形、非重叠区域分解法(DDM)和电流/磁流组合场积分方程(JMCFIE)的混合方法来求解三维多层介质目标的散射问题。根据材料分布将原结构分解为若干个封闭的子域,在每个子域上建立JMCFIE。在所提出的方法的主要成分是使用罗宾型传输条件(TC)和非共形,非重叠的区域划分,这显着增加了网格离散的灵活性,提高了解决方案的效率。多层快速多极子算法(MLFMA)也被用来实现矩阵向量积的快速计算。最后,数值结果验证了JMCFIE-DDM-MLFMA的有效性。
In this letter, a hybrid approach combining nonconformal, nonoverlapping domain decomposition method (DDM) and electric/magnetic current combined-field integral equation (JMCFIE) is presented to solve scattering problems of three-dimensional multilayer dielectric objects. The original structure can be decomposed into some closed subdomains according to material distribution, and JMCFIE is formulated in each subdomain. The major ingredients in the proposed approach are the use of the Robin-type transmission conditions (TCs) and nonconformal, nonoverlapping domain partitioning, which remarkably increases the flexibility of mesh discretization and enhances the efficiency of solution. The multilevel fast multipole algorithm (MLFMA) is also applied to realize fast computation of matrix-vector product. Finally, some numerical results are given to demonstrate the validity of the JMCFIE-DDM-MLFMA.
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发表时间: 2008-03
影响因子: 5.7
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