High-gain, Circularly-polarized THz Antenna with Proper Modeling of Structures with Thin Metallic Walls

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dc.contributor.authorWarmowska, Dominikacs
dc.contributor.authorAtia Abdalmalak, Kerloscs
dc.contributor.authorGarcía Muoz, Luis Enriquecs
dc.contributor.authorRaida, Zbyněkcs
dc.coverage.issue1cs
dc.coverage.volume8cs
dc.date.accessioned2020-08-04T11:00:49Z
dc.date.available2020-08-04T11:00:49Z
dc.date.issued2020-08-28cs
dc.description.abstractIn the paper, a corporate feed antenna array with slot radiators and a layer of polarizing patches is designed to operate at 350 GHz. The antenna is conceived as a silicon structure fully metalized by gold. Different methods for modeling thin gold layers at terahertz frequencies are compared and the optimum approaches are chosen depending on the thickness of the metal layer and its relation to the skin depth. Two designed antenna arrays are in 2×2 and 4×4 configuration, radiate circularly polarized waves, and have high gains of 13.8 dBi and 18.4 dBi, respectively. Antenna arrays have a low profile of only 1.3 0. Cheaper and more available manufacturing technology is presented and discussed in detail together with the measurement results of three manufactured prototypes. Small deviations between the simulated results and the measured ones are obtained due to a lower surface roughness, which is confirmed by the scanning probe microscope. Comparison with state-of-the-art antenna arrays demonstrates that the proposed arrays excel in easy/low-cost manufacturing, high gain, circular polarization with good axial-ratio bandwidth, compact size, and the possibility to easily extend the array into a larger version.en
dc.formattextcs
dc.format.extent125223-125233cs
dc.format.mimetypeapplication/pdfcs
dc.identifier.citationIEEE Access. 2020, vol. 8, issue 1, p. 125223-125233.en
dc.identifier.doi10.1109/ACCESS.2020.3007576cs
dc.identifier.issn2169-3536cs
dc.identifier.other164432cs
dc.identifier.urihttp://hdl.handle.net/11012/193381
dc.language.isoencs
dc.publisherIEEEcs
dc.relation.ispartofIEEE Accesscs
dc.relation.urihttps://ieeexplore.ieee.org/document/9133564cs
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.subjectAntenna arraysen
dc.subjectAntennas and propagationen
dc.subjectModelingen
dc.subjectNanofabricationen
dc.subjectTerahertz antenna arrayen
dc.subjectterahertz gold conductivityen
dc.subjectthin metal modeling.en
dc.titleHigh-gain, Circularly-polarized THz Antenna with Proper Modeling of Structures with Thin Metallic Wallsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
sync.item.dbidVAV-164432en
sync.item.dbtypeVAVen
sync.item.insts2021.03.29 20:54:07en
sync.item.modts2021.03.29 20:14:34en
thesis.grantorVysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií. Ústav radioelektronikycs
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