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Geometry-independent antenna based on Epsilon-near-zero medium

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dc.contributor.authorLi, Haoes_ES
dc.contributor.authorZhou, Zihenges_ES
dc.contributor.authorHe, Yijinges_ES
dc.contributor.authorSun, Wangyues_ES
dc.contributor.authorLi, Yuees_ES
dc.contributor.authorLiberal Olleta, Íñigo
dc.contributor.authorEngheta, Naderes_ES
dc.contributor.departmentIngeniería Eléctrica, Electrónica y de Comunicaciónes_ES
dc.contributor.departmentIngeniaritza Elektrikoa, Elektronikoaren eta Telekomunikazio Ingeniaritzareneu
dc.date.accessioned2022-11-28T07:12:31Z
dc.date.available2022-11-28T07:12:31Z
dc.date.issued2022
dc.date.updated2022-11-18T10:03:59Z
dc.description.abstractIt is well known that electromagnetic radiation from radiating elements (e.g., antennas, apertures, etc.) shows dependence on the element’s geometry shape in terms of operating frequencies. This basic principle is ubiquitous in the design of radiators in multiple applications spanning from microwave, to optics and plasmonics. The emergence of epsilon-near-zero media exceptionally allows for an infinite wavelength of electromagnetic waves, manifesting exotic spatially-static wave dynamics which is not dependent on geometry. In this work, we analyze theoretically and verify experimentally such geometry-independent features for radiation, thus presenting a novel class of radiating resonators, i.e., antennas, with an operating frequency irrelevant to the geometry shape while only determined by the host material’s dispersions. Despite being translated into different shapes and topologies, the designed epsilon-near-zero antenna resonates at a same frequency, while exhibiting very different far-field radiation patterns, with beams varying from wide to narrow, or even from single to multiple. Additionally, the photonic doping technique is employed to facilitate the high-efficiency radiation. The material-determined geometry-independent radiation may lead to numerous applications in flexible design and manufacturing for wireless communications, sensing, and wavefront engineering. © 2022, The Author(s).en
dc.description.sponsorshipY.L. acknowledges partial support from National Natural Science Foundation of China (NSFC) under grant 62022045, and in part by supported by Tsinghua University Initiative Scientific Research Program. I.L. acknowledges support from Ramón y Cajal fellowship RYC2018-024123-I, project RTI2018-093714-301J-I00 sponsored by MCIU/AEI/FEDER/UE, and ERC Starting Grant 948504.en
dc.format.mimetypeapplication/pdfen
dc.identifier.citationLi, H., Zhou, Z., He, Y., Sun, W., Li, Y., Liberal, I., & Engheta, N. (2022). Geometry-independent antenna based on Epsilon-near-zero medium. Nature Communications, 13(1), 3568.en
dc.identifier.doi10.1038/s41467-022-31013-z
dc.identifier.issn2041-1723
dc.identifier.urihttps://academica-e.unavarra.es/handle/2454/44434
dc.language.isoengen
dc.publisherSpringer Natureen
dc.relation.ispartofNature Communications (2022) 13:3568en
dc.relation.projectIDinfo:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-093714-J-I00/ES/en
dc.relation.publisherversionhttps://doi.org/10.1038/s41467-022-31013-z
dc.rights© The Author(s) 2022. 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 license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license 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.en
dc.rights.accessRightsAcceso abierto / Sarbide irekiaes
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectEpsilon-near-zero (ENZ) mediaen
dc.subjectGeometry-independent antennasen
dc.titleGeometry-independent antenna based on Epsilon-near-zero mediumen
dc.typeArtículo / Artikuluaes
dc.typeinfo:eu-repo/semantics/articleen
dc.type.versionVersión publicada / Argitaratu den bertsioaes
dc.type.versioninfo:eu-repo/semantics/publishedVersionen
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relation.isAuthorOfPublication781ff0dc-60db-4bd0-bef0-49e27c76b542
relation.isAuthorOfPublication.latestForDiscovery781ff0dc-60db-4bd0-bef0-49e27c76b542

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