An electronically-tunable, flexible and transparent antenna with unidirectional radiation pattern

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dc.contributor.authorSayem, Abu Sadat Md.
dc.contributor.authorSimorangkir, Roy B. V. B.
dc.contributor.authorEsselle, Karu P.
dc.contributor.authorThalakotuna, Dushmantha N.
dc.contributor.authorLalbakhsh, Ali
dc.contributor.funderAustralian Research Councilen
dc.contributor.funderUniversity of Technology Sydneyen
dc.date.accessioned2022-02-11T14:56:29Z
dc.date.available2022-02-11T14:56:29Z
dc.date.issued2021-09-20
dc.description.abstractIn this paper, a frequency reconfigurable, conformal, durable, optically transparent, and unidirectional antenna design is demonstrated for the first time. In the demonstrated design, continuous frequency tuning is achieved by integrating a varactor diode in a folded dipole radiator, which is backed by a water-filled reflector to produce unidirectional radiation pattern mimicking the radiation characteristics of microstrip patch antennas. The radiating component of the explored antenna is manufactured from transparent conductive fabric, which has about 72% optical transparency and occupies a small fraction of the entire antenna. The water-filled reflector is located underneath the dipole radiator. Water is contained inside a rectangular box made from flexible-transparent-hydrophobic polymer, polydimethylsiloxane (PDMS). Both water and PDMS are highly transparent, moreover, PDMS has excellent flexibility and water is a liquid, thus, the demonstrated antenna exhibits excellent transparency and durability against physical deformation. The tiny varactor diode integrated in the folded dipole radiator has insignificant effect on the overall transparency and flexibility of the antenna. The explored design has been numerically investigated and experimentally validated through measurements. Measurements show continuous frequency tuning from 2.38 GHz to 2.67 GHz with an average 10-dB return loss bandwidth of about 170 MHz. Moreover, the antenna maintains good front-to-back ratio in the entire operating banden
dc.description.sponsorshipAustralian Research Council (Discovery Grants Scheme); University of Technology Sydney (Faculty of Engineering and Information Technology (IT) Seed Grant)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationSayem, A. S. M, Simorangkir, R. B. V. B., Esselle, K. P., Thalakotuna, D. N., and Lalbakhsh, A. (2021) 'An electronically-tunable, flexible and transparent antenna with unidirectional radiation pattern', IEEE Access, 9, pp. 147042-147053. doi: 10.1109/ACCESS.2021.3114004en
dc.identifier.doi10.1109/ACCESS.2021.3114004en
dc.identifier.eissn2169-3536
dc.identifier.endpage147053en
dc.identifier.journaltitleIEEE Accessen
dc.identifier.startpage147042en
dc.identifier.urihttps://hdl.handle.net/10468/12558
dc.identifier.volume9en
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.rights© 2021 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en
dc.subject3-D printingen
dc.subjectCompositeen
dc.subjectConformalen
dc.subjectFolded dipoleen
dc.subjectPolymeren
dc.subjectPure wateren
dc.subjectTunableen
dc.subjectAntennasen
dc.subjectDipole antennasen
dc.subjectVaractorsen
dc.subjectAntenna radiation patternsen
dc.subjectAntenna accessoriesen
dc.subjectTuningen
dc.subjectOptical reflectionen
dc.titleAn electronically-tunable, flexible and transparent antenna with unidirectional radiation patternen
dc.typeArticle (peer-reviewed)en
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