Preconditioned Finite-Difference Frequency-Domain for Modelling Periodic Dielectric Structures - Comparisons with FDTD

被引：0
|
作者：
Chabory, A. [1 ,3 ]
de Hon, B. P. [1 ]
Schilders, W. H. A. [2 ]
Tijhuis, A. G. [1 ]
机构：
[1] Eindhoven Univ Technol, Dept Elect Engn, POB 513, NL-5600 MB Eindhoven, Netherlands
[2] Eindhoven Univ Technol, Dept Math & Comp Sci, POB 513, NL-5600 MB Eindhoven, Netherlands
[3] ENAC, Dept Elect, Toulouse, France
来源：
2008 EUROPEAN MICROWAVE CONFERENCE, VOLS 1-3 | 2008年
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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：
Finite-difference techniques are very popular and versatile numerical tools in computational electromagnetics. In this paper, we propose a preconditioned finite-difference frequency-domain method (FDFD) to model periodic structures in 2D and 3D. The preconditioner follows from a modal decoupling approximation. Its use involves discrete Fourier transforms (via FFTs). We have set FDFD against an FDTD package for a typical test case, with identical spatial grids. We have observed that computation times for a full frequency sweep are comparable, while the accuracy is slightly better with FDFD.
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页码：599 / +
页数：2
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