A frequency-dependent PSTD algorithm for general dispersive media

Author

Liu, Qing Huo ; Fan, Guo-Xin

Author_Institution

Klipsch Sch. of Electr. & Comput. Eng., New Mexico State Univ., Las Cruces, NM, USA

Volume

9

Issue

2

fYear

1999

fDate

2/1/1999 12:00:00 AM

Firstpage

51

Lastpage

53

Abstract

Based on the Fourier representation of spatial derivatives, the recursive convolution approaches, and the perfectly matched layer (PML), we develop a pseudospectral time-domain (PSTD) algorithm for electromagnetic problems involving general dispersive media. As a result of the accurate representation of spatial derivatives, the PSTD algorithm for dispersive media requires only a small number of cells per minimum wavelength, significantly reducing the number unknowns. Multidimensional numerical results confirm efficacy of the PSTD algorithm for large-scale inhomogeneous media

Keywords

convolution; dispersion (wave); dispersive media; electromagnetic wave propagation; numerical analysis; time-domain analysis; Fourier representation; PML; electromagnetic problems; frequency-dependent PSTD algorithm; general dispersive media; large-scale inhomogeneous media; perfectly matched layer; pseudospectral time-domain algorithm; recursive convolution; spatial derivatives; Convolution; Dispersion; Finite difference methods; Frequency; Large-scale systems; Multidimensional systems; Nonhomogeneous media; Perfectly matched layers; Sampling methods; Time domain analysis;

fLanguage

English

Journal_Title

Microwave and Guided Wave Letters, IEEE

Publisher

ieee

ISSN

1051-8207

Type

jour

DOI

10.1109/75.755043

Filename

755043