Estimating reverberant electromagnetic fields in populated enclosures by using the diffusion model

Jiexiong Yan; John Dawson; Andy Marvin

doi:10.1109/EMCSI.2018.8495445

Estimating reverberant electromagnetic fields in populated enclosures by using the diffusion model

Jiexiong Yan, John Dawson, Andy Marvin

Electronic Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The ability of an enclosure to protect its contents from electromagnetic interference is quantified by its shielding effectiveness. Previous research has proved that the contents of an enclosure may greatly change the internal field and thus the shielding effectiveness. The power balance method is an efficient approach to analyze shielding problems of populated enclosures. One assumption of the power balance method is that in the steady state, the electromagnetic field in an enclosure is homogeneous. In actual circumstances, however, the presence of losses in an enclosure often compromises the field homogeneity and the power balance method may become inaccurate. A diffusion equation approach has been previously proposed to overcome this problem. In this paper, we predict the internal electromagnetic field of a populated enclosure by using the diffusion model, and compare them with the fields obtained by the power balance method, a full wave electromagnetic solver and measurements, to demonstrate its efficacy. Comparisons between the diffusion model and the power balance method show that for populated enclosures, the internal electromagnetic field varies with position and that the diffusion model allows this to be observed.

Original language	English
Title of host publication	Electromagnetic Compatibility (EMC), 2018 IEEE International Symposium on
Place of Publication	Long Beach, CA
Pages	363-367
Number of pages	5
DOIs	https://doi.org/10.1109/EMCSI.2018.8495445
Publication status	Published - 30 Jul 2018
Event	2018 IEEE International Symposium on Electromagnetic Compatibility (EMC) - Long Beach, United States Duration: 30 Jul 2018 → 3 Aug 2018

Publication series

Name	IEEE EMC International Symposium

Conference

Conference	2018 IEEE International Symposium on Electromagnetic Compatibility (EMC)
Abbreviated title	IEEE EMC Symposium
Country/Territory	United States
City	Long Beach
Period	30/07/18 → 3/08/18

Bibliographical note

Accepted 27 Feb 2018

Access to Document

10.1109/EMCSI.2018.8495445

Yan2018_postprint
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Accepted author manuscript, 668 KBLicence: Other

1 Active

Electromagnetic shielding properties of Materials, and Enclosures
Dawson, J. F. (Principal investigator), Marvin, A. (Principal investigator), Flintoft, I. D. (Principal investigator), Dawson, L. (Principal investigator), Porter, S. J. (Principal investigator), Robinson, M. P. (Principal investigator) & Yan, J. (Student)
1/01/90 → …
Project: Other project › Miscellaneous project

Cite this

@inproceedings{c722acb89ef3462ea17dec5e6708867f,

title = "Estimating reverberant electromagnetic fields in populated enclosures by using the diffusion model",

abstract = "The ability of an enclosure to protect its contents from electromagnetic interference is quantified by its shielding effectiveness. Previous research has proved that the contents of an enclosure may greatly change the internal field and thus the shielding effectiveness. The power balance method is an efficient approach to analyze shielding problems of populated enclosures. One assumption of the power balance method is that in the steady state, the electromagnetic field in an enclosure is homogeneous. In actual circumstances, however, the presence of losses in an enclosure often compromises the field homogeneity and the power balance method may become inaccurate. A diffusion equation approach has been previously proposed to overcome this problem. In this paper, we predict the internal electromagnetic field of a populated enclosure by using the diffusion model, and compare them with the fields obtained by the power balance method, a full wave electromagnetic solver and measurements, to demonstrate its efficacy. Comparisons between the diffusion model and the power balance method show that for populated enclosures, the internal electromagnetic field varies with position and that the diffusion model allows this to be observed.",

author = "Jiexiong Yan and John Dawson and Andy Marvin",

note = "Accepted 27 Feb 2018; 2018 IEEE International Symposium on Electromagnetic Compatibility (EMC), IEEE EMC Symposium ; Conference date: 30-07-2018 Through 03-08-2018",

year = "2018",

month = jul,

day = "30",

doi = "10.1109/EMCSI.2018.8495445",

language = "English",

series = "IEEE EMC International Symposium",

pages = "363--367",

booktitle = "Electromagnetic Compatibility (EMC), 2018 IEEE International Symposium on",

