Abstract
Electromagnetic scattering by dielectric objects in the presence of a layered medium is investigated by applying the Poggio-Miller-Chang-Harrington-Wu-Tsai (PMCHWT) equation combined with the layered medium Green's function. Due to the electric field integral equation (EFIE) operator involved, the spectrum of the PMCHWT equation is also undesired. When the surface is densely discretized, the condition of the resulting matrix is extremely bad. An effective Calderón preconditioner is developed in this paper to improve the convergence. Different from its free space counterpart, the Calderón identities for inhomogeneous medium need to be re-derived. It is shown from numerical examples that the convergence of the PMCHWT system in layered medium can be significantly improved by using the proposed Calderón preconditioner.
Recommended Citation
Y. P. Chen et al., "Calderón Preconditioned PMCHWT Equation For Layered Medium Problems," IEEE Antennas and Propagation Society, AP-S International Symposium (Digest), pp. 2184 - 2185, article no. 6905419, Institute of Electrical and Electronics Engineers, Sep 2014.
The definitive version is available at https://doi.org/10.1109/APS.2014.6905419
Department(s)
Electrical and Computer Engineering
International Standard Book Number (ISBN)
978-147993540-6
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
18 Sep 2014
