3D Electromagnetic Diffusion Models for Reverberant Environments

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Title of host publication2017 International Conference on Electromagnetics in Advanced Applications (ICEAA)
DateAccepted/In press - 7 Apr 2017
DatePublished (current) - 11 Sep 2017
Pages511-514
Place of PublicationVerona
Original languageUndefined/Unknown

Abstract

Diffusion equation based modeling has been proposed for mapping the reverberant component of the electromagnetic field in enclosures at high frequencies. Preliminary evaluation of the electromagnetic diffusion model using a dimensional reduction approach showed promising results compared to measurements. Here we develop a full three-dimensional diffusion model of the experimental canonical test cases considered in the preliminary evaluation and obtain finite element method solutions. The results are compared to those of the two-dimensional models. We find that the two- and three-dimensional models are generally in excellent agreement for the pseudo two-dimensional test-cases considered. Some deviations between the two- and three-dimensional models are observed due to the fact the point source must be effectively represented by a line source in the reduced model. The three-dimensional model is still highly efficient compared to other applicable techniques, offering the prospect of a radical reduction in the resources required for simulating reverberant fields in electrically large structures.

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© 2017 IEEE. This is an author-produced version of the published paper. Uploaded in accordance with the publisher’s self-archiving policy. Further copying may not be permitted; contact the publisher for details

    Research areas

  • stochastic electromagnetics, reverberant environment, electromagnetic shielding, Electromagnetic Compatibility, diffusion equations

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Impacts

  • Improved shielding enclosure qualification methodologies embedded in international standards and used by industry to improve reliability of the communication backbone

    Impact: Technological, Economic

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