DocumentCode
1624142
Title
The dispersion characteristics of the FD-TD method
Author
Choi, Dennis H. ; Roy, Jasmin E.
Author_Institution
Fac. of Eng., Regina Univ., Sask., Canada
fYear
1989
Firstpage
26
Abstract
The numerical phase and group velocity characteristics of the three-dimensional FDTD (finite-difference time-domain) algorithm are derived from the dispersion relation for wave propagation in the TEM, TE, or TM mode. From these dispersion characteristics, numerical errors due to dispersion can be easily assessed and would be used in determining the mesh size and the stability factor in order to minimize such errors.<>
Keywords
difference equations; dispersion (wave); electromagnetic wave propagation; time-domain analysis; TE mode; TEM mode; TM mode; dispersion characteristics; dispersion relation; finite difference time domain algorithm; group velocity characteristics; mesh size; numerical errors; numerical phase characteristics; stability factor; wave propagation; Councils; Cutoff frequency; Dispersion; Finite difference methods; Mesh networks; Rectangular waveguides; Scattering parameters; Stability; Tellurium;
fLanguage
English
Publisher
ieee
Conference_Titel
Antennas and Propagation Society International Symposium, 1989. AP-S. Digest
Conference_Location
San Jose, CA, USA
Type
conf
DOI
10.1109/APS.1989.134602
Filename
134602
Link To Document