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FDTD Dispersive Modeling With High-Order Rational Constitutive Parameters

Title
FDTD Dispersive Modeling With High-Order Rational Constitutive Parameters
Author
정경영
Keywords
Dispersive media; finite-difference time-domain (FDTD) methods; numerical stability
Issue Date
2015-09
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v. 63, NO 9, Page. 4233-4238
Abstract
In this work, we present a dispersive finite-difference time-domain (FDTD) algorithm using a four-pole complex rational function (CRF). For the sake of a better curve fitting of the four-pole CRF dispersion model, we use a particle swarm optimization technique. We also discuss an efficient memory storage strategy using a state-space approach. The numerical aspects of four-pole CRF-FDTD, the numerical accuracy and the numerical stability, are investigated in detail. Numerical examples are used to validate four-pole CRF-FDTD and numerical stability issues are discussed in detail. We also discuss the computational accuracy and the computational efficiency of an arbitrary N-pole CRF-FDTD.
URI
http://ieeexplore.ieee.org/abstract/document/7150341/http://hdl.handle.net/20.500.11754/27687
ISSN
0018-926X; 1558-2221
DOI
10.1109/TAP.2015.2452961
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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