Wide-Angle Ceramic Retroreflective Luneburg Lens Based on Quasi-Conformal Transformation Optics for Mm-Wave Indoor Localization

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dc.contributor.authorKaděra, Petrcs
dc.contributor.authorSánchez-Pastor, Jesúscs
dc.contributor.authorEskandari, Hosseincs
dc.contributor.authorTyc, Tomášcs
dc.contributor.authorSakaki, Masoudcs
dc.contributor.authorSchüßler, Martincs
dc.contributor.authorJakoby, Rolfcs
dc.contributor.authorBenson, Nielscs
dc.contributor.authorJiménez-Sáez, Alejandrocs
dc.contributor.authorLáčík, Jaroslavcs
dc.coverage.issue1cs
dc.coverage.volume10cs
dc.date.accessioned2022-05-02T14:55:56Z
dc.date.available2022-05-02T14:55:56Z
dc.date.issued2022-04-11cs
dc.description.abstractThis paper presents a quasi-conformal transformation optics (QCTO) based three-dimensional (3D) retroreflective attened Luneburg lens for wide-angle millimeter-wave radio-frequency indoor localization. The maximum detection angle and radar cross-section (RCS) are investigated, including an impedance matching layer (IML) between the lens antenna and the free-space environment. The 3D QCTO Luneburg lenses are fabricated in alumina by lithography-based ceramic manufacturing, a 3D printing process. The manufactured structures have a diameter of 29.9 mm (4 lambda_0), showing a maximum realized gain of 16.51 dBi and beam steering angle of +-70° at 40 GHz. The proposed QCTO Luneburg lens with a metallic reflective layer achieves a maximum RCS of -20.05 dBsqm at 40 GHz with a wide-angle response over +-37°, while the structure with an IML between the lens and air improves these values to a maximum RCS of -15.78 dBsqm and operating angular response between +-50°.en
dc.formattextcs
dc.format.extent41097-41111cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationIEEE Access. 2022, vol. 10, issue 1, p. 41097-41111.en
dc.identifier.doi10.1109/ACCESS.2022.3166509cs
dc.identifier.issn2169-3536cs
dc.identifier.other177562cs
dc.identifier.urihttp://hdl.handle.net/11012/204159
dc.language.isoencs
dc.publisherIEEEcs
dc.relation.ispartofIEEE Accesscs
dc.relation.urihttps://ieeexplore.ieee.org/document/9755166cs
dc.rightsCreative Commons Attribution 4.0 Internationalcs
dc.rights.accessopenAccesscs
dc.rights.sherpahttp://www.sherpa.ac.uk/romeo/issn/2169-3536/cs
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/cs
dc.subjectTransformaton opticsen
dc.subjectLuneburg lensen
dc.subjectimpedance matchingen
dc.subjectlens antennaen
dc.subjectretrorefleectoren
dc.subjectceramic 3D printingen
dc.subjectindoor localizationen
dc.subjectmm-waveen
dc.subjectartificial dielectricsen
dc.subjectchipless RFIDen
dc.titleWide-Angle Ceramic Retroreflective Luneburg Lens Based on Quasi-Conformal Transformation Optics for Mm-Wave Indoor Localizationen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-177562en
sync.item.dbtypeVAVen
sync.item.insts2023.05.31 00:55:03en
sync.item.modts2023.05.31 00:14:55en
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav radioelektronikycs
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