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Application of Analytical Expressions for Retarded-Time Potentials in Analyzing the Transient Scattering by Dielectric Objects

Tian, Xuezhe; Xiao, Gaobiao and Xiang, Shang LU (2014) In IEEE Antennas and Wireless Propagation Letters 13. p.1313-1316
Abstract
Application of analytical formulas for the retarded-time potentials in Müller- and PMCHWT-type time-domain integral equations (TDIEs) is presented. The impulsively excited scalar and vector potentials are evaluated in closed form, and the coupling coefficients can be calculated with high accuracy. Examples of transient analysis of the electromagnetic scattering from dielectric objects are provided and solved with marching-on-in-time (MOT) method. Numerical results show that solutions for Müller-type MOT TDIE are always stable if the coupling coefficients are accurately evaluated, while the PMCHWT type usually suffers from the dc instability.
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author
publishing date
type
Contribution to journal
publication status
published
subject
in
IEEE Antennas and Wireless Propagation Letters
volume
13
pages
1313 - 1316
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:84904800426
ISSN
1548-5757
DOI
10.1109/LAWP.2014.2336471
language
English
LU publication?
no
id
043490a1-4470-4e75-8134-c94f2191b7c8
date added to LUP
2018-04-06 18:24:47
date last changed
2019-01-06 13:50:09
@article{043490a1-4470-4e75-8134-c94f2191b7c8,
  abstract     = {Application of analytical formulas for the retarded-time potentials in Müller- and PMCHWT-type time-domain integral equations (TDIEs) is presented. The impulsively excited scalar and vector potentials are evaluated in closed form, and the coupling coefficients can be calculated with high accuracy. Examples of transient analysis of the electromagnetic scattering from dielectric objects are provided and solved with marching-on-in-time (MOT) method. Numerical results show that solutions for Müller-type MOT TDIE are always stable if the coupling coefficients are accurately evaluated, while the PMCHWT type usually suffers from the dc instability.},
  author       = {Tian, Xuezhe and Xiao, Gaobiao and Xiang, Shang},
  issn         = {1548-5757},
  language     = {eng},
  pages        = {1313--1316},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Antennas and Wireless Propagation Letters},
  title        = {Application of Analytical Expressions for Retarded-Time Potentials in Analyzing the Transient Scattering by Dielectric Objects},
  url          = {http://dx.doi.org/10.1109/LAWP.2014.2336471},
  volume       = {13},
  year         = {2014},
}