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Conference papers
Preconditioned finite-difference frequency-domain for modeling periodic dielectric structures - comparisons with FDTD
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.
Cited literature [9 references]
https://hal-enac.archives-ouvertes.fr/hal-01022228
Contributor : Laurence Porte <>
Submitted on : Tuesday, September 23, 2014 - 11:50:46 AM
Last modification on : Tuesday, October 20, 2020 - 10:32:06 AM
Long-term archiving on: : Wednesday, December 24, 2014 - 8:50:16 PM
Contributor : Laurence Porte <>
Submitted on : Tuesday, September 23, 2014 - 11:50:46 AM
Last modification on : Tuesday, October 20, 2020 - 10:32:06 AM
Long-term archiving on: : Wednesday, December 24, 2014 - 8:50:16 PM
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