TY - JOUR
T1 - Low dispersive compact ID-FDTD algorithm for electrically large waveguides
AU - Kim, Hyun
AU - Yook, Jong Gwan
PY - 2012
Y1 - 2012
N2 - A novel compact finite difference time domain (FDTD) scheme is proposed to remedy the anisotropic dispersion characteristic and inaccurate transverse cutoff frequency observed in conventional compact FDTD schemes. The proposed scheme is formulated based on the two-dimensional (2D) isotropic-dispersion finite difference (ID-FD) equation (I. Koh, et al, Novel explicit 2-D FDTD scheme with isotropic dispersion finite-difference time-domain algorithm IEEE Trans. Antennas Propag., vol. 54, no. 11, pp. 3505-3510, Nov. 2006), which is a novel low dispersion finite difference (FD) scheme. The formulation is derived for the scaling factors constrained with both the exact phase constant and cutoff frequency in the transverse domain, and for an optimal weighting factor using the least mean square (LMS) algorithm for the ID-FD equation.
AB - A novel compact finite difference time domain (FDTD) scheme is proposed to remedy the anisotropic dispersion characteristic and inaccurate transverse cutoff frequency observed in conventional compact FDTD schemes. The proposed scheme is formulated based on the two-dimensional (2D) isotropic-dispersion finite difference (ID-FD) equation (I. Koh, et al, Novel explicit 2-D FDTD scheme with isotropic dispersion finite-difference time-domain algorithm IEEE Trans. Antennas Propag., vol. 54, no. 11, pp. 3505-3510, Nov. 2006), which is a novel low dispersion finite difference (FD) scheme. The formulation is derived for the scaling factors constrained with both the exact phase constant and cutoff frequency in the transverse domain, and for an optimal weighting factor using the least mean square (LMS) algorithm for the ID-FD equation.
KW - Compact FDTD
KW - ID-FD equation
KW - low dispersion
KW - transverse cutoff frequency
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U2 - 10.1109/TAP.2012.2207311
DO - 10.1109/TAP.2012.2207311
M3 - Article
AN - SCOPUS:84867391831
SN - 0018-926X
VL - 60
SP - 4973
EP - 4978
JO - IEEE Transactions on Antennas and Propagation
JF - IEEE Transactions on Antennas and Propagation
IS - 10
M1 - 6232447
ER -