Characteristic Variables Patching Conditions in Multidomain Pseudospectral Time Domain

Author

Shi, Yan ; Liang, Chang-Hong

Author_Institution

Xidian Univ., Xi´´an

Volume

6

fYear

2007

fDate

6/29/1905 12:00:00 AM

Firstpage

353

Lastpage

356

Abstract

In this letter, a uniform representation for patching conditions using characteristic variables (CVs) is proposed to treat distinct types of interfaces in multidomain pseudospectral time domain (MPSTD) algorithm. Patching conditions using CVs implicitly consider wave propagation property and physical boundary conditions. Instead of direct use of physical boundary conditions, it is more accurate and stable to match boundary conditions at the interfaces separating two subdomains of different materials. The good performance of the scheme is demonstrated by numerical examples.

Keywords

electromagnetic wave propagation; electromagnetic wave scattering; spectral-domain analysis; time-domain analysis; 2D arbitrarily curved objects; characteristic variables; electromagnetic scattering; multidomain pseudospectral time domain; patching conditions; physical boundary conditions; wave propagation; Boundary conditions; Chebyshev approximation; Eigenvalues and eigenfunctions; Electromagnetic propagation; Electromagnetic scattering; Equations; Finite difference methods; Helium; Time domain analysis; Transforms; Characteristic variables (CVs); multidomain pseudospectral time domain (MPSTD);

fLanguage

English

Journal_Title

Antennas and Wireless Propagation Letters, IEEE

Publisher

ieee

ISSN

1536-1225

Type

jour

DOI

10.1109/LAWP.2007.902031

Filename

4295070