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http://dx.doi.org/10.5515/JKIEES.2013.13.3.158

Extremely Low Numerical Dispersion FDTD Method Based on H(2, 4) Scheme for Lossy Material  

Oh, Il-Young (School of Electrical and Electronic Engineering, Yonsei University)
Hong, Yongjun (Agency for Defense Development)
Yook, Jong-Gwan (School of Electrical and Electronic Engineering, Yonsei University)
Publication Information
Journal of electromagnetic engineering and science / v.13, no.3, 2013 , pp. 158-164 More about this Journal
Abstract
This paper expands a previously proposed optimized higher order (2, 4) finite-difference time-domain scheme (H(2, 4) scheme) for use with lossy material. A low dispersion error is obtained by introducing a weighting factor and two scaling factors. The weighting factor creates isotropic dispersion, and the two scaling factors dramatically reduce the numerical dispersion error at an operating frequency. In addition, the results confirm that the proposed scheme performs better than the H(2, 4) scheme for wideband analysis. Lastly, the validity of the proposed scheme is verified by calculating a scattering problem of a lossy circular dielectric cylinder.
Keywords
Finite-Difference Time-Domain; Higher Order FDTD; Low Dispersion Algorithm; Optimization;
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Times Cited By KSCI : 1  (Citation Analysis)
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