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Accurate FDTD Modeling for Dispersive Media Using Rational Function and Particle Swarm Optimization

Title
Accurate FDTD Modeling for Dispersive Media Using Rational Function and Particle Swarm Optimization
Author
최재훈
Keywords
electromagnetic analysis; microwave; radio propagation; dispersive media; finite-difference time domain (FDTD) method; particle swarm optimisation
Issue Date
2014-10
Publisher
TAYLOR & FRANCIS LTD
Citation
International journal of electronics, 102권, 7호, 1218p ~ 1228p
Abstract
This article presents an accurate finite-difference time domain (FDTD) dispersive modelling suitable for complex dispersive media. A quadratic complex rational function (QCRF) is used to characterise their dispersive relations. To obtain accurate coefficients of QCRF, in this work, we use an analytical approach and a particle swarm optimisation (PSO) simultaneously. In specific, an analytical approach is used to obtain the QCRF matrix-solving equation and PSO is applied to adjust a weighting function of this equation. Numerical examples are used to illustrate the validity of the proposed FDTD dispersion model.
URI
http://onlinelibrary.wiley.com/doi/abs/10.4218/etrij.13.0212.0491http://hdl.handle.net/20.500.11754/50656
ISSN
0020-7217; 1362-3060
DOI
10.1080/00207217.2014.966779
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ELECTRONIC ENGINEERING(융합전자공학부) > Articles
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