An Efficient Preconditioning Scheme For Eigenanalysis Of Inhomogeneously Loaded Rectangular Cavities
Abstract
An efficient preconditioning scheme for the eigenanalysis of inhomogeneously loaded rectangular cavities is presented. Such structures are modeled with the finite-difference frequency-domain (FDFD) method, while the desired interior eigen-spectra are sought for by Arnoldi iterations with the shiftand-invert operation. In large scale problems, the inversion can only be performed iteratively. A preconditioner is constructed in order to accelerate the inversion. It can effectively shrink the spectrum of the governing matrix, and can be solved for by using fast discrete sine and cosine transforms (DST's and DCT's). The efficiency of this scheme is demonstrated by several numerical examples. © 2013 IEEE.
Recommended Citation
Q. I. Dai et al., "An Efficient Preconditioning Scheme For Eigenanalysis Of Inhomogeneously Loaded Rectangular Cavities," IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), pp. 908 - 909, article no. 6711113, Institute of Electrical and Electronics Engineers, Dec 2013.
The definitive version is available at https://doi.org/10.1109/APS.2013.6711113
Department(s)
Electrical and Computer Engineering
International Standard Book Number (ISBN)
978-146735317-5
International Standard Serial Number (ISSN)
1522-3965
Document Type
Article - Conference proceedings
Document Version
Citation
File Type
text
Language(s)
English
Rights
© 2024 Institute of Electrical and Electronics Engineers, All rights reserved.
Publication Date
01 Dec 2013
