Asymptotic analysis of a line source diffraction by a perfectly conducting half-plane in a bi-isotropic medium

Details Asymptotic analysis of a line source diffraction by a perfectly conducting half-plane in a bi-isotropic medium Asymptotic analysis of a line source diffraction by a perfectly conducting half-plane in a bi-isotropic medium

2005-09-08

arxiv.org/abs/math-ph/0509012v1

Progress in Electromagnetics Research, PIER 58, 271-283, 2006

Physics

Mathematical Physics

18 pages

Scientific paper

This paper is concerned with the diffraction of an electromagnetic wave by a perfectly conducting half-plane in a homogeneous bi-isotropic medium (asymptotically). Similar analysis in a source-free field is done in Asghar,S. and Lakhtakia, A., (1994), Plane-wave diffraction by a perfectly conducting half-plane in a homogeneous bi-isotropic medium. Int. J Appl. Electromagnetics in materials,5,(1994), 181-188. In this paper attention is focused on the wave coming from a line source. The objective is to study the scattering of an electromagnetic wave from the boundary of a half-plane and thereby to provide a theoretical framework for the line source diffraction asymptotically. In far field approximation it is shown that an incident wave coming from a line source behaves like a plane wave. The scattered field is calculated by using the Fourier transform and the Wiener-Hopf techniques. The scattered field in the far zone is determined by using contour integration.

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