Low dispersive compact ID-FDTD algorithm for electrically large waveguides

Hyun Kim, Jong Gwan Yook

Research output: Contribution to journalArticlepeer-review


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.

Original languageEnglish
Article number6232447
Pages (from-to)4973-4978
Number of pages6
JournalIEEE Transactions on Antennas and Propagation
Issue number10
Publication statusPublished - 2012

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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