Title :
A Novel Low-Dispersive Collocated FDTD Method: 3-D Case
Author :
Bommaraju, Chakrapani ; Marklein, Rene ; Ackermann, Wolfgang ; Schuhmann, Rolf ; Weiland, Thomas
Author_Institution :
Inst. fur Theorie Elektromagnetischer Felder, Technische Univ. Darmstadt
Abstract :
A novel optimally accurate second-order finite-difference time-domain method was previously presented for the 1D and 2D cases. In this paper that approach is extended to the 3D case. The dispersion relation and convergence of a modified finite-difference time-domain method (MFDTD) which has fourth order convergence and excellent broadband characteristics, are presented. The accuracy of FDTD, Fang(4,4) are compared with that of the MFDTD, via direct evaluation of the dispersion relation. Convergence of the FDTD and the MFDTD are also examined
Keywords :
convergence; electromagnetic waves; finite difference time-domain analysis; 3D case; broadband characteristics; dispersion relation; fourth order convergence; low-dispersive collocated FDTD method; modified finite-difference time-domain method; optimally accurate second-order finite-difference time-domain method; Computer aided software engineering; Convergence; Difference equations; Dispersion; Finite difference methods; Partial differential equations; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium 2006, IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
1-4244-0123-2
DOI :
10.1109/APS.2006.1711448
