Scattering by a two-layer spherical dielectric object in a lossy medium illuminated by a loop carrying an arbitrary azimuthal mode
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Published:1989-06-01
Issue:6
Volume:67
Page:617-623
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ISSN:0008-4204
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Container-title:Canadian Journal of Physics
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language:en
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Short-container-title:Can. J. Phys.
Author:
Sebak A.,Shafai L.
Abstract
The electromagnetic response of a circular loop antenna in the vicinity of a two-layer dielectric spherical object located in a lossy medium is investigated analytically. For a loop carrying an azimuthally dependent current distribution, a technique based on the dyadic Green's functions is employed to determine the fields in all regions. The formulation is general and can be applied to a wide variety of electromagnetic sources. Numerical results are presented in the near field zone and at low frequencies to determine the effect of the coating on the scattered field and its influence on the degree of detectability of a coated object.
Publisher
Canadian Science Publishing
Subject
General Physics and Astronomy