An Integral Approach to Electromagnetic Scattering off a Dielectric Wedge
作者:
Kent Davey,
期刊:
Electromagnetics
(Taylor Available online 1987)
卷期:
Volume 7,
issue 2
页码: 167-183
ISSN:0272-6343
年代: 1987
DOI:10.1080/02726348708908177
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The scattering of electromagnetic waves off a dielectric wedge is approached using an integral equation formulation. This formulation seeks to express the interfacial field as a combination of the geometric optics field and a diffraction field made up of a number of Bessel functions. Both null field and interfacial integral equations are used to overspecify the problem and thus, seek a least squares approximation to the interfacial field on the wedge interface. The optimum number of Bessel functions used to specify the diffraction field is sought through a minimization of additional interfacial fields of equations. The unboundedness of the wedge interface problem makes it particularly difficult; the use of global basis functions embodying limiting forms of quasi-analytic formulations appears to be an efficacious approach to computing the scattered field. The methodology is quite general, lending itself to the analysis of a wedge with any dielectric constant, having any arbitrary angle.
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