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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.
Published in:
Antennas and Wireless Propagation Letters, IEEE
(Volume:3
,
Issue:
1
)
Date of Publication: Dec. 2004
- Page(s):
- 59 - 62
- ISSN :
- 1536-1225
- INSPEC Accession Number:
- 8240111
- Digital Object Identifier :
- 10.1109/LAWP.2004.827892
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 23 February 2005
- Issue Date :
- Dec. 2004
- Sponsored by :
- IEEE Antennas and Propagation Society
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