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A finite‐difference frequency‐domain approach for solving electromagnetic scattering by conducting bodies of revolution
Author(s) -
Joseph J.,
Gordon R. K.,
Mittra R.
Publication year - 1990
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.4650030504
Subject(s) - curvilinear coordinates , discretization , computation , frequency domain , domain (mathematical analysis) , scattering , mathematical analysis , boundary value problem , finite difference method , partial differential equation , finite difference time domain method , finite difference , boundary (topology) , mathematics , physics , algorithm , geometry , optics
In this paper, the problem of electromagnetic scattering by a conducting body of revolution is solved using the finite‐difference technique in frequency domain. Two coupled partial differential equations, derived based on the coupled azimuthal potentials introduced by Morgan, Chang, and Mei are solved over a domain surrounding the scatterer. Boundary‐fitted curvilinear coordinates, which avoid the problem of staircasing, are used to discretize the domain of computation. Results are presented to demonstrate the accuracy of the method.