A novel numerical dispersion formulation of the 2D ADI-FDTD method

作者:Chu Qing Xin*; Wang Lin Nian; Chen Zhi Hui
来源:International Journal of RF and Microwave Computer-Aided Engineering, 2006, 16(6): 584-587.
DOI:10.1002/mmce.20180

摘要

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.