DIFFRACTION AT THICK CURVED LAYERS WITH A NONUNIFORM DIELECTRIC PERMITTIVITY
Author(s) -
Ilya O. Sukharevsky
Publication year - 2019
Publication title -
progress in electromagnetics research b
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.208
H-Index - 47
ISSN - 1937-6472
DOI - 10.2528/pierb18092512
Subject(s) - diffraction , dielectric , materials science , permittivity , dielectric permittivity , relative permittivity , optics , composite material , physics , optoelectronics
In this paper, we obtain an asymptotic solution for the problem of electromagnetic diffraction at a thick curved dielectric layer with a nonuniform dielectric permittivity. We show that, in the case of thick layers, the main asymptotic approximation already comprises the curvature correction, verify the results by comparison with a solution obtained with the integral equation method, and offer to approximate the piecewise constant dielectric permittivity of a stratified layer with a continuous function.
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