Transient Electromagnetic Wave Propagation in Waveguides
Författare
Summary, in English
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. Anew 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.
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. Anew 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.
Publiceringsår
1993
Språk
Engelska
Publikation/Tidskrift/Serie
Technical Report LUTEDX/(TEAT-7026)/1-24/(1993)
Fulltext
Dokumenttyp
Rapport
Förlag
[Publisher information missing]
Ämne
- Electrical Engineering, Electronic Engineering, Information Engineering
- Other Electrical Engineering, Electronic Engineering, Information Engineering
Status
Published
Report number
TEAT-7026
Forskningsgrupp
- Electromagnetic theory