A general UPML FDTD absorbing boundary condition for dispersive media

Author

Wei Bing ; Li Xiao-yong ; Ge De-biao ; Wang Fei

Author_Institution

Dept. of Phys., Xi´dian Univ., Xi´an

fYear

2009

fDate

20-22 April 2009

Firstpage

1

Lastpage

4

Abstract

The dispersion relation and the reflectionless condition are obtained by the Maxwell´s curl equations in a uniaxial anisotropic medium and the phase-matching. Using the shift operator finite difference time domain (SO-FDTD) method and the transform relationship of frequency domain to time domain (jomega replaced by part/partt), an FDTD absorbing boundary condition available for three kinds of general dispersive medium models, i.e. Debye model, Lorentz model and Drude model, is given. The computed results illustrate the generality and the high effectiveness of presented scheme.

Keywords

Maxwell equations; absorbing media; anisotropic media; dispersion relations; dispersive media; electromagnetic wave absorption; finite difference time-domain analysis; Debye model; Drude model; Lorentz model; Maxwell´s curl equations; absorbing boundary condition; dispersion relation; dispersive media models; finite difference time domain method; frequency domain analysis; phase matching; reflectionless condition; shift operator FDTD method; time domain analysis; uniaxial anisotropic medium; FDTD; absorbing boundary condition; dispersive media; shift operator;

fLanguage

English

Publisher

iet

Conference_Titel

Radar Conference, 2009 IET International

Conference_Location

Guilin

ISSN

0537-9989

Print_ISBN

978-1-84919-010-7

Type

conf

Filename

5367533