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Transient Electromagnetic-Wave Propagation in Wave-guides

Kristensson, Gerhard LU (1995) In Journal Electromagnetic Waves and Applications 9(5-6). p.645-671
Abstract
This paper focuses on propagation of transient electromagnetic waves in waveguides of general cross section with perfectly conducting walls. The solution of the transient wave propagation problem relies on a wave splitting technique, which has been frequently used in direct and inverse scattering problems during the last decade. The field in the waveguide is represented as a time convolution of a Green function and the excitation. Some numerical computations illustrate the method. A new way of calculating the first precursor in a Lorentz medium is presented. This method, which is not based upon the classical asymptotic methods, gives an expression of the first precursor at all depths in the medium. The excitation of the waveguide modes for... (More)
This paper focuses on propagation of transient electromagnetic waves in waveguides of general cross section with perfectly conducting walls. The solution of the transient wave propagation problem relies on a wave splitting technique, which has been frequently used in direct and inverse scattering problems during the last decade. The field in the waveguide is represented as a time convolution of a Green function and the excitation. Some numerical computations illustrate the method. A new way of calculating the first precursor in a Lorentz medium is presented. This method, which is not based upon the classical asymptotic methods, gives an expression of the first precursor at all depths in the medium. The excitation of the waveguide modes for time dependent sources is also addressed. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal Electromagnetic Waves and Applications
volume
9
issue
5-6
pages
645 - 671
publisher
VSP BV
ISSN
1569-3937
language
English
LU publication?
yes
id
1cceb9d8-c842-4beb-b9bf-f72841c0d792 (old id 143337)
date added to LUP
2007-07-06 12:40:33
date last changed
2016-04-15 19:25:06
@article{1cceb9d8-c842-4beb-b9bf-f72841c0d792,
  abstract     = {This paper focuses on propagation of transient electromagnetic waves in waveguides of general cross section with perfectly conducting walls. The solution of the transient wave propagation problem relies on a wave splitting technique, which has been frequently used in direct and inverse scattering problems during the last decade. The field in the waveguide is represented as a time convolution of a Green function and the excitation. Some numerical computations illustrate the method. A new way of calculating the first precursor in a Lorentz medium is presented. This method, which is not based upon the classical asymptotic methods, gives an expression of the first precursor at all depths in the medium. The excitation of the waveguide modes for time dependent sources is also addressed.},
  author       = {Kristensson, Gerhard},
  issn         = {1569-3937},
  language     = {eng},
  number       = {5-6},
  pages        = {645--671},
  publisher    = {VSP BV},
  series       = {Journal Electromagnetic Waves and Applications},
  title        = {Transient Electromagnetic-Wave Propagation in Wave-guides},
  volume       = {9},
  year         = {1995},
}