Coupled Azimuthal Potentials for Electromagnetic Field Problems in Inhomogeneous Axially Symmetric Media
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Authors
Morgan, Michael A.
Chang, Shu-Kong
Mei, Kenneth K.
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Date of Issue
1977-05
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Abstract
Classical electromagnetic potential formulations are, with the exceptions of a few special cases of one-dimensional stratification, restricted to use in uniform media. A recently developed potential formulation
that provides a flexible basis for numerical computation of
time-harmonic field problems involving continuously and discretely
inhomogeneous axially symmetric media is the topic of this paper. The
formulation manifests itself in both a differential equation system and,
alternately, a variational criterion. Typical numerical applications include
solutions of scattering by arbitrarily shaped material bodies of
revolution and radiation from inhomogeneously loaded rotationally
symmetric antenna structures. Current numerical investigations by the
authors, using Mei’s unimoment method in conjunction with both
finite-difference and finite-element techniques, have shown the formulation
to be highly feasible for computation of field problems having
dimensions as large as several wavelengths.
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Article
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Electrical Engineering and Computer Science
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Sponsors
This work was sponsored by U.S. Army Mobility Equipment Research and Development Center Contract DAAK02-75C-002
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Citation
IEEE Transactions on Antennas and Propagation, May 1977, Succinct Papers
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This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.