Preconditioned finite-difference frequency-domain for modeling periodic dielectric structures - comparisons with FDTD

Alexandre Chabory 1, 2 B.P. De Hon 2 W.H.A Schilders 3 A.G. Tijhuis 2
1 ENAC - Ecole Nationale de l'Aviation Civile
2 Department of Electrical Engineering [Eindhoven]
3 Department of Mathematics and Computer Science
Abstract : 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.
Keywords : computational electromagnetics dielectrics discrete Fourier transforms finite difference methods flexible printed circuits frequency packaging periodic structures testing time domain analysis
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Communication dans un congrès
EuMC 2008, 38th European Microwave Conference, Oct 2008, Amsterdam, Netherlands. pp 829-832, 2008, 〈10.1109/EUMC.2008.4751581〉
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Dernière modification le : jeudi 17 janvier 2019 - 11:16:10
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Alexandre Chabory, B.P. De Hon, W.H.A Schilders, A.G. Tijhuis. Preconditioned finite-difference frequency-domain for modeling periodic dielectric structures - comparisons with FDTD. EuMC 2008, 38th European Microwave Conference, Oct 2008, Amsterdam, Netherlands. pp 829-832, 2008, 〈10.1109/EUMC.2008.4751581〉. 〈hal-01022228〉

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