Comparative evaluation of absorbing boundary conditions using Green's functions for layered media
Date
1996-02Source Title
IEEE Transactions on Antennas and Propagation
Print ISSN
0018-926X
Electronic ISSN
1558-2221
Publisher
Institute of Electrical and Electronics Engineers
Volume
44
Issue
2
Pages
152 - 156
Language
English
Type
ArticleItem Usage Stats
203
views
views
196
downloads
downloads
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
Boundary conditionsGreen's function methods
Nonhomogeneous media
Geometry
Reflection
Perfectly matched layers
Finite difference methods
Time domain analysis
Differential equations
Finite element methods