Time-Domain Integral Equation Analysis of Electromagnetic Coupling through an Aperture Into a Parallel-Plate Waveguide Filled With a Lossy and Dispersive Dielectric

This paper proposes an efficient time-domain method to solve the method-of-moments-formulated integral equation pertinent to electromagnetic coupling through an aperture into a parallel plate waveguide (PPW) filled with a lossy and dispersive dielectric. The proposed method utilizes a fast Fourier t...

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Bibliographic Details
Published in:IEEE transactions on electromagnetic compatibility 2016-10, Vol.58 (5), p.1570-1578
Main Authors: Khosravi-Farsani, Mojtaba, Hossein Hesamedin Sadeghi, Seyed, Moini, Rouzbeh
Format: Article
Language:English
Subjects:
Algorithms
Apertures
Dielectric losses
Dielectrics
Dispersion
dispersive media
Electromagnetic coupling
Electromagnetic waveguides
Green's function methods
Integral equations
integral equations (IEs)
Mathematical models
parallel plate waveguides (PPWs)
Time domain
Time-domain analysis
Waveguides
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Summary:This paper proposes an efficient time-domain method to solve the method-of-moments-formulated integral equation pertinent to electromagnetic coupling through an aperture into a parallel plate waveguide (PPW) filled with a lossy and dispersive dielectric. The proposed method utilizes a fast Fourier transform-accelerated marching-on-in-time algorithm as a solution framework. Appropriate numerical procedures are introduced to avoid the adverse numerical effects associated with frequency-domain windowing and time-domain aliasing when convolving the time-domain Green's function of PPW with the derivative and integral of the respective temporal basis functions. The accuracy of the proposed method is confirmed by comparing the results of a circular, multiple square-shape apertures and a square aperture with those obtained using a commercial finite integration technique and a frequency-domain solver.
ISSN:0018-9375
1558-187X
DOI:10.1109/TEMC.2016.2580641