Near-field scanning and propagation of correlated low-frequency radiated emissions
Electromagnetic radiation from complex printed circuit boards can occur over a broad frequency bandwidth, ranging from hundreds of MHz to tens of GHz. This is becoming a critical issue for assessment of EMC and interoperability as electronic components become more and more integrated. We use emissio...
| Main Authors: | , , , , , , , |
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| Format: | Article |
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Institute of Electrical and Electronics Engineers
2017
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| Online Access: | https://eprints.nottingham.ac.uk/49194/ |
| _version_ | 1848797942508421120 |
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| author | Gradoni, Gabriele Madenoor Ramapriya, Deepthee Creagh, Stephen C. Tanner, Gregor Baharuddin, Mohd Hafiz Nasser, Hayan Smartt, Christopher Thomas, David W.P. |
| author_facet | Gradoni, Gabriele Madenoor Ramapriya, Deepthee Creagh, Stephen C. Tanner, Gregor Baharuddin, Mohd Hafiz Nasser, Hayan Smartt, Christopher Thomas, David W.P. |
| author_sort | Gradoni, Gabriele |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Electromagnetic radiation from complex printed circuit boards can occur over a broad frequency bandwidth, ranging from hundreds of MHz to tens of GHz. This is becoming a critical issue for assessment of EMC and interoperability as electronic components become more and more integrated. We use emissions from an enclosure with a single-slot aperture and equipped with operating electronics to exemplify and model such sources. Spatial correlation functions obtained from two-probe measurements are used both to characterise the source and to propagate the emissions. We examine emissions in the submicrowave frequency range, where evanescent decay dominates the measured correlation function at the distances measured. We find that an approximate, diffusion-like propagator describes the measured emissions well. A phase-space approach based on Wigner functions is exploited to develop this approximation and to provide enhanced understanding of the emissions. |
| first_indexed | 2025-11-14T20:11:53Z |
| format | Article |
| id | nottingham-49194 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T20:11:53Z |
| publishDate | 2017 |
| publisher | Institute of Electrical and Electronics Engineers |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-491942020-05-04T19:23:16Z https://eprints.nottingham.ac.uk/49194/ Near-field scanning and propagation of correlated low-frequency radiated emissions Gradoni, Gabriele Madenoor Ramapriya, Deepthee Creagh, Stephen C. Tanner, Gregor Baharuddin, Mohd Hafiz Nasser, Hayan Smartt, Christopher Thomas, David W.P. Electromagnetic radiation from complex printed circuit boards can occur over a broad frequency bandwidth, ranging from hundreds of MHz to tens of GHz. This is becoming a critical issue for assessment of EMC and interoperability as electronic components become more and more integrated. We use emissions from an enclosure with a single-slot aperture and equipped with operating electronics to exemplify and model such sources. Spatial correlation functions obtained from two-probe measurements are used both to characterise the source and to propagate the emissions. We examine emissions in the submicrowave frequency range, where evanescent decay dominates the measured correlation function at the distances measured. We find that an approximate, diffusion-like propagator describes the measured emissions well. A phase-space approach based on Wigner functions is exploited to develop this approximation and to provide enhanced understanding of the emissions. Institute of Electrical and Electronics Engineers 2017-12-20 Article PeerReviewed Gradoni, Gabriele, Madenoor Ramapriya, Deepthee, Creagh, Stephen C., Tanner, Gregor, Baharuddin, Mohd Hafiz, Nasser, Hayan, Smartt, Christopher and Thomas, David W.P. (2017) Near-field scanning and propagation of correlated low-frequency radiated emissions. IEEE Transactions on Electromagnetic Compatibility . ISSN 0018-9375 Correlation near-field scan radiated emissions statistical electromagnetics Wigner function http://ieeexplore.ieee.org/document/8231199/ doi:10.1109/TEMC.2017.2778046 doi:10.1109/TEMC.2017.2778046 |
| spellingShingle | Correlation near-field scan radiated emissions statistical electromagnetics Wigner function Gradoni, Gabriele Madenoor Ramapriya, Deepthee Creagh, Stephen C. Tanner, Gregor Baharuddin, Mohd Hafiz Nasser, Hayan Smartt, Christopher Thomas, David W.P. Near-field scanning and propagation of correlated low-frequency radiated emissions |
| title | Near-field scanning and propagation of correlated low-frequency radiated emissions |
| title_full | Near-field scanning and propagation of correlated low-frequency radiated emissions |
| title_fullStr | Near-field scanning and propagation of correlated low-frequency radiated emissions |
| title_full_unstemmed | Near-field scanning and propagation of correlated low-frequency radiated emissions |
| title_short | Near-field scanning and propagation of correlated low-frequency radiated emissions |
| title_sort | near-field scanning and propagation of correlated low-frequency radiated emissions |
| topic | Correlation near-field scan radiated emissions statistical electromagnetics Wigner function |
| url | https://eprints.nottingham.ac.uk/49194/ https://eprints.nottingham.ac.uk/49194/ https://eprints.nottingham.ac.uk/49194/ |