A fast converging series expansion for the 2-D periodic Green's function based on perfectly matched layers

被引：19
|
作者：
Rogier, H [1 ]
De Zutter, D [1 ]
机构：
[1] Univ Ghent, Dept Informat Technol, B-9000 Ghent, Belgium
来源：
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES | 2004年 / 52卷 / 04期
关键词：
electromagnetic propagation in nonhomogeneous media; Green's function; integral equations; lossy media; periodic structures;
D O I：
10.1109/TMTT.2004.825636
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：
A new formalism based on perfectly matched layers (PMLs) is proposed to derive a fast converging series expansion for the two-dimensional periodic Green's function of layered media. The series combines a modal expansion for the waveguide formed by the layered medium terminated by PMLs with a truncated periodic Green's function series in the spatial domain. The efficiency of the new approach is illustrated by studying the scattering by a grid of metallic wires, both in free space and embedded in a dielectric slab. It is shown that the new technique results in a significant speed up compared to existing approaches.
引用
收藏
页码：1199 / 1206
页数：8
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