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Microwave demonstration of Purcell effect enhanced radiation efficiency

dc.contributor.authorStanfield, L
dc.contributor.authorPowell, A
dc.contributor.authorHorsley, SAR
dc.contributor.authorSambles, JR
dc.contributor.authorHibbins, AP
dc.date.accessioned2023-04-17T09:51:21Z
dc.date.issued2023-03-28
dc.date.updated2023-04-17T09:16:55Z
dc.description.abstractWe experimentally demonstrate a Purcell effect-based design technique for improved impedance matching, and thus enhanced the reflection coefficient from a small microwave emitter. Using an iterative process centred on comparing the phase of the radiated field of the emitter in air with that of the emitter in a dielectric environment, we optimise the structure of a dielectric hemisphere above a ground plane surrounding a small monopolar microwave emitter in order to maximise its radiation efficiency. The optimised system shows very strong coupling between the emitter and two omnidirectional radiation modes at 1.99 GHz and 2.84 GHz, yielding Purcell enhancement factors of 1762 and 411 times increase respectively, and near perfect radiation efficiency.en_GB
dc.description.sponsorshipEngineering and Physical Sciences Research Council (EPSRC)en_GB
dc.description.sponsorshipLeonardo Ltd UKen_GB
dc.identifier.citationVol. 13, article 5065en_GB
dc.identifier.doihttps://doi.org/10.1038/s41598-023-32066-w
dc.identifier.grantnumberEP/R511924/1en_GB
dc.identifier.urihttp://hdl.handle.net/10871/132920
dc.language.isoenen_GB
dc.publisherNature Researchen_GB
dc.rights© The Author(s) 2023. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.en_GB
dc.titleMicrowave demonstration of Purcell effect enhanced radiation efficiencyen_GB
dc.typeArticleen_GB
dc.date.available2023-04-17T09:51:21Z
dc.descriptionThis is the final version. Available from Nature Research via the DOI in this record. en_GB
dc.descriptionThe datasets used and/or analysed during the current study available from the corresponding author on reasonable request.en_GB
dc.identifier.eissn2045-2322
dc.identifier.journalScientific Reportsen_GB
dc.relation.ispartofScientific Reports
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en_GB
dcterms.dateAccepted2023-03-22
dcterms.dateSubmitted2023-01-11
rioxxterms.versionVoRen_GB
rioxxterms.licenseref.startdate2023-03-22
rioxxterms.typeJournal Article/Reviewen_GB
refterms.dateFCD2023-04-17T09:16:58Z
refterms.versionFCDAM
refterms.dateFOA2023-04-17T09:51:22Z
refterms.panelBen_GB
refterms.dateFirstOnline2023-03-28


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© The Author(s) 2023. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.
Except where otherwise noted, this item's licence is described as © The Author(s) 2023. Open Access. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.