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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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.
|Title:||Electromagnetic diffraction by arbitrary-angle impedance wedges|
|Journal or Publication Title:||Proceedings of the Royal Society|
|In ISI Web of Science:||Yes|
|Page Range:||pp. 177-195|
|Keywords:||electromagnetic waves, scattering, tensor impedance|
|HGF - Research field:||Aeronautics, Space and Transport|
|HGF - Program:||Aeronautics|
|HGF - Program Themes:||L AR - Aircraft Research|
|DLR - Research area:||Aeronautics|
|DLR - Program:||L AR - Aircraft Research|
|DLR - Research theme (Project):||L - Military Technologies|
|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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