An Efficient Method to Reduce the Numerical Dispersion in the HIE-FDTD Scheme

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An Efficient Method to Reduce the Numerical Dispersion in the HIE-FDTD Scheme.pdf (176.64 KB)
Date
2011-01
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Publisher
Scientific Research Publishing
Abstract
A parameter optimized approach for reducing the numerical dispersion of the 3-D hybrid implicit-explicit finite-difference time-domain (HIE-FDTD) is presented in this letter. By adding a parameter into the HIE-FDTD formulas, the error of the numerical phase velocity can be controlled, causing the numerical dispersion to decrease significantly. The numerical stability and dispersion relation are presented analytically, and numerical experiments are given to substantiate the proposed method.
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Keywords
HIE-FDTD, Numerical Dispersion, Weakly Conditionally Stability
Citation
Wireless Engineering and Technology, 2011, 2, 30-36
URI
http://hdl.handle.net/123456789/1070
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Computer Science & Communications