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Electromagnetic diffraction by arbitrary-angle impedance wedges

Osipov, Andrey and Senior, Thomas (2007) Electromagnetic diffraction by arbitrary-angle impedance wedges. Proceedings of the Royal Society, 464, pp. 177-195. DOI: 10.1098/rspa.2007.0163. ISSN 1364-5021.

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Abstract

The problem of the diffraction of a plane electromagnetic wave incident at an oblique angle on a wedge of arbitrary angle with general tensor impedance boundary conditions is solved using a semi-analytical approach. Application of Maliuzhinets' method transforms the boundary value problem into coupled functional difference equations (FDEs) for two unknown Sommerfeld integral spectra in a basic strip. By explicitly separating out the singular parts of the spectra in the strip, followed by a partial inversion of the FDEs, we obtain integral representations of the regular parts of the spectra. The regular parts are then expanded in Taylor series in terms of a new variable which conformally maps the strip on to a circle. This expansion reduces the integral representations to algebraic equations for the series coefficients and these are solved numerically. We examine the convergence of the procedure, compare the numerical solution with an available reference solution, and present solutions of new problems.

Document Type:Article
Title:Electromagnetic diffraction by arbitrary-angle impedance wedges
Authors:
AuthorsInstitution or Email of Authors
Osipov, AndreyUNSPECIFIED
Senior, ThomasEECS, the University of Michigan, Ann Arbor, USA
Date:August 2007
Journal or Publication Title:Proceedings of the Royal Society
Refereed publication:Yes
In ISI Web of Science:Yes
Volume:464
DOI:10.1098/rspa.2007.0163
Page Range:pp. 177-195
Series Name:A
ISSN:1364-5021
Status:Published
Keywords:electromagnetic waves, scattering, tensor impedance
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Military Technologies
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Microwave Systems
Microwaves and Radar Institute
Deposited By: Dr. Andrey Osipov
Deposited On:17 Dec 2007
Last Modified:15 Jan 2010 01:35

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