Unified Frequency-Dependent Split-Step FDTD Formulations Based on the Complex-Conjugate Pole-Residue Pairs Model

Author

Ramadan, Omar

Author_Institution

Comput. Eng. Dept., Eastern Mediterranean Univ., Mersin, Turkey

Volume

24

Issue

8

fYear

2014

fDate

Aug. 2014

Firstpage

509

Lastpage

511

Abstract

Unified and efficient frequency-dependent split-step finite difference time domain (SS-FDTD) formulations are presented. In the proposed formulations, the complex-conjugate pole-residue (CCPR) pairs model is adopted in the FDTD implementation of the domain´s frequency-dependent relation with the minimal additional auxiliary variables. In addition, the formulations allow modeling different dispersive materials, such as Debye, Drude, and Lorentz, in the same manner. A numerical example is included to show the validity of the formulations.

Keywords

computational electromagnetics; dispersion (wave); dispersive media; finite difference time-domain analysis; CCPR pairs model; complex-conjugate pole-residue pairs model; dispersive materials; split-step finite difference time domain formulations; unified frequency-dependent SS-FDTD formulations; Dispersion; Finite difference methods; Frequency-domain analysis; Materials; Numerical models; Time-domain analysis; Wireless communication; Complex-conjugate pole-residue (CCPR) pairs model; dispersive materials; split-step finite difference time domain (SS FDTD);

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2014.2322439

Filename

6824862