Te Scattering By a Cylindrical Dielectric Obstacle Buried in a Half-Space: a H-Field-Based Solution Method
作者:
M. Lambert,
期刊:
Journal of Electromagnetic Waves and Applications
(Taylor Available online 1998)
卷期:
Volume 12,
issue 9
页码: 1217-1239
ISSN:0920-5071
年代: 1998
DOI:10.1163/156939398X00313
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
Scattering of a transverse electric (TE) wavefield by an inhomogeneous lossy dielectric cylindrical obstacle embedded in a lossy dielectric half-space is investigated. The cylinder is of arbitrary cross-section, and its axis lies parallel to the interface. The formulation involves a domain integral equation of the field obtained by applying the Green's theorem to the appropriate Helmholtz wave equations. The convolution-correlation structure of the formulation is such that the discretized counterpart of the integral equation (provided by the application of a Method of Moments where the obstacle is divided into triangular patches and where the contrast and the H-field are expanded using two different basis functions) can be efficiently handled using a FFT-based conjugate gradient solver. The validity of the approach is illustrated by comparison with results found in the literature.
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