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Yan, J, Dawson, J & Marvin, A 2018, Estimating reverberant electromagnetic fields in populated enclosures by using the diffusion model. in Electromagnetic Compatibility (EMC), 2018 IEEE International Symposium on. IEEE EMC International Symposium, Long Beach, CA, pp. 363-367, 2018 IEEE International Symposium on Electromagnetic Compatibility (EMC), Long Beach, California, United States, 30/07/18. https://doi.org/10.1109/EMCSI.2018.8495445

Estimating reverberant electromagnetic fields in populated enclosures by using the diffusion model. / Yan, Jiexiong; Dawson, John ; Marvin, Andy.
Electromagnetic Compatibility (EMC), 2018 IEEE International Symposium on. Long Beach, CA, 2018. p. 363-367 (IEEE EMC International Symposium).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Estimating reverberant electromagnetic fields in populated enclosures by using the diffusion model

AU - Yan, Jiexiong

AU - Dawson, John

AU - Marvin, Andy

N1 - Accepted 27 Feb 2018

PY - 2018/7/30

Y1 - 2018/7/30

N2 - The ability of an enclosure to protect its contents from electromagnetic interference is quantified by its shielding effectiveness. Previous research has proved that the contents of an enclosure may greatly change the internal field and thus the shielding effectiveness. The power balance method is an efficient approach to analyze shielding problems of populated enclosures. One assumption of the power balance method is that in the steady state, the electromagnetic field in an enclosure is homogeneous. In actual circumstances, however, the presence of losses in an enclosure often compromises the field homogeneity and the power balance method may become inaccurate. A diffusion equation approach has been previously proposed to overcome this problem. In this paper, we predict the internal electromagnetic field of a populated enclosure by using the diffusion model, and compare them with the fields obtained by the power balance method, a full wave electromagnetic solver and measurements, to demonstrate its efficacy. Comparisons between the diffusion model and the power balance method show that for populated enclosures, the internal electromagnetic field varies with position and that the diffusion model allows this to be observed.

AB - The ability of an enclosure to protect its contents from electromagnetic interference is quantified by its shielding effectiveness. Previous research has proved that the contents of an enclosure may greatly change the internal field and thus the shielding effectiveness. The power balance method is an efficient approach to analyze shielding problems of populated enclosures. One assumption of the power balance method is that in the steady state, the electromagnetic field in an enclosure is homogeneous. In actual circumstances, however, the presence of losses in an enclosure often compromises the field homogeneity and the power balance method may become inaccurate. A diffusion equation approach has been previously proposed to overcome this problem. In this paper, we predict the internal electromagnetic field of a populated enclosure by using the diffusion model, and compare them with the fields obtained by the power balance method, a full wave electromagnetic solver and measurements, to demonstrate its efficacy. Comparisons between the diffusion model and the power balance method show that for populated enclosures, the internal electromagnetic field varies with position and that the diffusion model allows this to be observed.

U2 - 10.1109/EMCSI.2018.8495445

DO - 10.1109/EMCSI.2018.8495445

M3 - Conference contribution

T3 - IEEE EMC International Symposium

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BT - Electromagnetic Compatibility (EMC), 2018 IEEE International Symposium on

CY - Long Beach, CA

T2 - 2018 IEEE International Symposium on Electromagnetic Compatibility (EMC)

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ER -

Estimating reverberant electromagnetic fields in populated enclosures by using the diffusion model

Abstract

Publication series

Conference

Bibliographical note

Access to Document

Projects

Electromagnetic shielding properties of Materials, and Enclosures

Cite this