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Accurate FDTD modelling for dispersive media using rational function and particle swarm optimisation.
- Source :
-
International Journal of Electronics . Jul2015, Vol. 102 Issue 7, p1218-1228. 11p. - Publication Year :
- 2015
-
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. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 00207217
- Volume :
- 102
- Issue :
- 7
- Database :
- Academic Search Index
- Journal :
- International Journal of Electronics
- Publication Type :
- Academic Journal
- Accession number :
- 102121569
- Full Text :
- https://doi.org/10.1080/00207217.2014.966779