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Accurate FDTD modelling for dispersive media using rational function and particle swarm optimisation

Title
Accurate FDTD modelling for dispersive media using rational function and particle swarm optimisation
Author
정경영
Keywords
particle swarm optimisation; radio propagation; finite-difference time domain (FDTD) method; electromagnetic analysis; dispersive media; microwave
Issue Date
2015-07
Publisher
TAYLOR & FRANCIS LTD
Citation
INTERNATIONAL JOURNAL OF ELECTRONICS, v. 102, no. 7, Page. 1218-1228
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://www.tandfonline.com/doi/abs/10.1080/00207217.2014.966779http://hdl.handle.net/20.500.11754/26543
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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