Title :
Finite-difference time-domain field approximations for thin wires with a lossy coating
Author :
Boonzaaier, J.J. ; Pistonius, C.W.I.
fDate :
4/1/1994 12:00:00 AM
Abstract :
Computation of the scattering and radiation by thin wires with a nondispersive lossy coating using the finite-difference time-domain method is discussed. The time-domain relationship between the electric fields perpendicular to a lossy material boundary is derived and a `subcell´ approach is followed which allows the spatial grid size to be larger than the wire radius. Radiated and scattered time-domain fields are transformed to the frequency domain by means of a discrete Fourier transform so that the results can be compared to those obtained using the method of moments
Keywords :
antenna arrays; antenna theory; coatings; dielectric losses; dipole antennas; electric fields; electromagnetic wave scattering; finite difference time-domain analysis; loop antennas; wires (electric); discrete Fourier transform; electric fields; finite-difference time-domain field approximations; lossy material boundary; method of moments; nondispersive lossy coating; radiation; scattering; spatial grid size; subcell approach; thin wires; wire radius;
Journal_Title :
Microwaves, Antennas and Propagation, IEE Proceedings
DOI :
10.1049/ip-map:19949903
