Generalized impedance boundary conditions for thin dielectric coatings with variable thickness

被引：22

作者：

Aslanyurek, B. ^{[1
]}

Haddar, H. ^{[2
]}

Sahinturk, H. ^{[1
]}

机构：

[1] Yildiz Tech Univ, Dept Engn Math, Istanbul, Turkey

[2] Ecole Polytech, CMAP, INRIA Saclay Ile France, F-91128 Palaiseau, France

来源：

WAVE MOTION | 2011年 / 48卷 / 07期

关键词：

Scattering problems; Electromagnetism; Asymptotic models; Generalized impedance boundary conditions; GIBC Thin coatings; SCATTERING; DOMAIN; WAVES;

D O I：

10.1016/j.wavemoti.2011.06.002

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

We derive the so-called Generalized Impedance Boundary Conditions (GIBC) that model thin dielectric coatings with variable width located on a perfect electric or magnetic conducting surface. We treat the 2-D electromagnetic problem for both TM and TE polarizations. The expressions of the GIBCs are obtained up to the third order (with respect to the coating width). The order of convergence is numerically validated through various numerical examples using a finite element type method. Particular attention is given to the cases where the inner boundary has corner singularities. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：681 / 700

页数：20

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