On the inclusion of loss in time-domain solutions of electromagnetic interaction problems

A computational approach for including the effects of a dispersive loss in direct time-domain solutions for electromagnetic (EM) field problems is discussed. If such problems are solved in the frequency domain, a dispersive impedance that models the loss can be easily incorporated in the solution. I...

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Bibliographic Details
Published in:IEEE transactions on electromagnetic compatibility 1990-02, Vol.32 (1), p.1-4
Main Author: Tesche, F.M.
Format: Article
Language:English
Subjects:
Applied sciences
Conductors
Dispersion
Distribution functions
Electromagnetic compatibility
Electromagnetic fields
Electromagnetic scattering
Exact sciences and technology
Frequency domain analysis
Impedance
Information, signal and communications theory
Integral equations
Propagation losses
Telecommunications and information theory
Time domain analysis
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Summary:A computational approach for including the effects of a dispersive loss in direct time-domain solutions for electromagnetic (EM) field problems is discussed. If such problems are solved in the frequency domain, a dispersive impedance that models the loss can be easily incorporated in the solution. In the time domain, this effect is taken into account through a convolution integral, which involves a distribution function that has properties between those of a Dirac delta function and a doublet. A few simple examples of these distribution functions are presented, and comments as to their use in calculations are made.< >
ISSN:0018-9375
1558-187X
DOI:10.1109/15.45244