A novel numerical dispersion formulation of the 2D ADI-FDTD method
A novel dispersion formulation of the 2D alternating-direction implicit (ADI) finite-difference time-domain (FDTD) method is presented. The formulation is based on an increasing process analysis of the monochromatic wave in free space. A numerical experiment scheme is designed to verify the accuracy of the proposed formulation. The results obtained from the proposed formulation are in a good agreement with those from the numerical experiments, and the proposed formulation is more accurate than those reported in the literature. (c) 2006 Wiley Periodicals, Inc. Int J RF and Microwave CAE 16: 584-587, 2006.
numerical dispersion adi-fdtd numerical experiment