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Some second-kind integral equations in electromagnetism

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2006-15.pdf (303.8Kb)
Date
2006
Publisher city
Paris
Publisher
Université Paris-Dauphine
Collection title
Cahiers du CEREMADE
Collection Id
2006-15
Dewey
Analyse
Sujet
iterative Krylov subspace solver; second-kind integral equation; high-frequency; transparent operator; Maxwell equations
URI
https://basepub.dauphine.fr/handle/123456789/6767
Collections
  • CEREMADE : Publications
Metadata
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Author
Darbas, Marion
Type
Document de travail / Working paper
Item number of pages
21
Abstract (EN)
We address the derivation of new second-kind combined field integral equations for the Krylov iterative solution of high-frequency electromagnetic scattering problems by a perfect conductor. The proposed formulations extend the well-known Brakhage-Werner and Combined Field Integral Equations and improve the convergence properties of their numerical solution through a Krylov iterative method. We prove that these integral equations are well-posed for any frequency. Preliminary experiments with spherical harmonics in the case of a spherical scatterer illustrate the good behavior of a Krylov iterative solver used for computing the solution of these new integral equations relatively to an increase of the frequency or/and to the presence of a large number of vectorial spherical harmonics.

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