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Absorbing surface impedances of lossy layers in the finite difference time-domain method

Impedances de surface de couches absorbantes en diffÉrences finies dans le domaine temporel

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Abstract

In this paper the time-domain surface impedances of an homogeneous absorber layer, are given for the vertical and horizontal polarizations, or respectively for the electric field perpendicular or parallel to the incidence plane. It turns out that the application of the concept in finite difference time-domain (FDTD) in absorbing surface impedances boundary conditions, gives results in good agreement with analytical Fresnel reflection coefficients.

Résumé

Les expressions temporelles des impédances de surface de couches absorbantes homogènes, sont données dans cet article, pour les polarisations verticale et horizontale ou respectivement, pour le champ électrique perpendiculaire ou parallèle au plan d’incidence. Il s’avère que leur application en conditions d’impédances de surface absorbantes, dans une méthode numérique aux différences finies dans le domaine temporel (DFDT), donne de bons résultats par rapport à la méthode analytique des facteurs de réflexion de Fresnel.

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References

  1. Kellali (S.), Jecko (B.), Reineix (A.). Surface impedance boundary conditions at oblique incidence in fdtd.Ann. Télécommunic. (1993),48, no 5–6, pp. 268–276.

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Authors and Affiliations

  1. IRCOM, Equipe électromagnétisme, Faculté des Sciences, URA au CNRS n° 356, 123, rue Albert-Thomas, F-87060, Limoges Cedex, France

    Salah Kellali, Bernard Jecko & Alain Reineix

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  1. Salah Kellali
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  2. Bernard Jecko
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  3. Alain Reineix
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Kellali, S., Jecko, B. & Reineix, A. Absorbing surface impedances of lossy layers in the finite difference time-domain method. Ann. Télécommun. 49, 154–158 (1994). https://doi.org/10.1007/BF02999478

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  • DOI: https://doi.org/10.1007/BF02999478

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