Novel 2D FDTD Scheme with Isotropic Dispersion Characteristics

  • Koh, Il-Seuk ('Graduate School of Information Technology & Telecommunications, Inha University) ;
  • Kim, Hyun (Dept. of Electrical and Electronics Engineering, Yonsei University) ;
  • Yook, Jong-Gwan (Dept. of Electrical and Electronics Engineering, Yonsei University)
  • Published : 2005.11.05

Abstract

A two dimensional (2-D) finite-difference time-domain (FDTD) method based on a novel finite difference scheme is developed to eliminate the numerical dispersion errors. In this paper, numerical dispersion and stability analysis of the new scheme are given, which show that the proposed method is nearly dispersionless, and stable for a larger time step than the standard FDTD method.