Flintoft, Ian David orcid.org/0000-0003-3153-8447, Marvin, Andrew Charles orcid.org/0000-0003-2590-5335, Funn, Foo Inn et al. (4 more authors) (2017) Evaluation of the diffusion equation for modeling reverberant electromagnetic fields. IEEE Transactions on Electromagnetic Compatibility. pp. 760-769. ISSN 0018-9375
Abstract
Determination of the distribution of electromagnetic energy inside electrically large enclosed spaces is important in many electromagnetic compatibility applications, such as certification of aircraft and equipment shielding enclosures. The field inside such enclosed environments contains a dominant diffuse component due to multiple randomizing reflections from the enclosing surfaces. The power balance technique has been widely applied to the analysis of such problems; however, it is unable to account for the inhomogeneities in the field that arise when the absorption in the walls and contents of the enclosure is significant. In this paper we show how a diffusion equation approach can be applied to modeling diffuse electromagnetic fields and evaluate its potential for use in electromagnetic compatibility applications. Two canonical examples were investigated: A loaded cavity and two cavities coupled by a large aperture. The predictions of the diffusion model were compared to measurement data and found to be in good agreement. The diffusion model has a very low computational cost compared to other applicable techniques, such as full-wave simulation and ray-tracing, offering the potential for a radical increase in the efficiency of the solution high frequency electromagnetic shielding problems with complex topologies.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | © 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. |
Keywords: | asymptotic techniques, power balance, absorption cross-section, reverberation chamber, shielding ,absorption cross section (ACS),shielding,reverberation chamber (RC),Asymptotic techniques,power balance (PWB) |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Electronic Engineering (York) |
Depositing User: | Pure (York) |
Date Deposited: | 25 Oct 2016 16:04 |
Last Modified: | 07 Jan 2025 00:09 |
Published Version: | https://doi.org/10.1109/TEMC.2016.2623356 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1109/TEMC.2016.2623356 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:106570 |
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