Title :
Dispersion-Error Optimized ADI FDTD
Author :
Ahmed, Iftikhar ; Chen, Zhizhang
Author_Institution :
Microwave & Wireless Res. Lab., Dalhousie Univ., Halifax, NS
Abstract :
ADI-FDTD method is efficient in solving fine RF/microwave structures due to its unconditionally stable characteristics. However, it suffers from large dispersions with the increase of time steps. In this paper, an error-minimized ADI-FDTD method is proposed that is less dispersive as compared to the conventional ADI-FDTD method. It is formulated in such a way that no extra memory or simulation time is required in its computations. It is still unconditionally stable but with much less dispersion errors. Numerical examples are presented to demonstrate its efficiency and accuracy
Keywords :
Maxwell equations; computational electromagnetics; dispersion (wave); finite difference time-domain analysis; Maxwell equations; dispersion-error optimized ADI-FDTD method; microwave structures; radiofrequency structures; Circuit simulation; Computational modeling; Differential equations; Error correction; Finite difference methods; Maxwell equations; Microwave theory and techniques; Optimization methods; Radio frequency; Time domain analysis; ADI-FDTD; CFL; Dispersion; FDTD; Maxwell´s equations; dispersion optimized FDTD;
Conference_Titel :
Microwave Symposium Digest, 2006. IEEE MTT-S International
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-9541-7
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2006.249440
