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Modeling of Electromagnetic Wave Propagation in Guides with Inhomogeneous Dielectric Inclusions
Chalmers University, Gothenburg University.
Karlstad University, Faculty of Health, Science and Technology (starting 2013), Department of Mathematics and Computer Science.ORCID iD: 0000-0002-2691-2820
2013 (English)In: Inverse Problems and Large-Scale Computations / [ed] Larisa Beilina, Yury V. Shestopalov, Springer, 2013, Vol. 52, p. 113-118Conference paper, Published paper (Refereed)
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Text
Abstract [en]

We consider scattering in the time domain of electromagnetic waves from inhomogeneous dielectric inclusions in a 3D waveguide of rectangular cross section. All electromagnetic field components are calculated, and transport of energy in the guide is investigated using finite difference time domain (FDTD) method in different frequency ranges. An efficient 3D FDTD EMWSolver3D solver for the nonstationary Maxwell equation system is used. The model computations are performed for the H10-mode scattering from parallelepiped-shaped dielectric inclusions. Attenuation and propagation factors are calculated for the transmitted modes and field distributions are visualized. The present method can be used for a wide class of waveguide problems that meet substantial difficulties as far as numerical solution by conventional FDTD methods is concerned due to complex geometries or computational requirements. The solver employs algorithms of parallel computations and is implemented on supercomputers of last generation for solving large-scale problems with characteristic matrix dimensions achieving 1012.

Place, publisher, year, edition, pages
Springer, 2013. Vol. 52, p. 113-118
Series
Springer Proceedings in Mathematics & Statistics, ISSN 2194-1017, E-ISSN 2194-1009 ; 52
Keyword [en]
Acoustics; Electromagnetic fields; Electromagnetic wave propagation; Electromagnetic waves; Finite difference time domain method; Supercomputers; Three dimensional; Waveguides, Characteristic matrices; Computational requirements; Dielectric inclusions; Electromagnetic field components; Finite-difference time-domain (FDTD) methods; Inhomogeneous dielectrics; Parallel Computation; Rectangular cross-sections, Time domain analysis
National Category
Other Mathematics
Research subject
Mathematics
Identifiers
URN: urn:nbn:se:kau:diva-44269DOI: 10.1007/978-3-319-00660-4_8Scopus ID: 2-s2.0-84892698056ISBN: 978-3-319-00660-4 (print)OAI: oai:DiVA.org:kau-44269DiVA, id: diva2:945333
Conference
Second Annual Workshop on Inverse Problems and the Workshop on Large-Scale Modeling, Sunne, Sweden, May 1-6 2012.
Available from: 2016-07-01 Created: 2016-07-01 Last updated: 2017-10-30Bibliographically approved

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  • apa
  • harvard1
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  • Other locale
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