Analysis of transient scattering problems using a discontinuous Galerkin method: application to the shielding effectiveness of enclosures with heterogeneous walls
discontinuous Galerkin method; Maxwell's equations; time domain; frequency domain; homogenization; shielding effectiveness
Abstract :
[en] In this paper, different formulations of Maxwell equations are combined for computing the shielding effectiveness of enclosures made from heterogeneous periodic materials. The validity of the homogenized parameters given by Maxwell-Garnett rules in the frequency domain are tested in the time domain using a nodal discontinuous Galerkin method, which uses an interface condition based on analytical solution in the frequency domain to replace a conductive sheet. This interface condition allows to avoid meshing the thin sheet, thus reducing the computational cost. Results of scattering by composite enclosures are presented in the frequency domain thanks to a Fast Fourier Transform.
Disciplines :
Electrical & electronics engineering
Author, co-author :
Boubekeur, Mohamed; Supélec > Laboratoire de Génie Electrique de Paris - LGEP
Kameni, Abelin; Supélec > Laboratoire de Génie Electrique de Paris - LGEP
Pichon, Lionel; Supélec > Laboratoire de Génie Electrique de Paris - LGEP
Modave, Axel ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Geuzaine, Christophe ; Université de Liège - ULiège > Dép. d'électric., électron. et informat. (Inst.Montefiore) > Applied and Computational Electromagnetics (ACE)
Language :
English
Title :
Analysis of transient scattering problems using a discontinuous Galerkin method: application to the shielding effectiveness of enclosures with heterogeneous walls
Publication date :
May 2014
Journal title :
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields
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