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FDTD Dispersive Modeling With High-Order Rational Constitutive Parameters.
- Source :
- IEEE Transactions on Antennas & Propagation; Sep2015, Vol. 63 Issue 9, p4233-4238, 6p
- Publication Year :
- 2015
-
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. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 0018926X
- Volume :
- 63
- Issue :
- 9
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Antennas & Propagation
- Publication Type :
- Academic Journal
- Accession number :
- 110834700
- Full Text :
- https://doi.org/10.1109/TAP.2015.2452961