DocumentCode
979083
Title
Elimination of spurious solutions associated with exact transparent boundary conditions in FDTD solvers
Author
Lu, Mingyu ; Shanker, Balasubramanian ; Michielssen, Eric
Author_Institution
Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL, USA
Volume
3
Issue
1
fYear
2004
Firstpage
59
Lastpage
62
Abstract
An analysis of spurious solutions that often plague finite-difference time-domain solvers supplemented with certain transparent boundary conditions (TBC) is presented. It is shown that the electric- and magnetic-field TBC kernels may support undesired spurious modes. A combined-field TBC kernel is proposed that does not allow for the buildup of resonant modes. Its functionality is demonstrated by two numerical examples.
Keywords
boundary-value problems; computational electromagnetics; finite difference time-domain analysis; resonance; FDTD solver spurious solution elimination; combined-field TBC kernel; computational electromagnetics; electric-field TBC kernels; finite-difference time-domain solvers; magnetic-field TBC kernels; resonant modes; spurious modes; transparent boundary conditions;
fLanguage
English
Journal_Title
Antennas and Wireless Propagation Letters, IEEE
Publisher
ieee
ISSN
1536-1225
Type
jour
DOI
10.1109/LAWP.2004.827892
Filename
1296188
Link To Document