Analysis of the coupling of an incident wave with a wire inside a cavity using an FEM in frequency and time domains

This paper presents a numerical method based on finite elements in both the frequency and time domains for modeling the coupling of an incident wave with a conducting wire placed inside a metallic cavity having a small aperture. The method uses edge elements on tetrahedra for the electric field repr...

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Bibliographic Details
Published in:IEEE transactions on electromagnetic compatibility 2002-08, Vol.44 (3), p.470-475
Main Authors: Carpes, W.P., Pichon, L., Razek, A.
Format: Article
Language:English
Subjects:
Applied sciences
Derivatives
Electric wire
Electromagnetic compatibility
Electromagnetic shielding
Engineering Sciences
Exact sciences and technology
Finite element method
Finite element methods
Frequency domain analysis
Holes
Incident waves
Information, signal and communications theory
Joining
Mathematical models
Telecommunications and information theory
Time domain
Time domain analysis
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Summary:This paper presents a numerical method based on finite elements in both the frequency and time domains for modeling the coupling of an incident wave with a conducting wire placed inside a metallic cavity having a small aperture. The method uses edge elements on tetrahedra for the electric field representation. The formulation can take into account thin wires as well as lumped elements. In the time-domain approach, the time derivatives are discretized by the Newmark method, which allows obtaining an unconditionally-stable scheme with second-order accuracy. Numerical results are provided to validate the presented method.
ISSN:0018-9375
1558-187X
DOI:10.1109/TEMC.2002.801767