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http://dx.doi.org/10.5515/KJKIEES.2010.21.7.805

2D Crank-Nicolson FDTD Method Based on Isotropic-Dispersion Finite Difference Equation for Lossy Media  

Kim, Hyun (Dept. of Electrical and Electronics Engineering, Yonsei University)
Koh, Il-Suek (Graduate School of Information and Communication, Inha University)
Yook, Jong-Gwan (Dept. of Electrical and Electronics Engineering, Yonsei University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.21, no.7, 2010 , pp. 805-814 More about this Journal
Abstract
The Crank-Nicolson isotropic-dispersion finite difference time domain(CN ID-FDTD) scheme is proposed based on isotropic-dispersion finite difference(ID-FD) $equation^{[1],[2]}$. The dispersion relation of CN ID-FDTD is derived for lossy media by solving the eigenvalue problem of iteration matrix in spatial spectral domain, in addition, the weighting factors and scaling factors of the CN ID-FDTD scheme are presented for low dispersion error. The CN ID-FDTD scheme makes the dispersion error drastically reduced and shows accurate numerical results compared to the conventional Crank-Nicolson FDTD method.
Keywords
FDTD; Low Dispersion FDTD; Isotropic-Dispersion FDTD Scheme; Crank-Nicolson Scheme;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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