一种多层格林函数插值方法在三维空间中高效构造二维周期PEC结构的EFIE MoM-matrix

2016 International Conference on Electromagnetics in Advanced Applications (ICEAA) Pub Date : 2016-09-01 DOI:10.1109/ICEAA.2016.7731457

P. Joma, V. Lancellotti, M. V. van Beurden

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引用次数: 0

摘要

对于二维周期装置中完全导电物体的散射，我们采用了表面积分方程、格林函数的埃瓦尔德表示和矩量法。对于中等大小的矩阵，我们观察到计算时间主要由矩阵元素的计算决定。通过在Chebyshev网格上采用基于拉格朗日插值的Green函数的多级分解，我们证明了与原始MoM计算相比，总体计算时间可以减少73%。

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A multilevel green function interpolation method to efficiently construct the EFIE MoM-matrix for 2D-periodic PEC structures in 3D space

For scattering by perfectly conducting objects in a two-dimensionally periodic setup we employ a surface-integral equation, the Ewald representation of the Green function, and the Method of Moments (MoM). For moderate-size matrices, we observe that the computation time is dominated by the computation of the matrix elements. By employing a multi-level decomposition of the Green function based on Lagrange interpolation on a Chebyshev grid, we demonstrate that the overall computation time can be reduced by 73% compared to the original MoM computation.

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2016 International Conference on Electromagnetics in Advanced Applications (ICEAA)

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