A new FDTD algorithm free from the CFL condition restraint for a 2D-TE wave

Author

Namiki, T. ; Ito, K.

Author_Institution

Res. Center for Comput. Sci., Fujitsu Ltd., Chiba, Japan

Volume

1

fYear

1999

fDate

11-16 July 1999

Firstpage

192

Abstract

A new finite-difference time-domain algorithm, which is based on an alternating direction implicit method, is proposed in order to eliminate the Courant-Friedrich-Levy condition restraint. It is shown that the new algorithm is quite stable numerically even when the CFL condition is not satisfied. Therefore, if the cell size in the computational domain is locally much smaller than the wavelength, this new algorithm is more efficient than conventional FDTD schemes in terms of computer resources such as central processing unit (CPU) time.

Keywords

electromagnetic wave polarisation; finite difference time-domain analysis; numerical stability; parallel plate waveguides; waveguide theory; 2D-TE wave; CFL condition restraint; CPU time; Courant-Friedrich-Levy condition restraint; EM wave propagation; FDTD algorithm; alternating direction implicit method; cell size; central processing unit time; finite-difference time-domain algorithm; numerical stability; parallel plate waveguide model; wavelength; Central Processing Unit; Cities and towns; Electromagnetic fields; Electromagnetic propagation; Equations; Finite difference methods; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium, 1999. IEEE

Conference_Location

Orlando, FL, USA

Print_ISBN

0-7803-5639-x

Type

conf

DOI

10.1109/APS.1999.789114

Filename

789114