Numerical Dispersion Analysis With an Improved LOD–FDTD Method

Author

Li, Erping ; Ahmed, Iftikhar ; Vahldieck, Ruediger

Author_Institution

Comput. Electromagn. Sect., Inst. of High Performance Comput., Singapore

Volume

17

Issue

5

fYear

2007

fDate

5/1/2007 12:00:00 AM

Firstpage

319

Lastpage

321

Abstract

In this letter, a modified locally one-dimensional finite-difference time-domain (LOD-FDTD) method is proposed. The dispersion behavior is investigated and compared with the conventional LOD-FDTD method. It is found that for a Courant-Friedrich-Levy number equal to 5 the modified LOD-FDTD method performs approximately 20% better than the conventional LOD-FDTD method

Keywords

computational electromagnetics; dispersion (wave); finite difference time-domain analysis; Courant-Friedrich-Levy number; LOD-FDTD method; locally 1D finite-difference time-domain method; numerical dispersion analysis; Central Processing Unit; Computational modeling; Computer simulation; Electromagnetic fields; Error correction; Finite difference methods; Maxwell equations; Microcomputers; Software packages; Time domain analysis; Alternating direction implicit–finite-difference time-domain (ADI–FDTD); Courant–Friedrich–Levy (CFL) limit; FDTD method; locally one-dimensional finite-difference time-domain (LOD–FDTD); numerical dispersion;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2007.895687

Filename

4167908