Comparative evaluation of absorbing boundary conditions using Green´s functions for layered media

Author

Aksun, M.I. ; Dural, Gulbin

Author_Institution

Dept. of Electr. & Electron. Eng., Bilkent Univ., Ankara, Turkey

Volume

44

Issue

2

fYear

1996

fDate

2/1/1996 12:00:00 AM

Firstpage

152

Lastpage

156

Abstract

Absorbing boundary conditions are comparatively studied using the Green´s functions of the vector and scalar potentials for multilayer geometries and general sources. Since the absorbing boundaries are introduced as additional layers with predefined reflection coefficients into the calculation of the Green´s functions, this approach provides an absolute measure of the effectiveness of different absorbing boundaries. The Green´s functions are calculated using different reflection coefficients corresponding to different absorbing boundaries and compared to those obtained with no absorbing boundary. It is observed that the perfectly matched layer (PML) is by far the best among the other absorbing boundary conditions whose reflection coefficients are available

Keywords

Green´s function methods; electromagnetic wave absorption; electromagnetic wave propagation; electromagnetic wave reflection; Green´s functions; absorbing boundary conditions; layered media; multilayer geometries; perfectly matched layer; reflection coefficients; scalar potentials; vector potentials; Boundary conditions; Differential equations; Finite difference methods; Finite element methods; Geometry; Green´s function methods; Nonhomogeneous media; Perfectly matched layers; Reflection; Time domain analysis;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/8.481641

Filename

481641