New scaling factors of 2-D isotropic-dispersion finite difference time domain (ID-FDTD) algorithm for lossy media

Title
New scaling factors of 2-D isotropic-dispersion finite difference time domain (ID-FDTD) algorithm for lossy media
Authors
Koh, I.S.
Keywords
finite-difference time-domain (ID-FDTD) methods, numerical analysis, numerical dispersion
Issue Date
2008-02
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Abstract
We modify the 2-D explicit isotropic-dispersion finite-difference time-domain (ID-FDTD) scheme originally proposed for lossless media [1], which can drastically improve the accuracy of the 2-D ID-FDTD scheme for lossy media. The proposed scheme adopts new scaling factors for material properties such as the permittivity, permeability and conductivity. The new scaling factors can generate nearly the exact phase velocity and attenuation factor of a lossy medium for a single frequency. For the validation of the proposed scheme, two scattering problems are considered.
URI
http://dspace.inha.ac.kr/handle/10505/1576
ISSN
0018-926X
Appears in Collections:
College of Engineering(공과대학) > Electronic Engineering (전자공학) > Journal Papers, Reports(전자공학 논문, 보고서)
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