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

fYear

2006

fDate

9-14 July 2006

Firstpage

3789

Lastpage

3792

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium 2006, IEEE

Conference_Location

Albuquerque, NM

Print_ISBN

1-4244-0123-2

Type

conf

DOI

10.1109/APS.2006.1711448

Filename

1711448