A fully-printed 3D antenna with 92% quasi-isotropic and 85% CP coverage

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dc.contributor.authorSu, Zhen
dc.contributor.authorKlionovski, Kirill
dc.contributor.authorLiao, Hanguang
dc.contributor.authorLi, Weiwei
dc.contributor.authorShamim, Atif
dc.date.accessioned2022-05-04T09:19:08Z
dc.date.available2022-05-04T09:19:08Z
dc.date.issued2022-04-25
dc.date.updated2022-05-03T15:36:46Z
dc.description.abstractInternet of things (IoT) applications require orientation insensitive wireless devices to maintain stable and reliable communication. For those reasons, antennas providing a wide quasi-isotropic and circular polarization (CP) coverage are very attractive. However, achieving a wide quasi-isotropic and CP coverage simultaneously is challenging. In this work, we show that properly designed sloped dipoles on a 3D structure can maximize the CP coverage (theoretically up to 100%) even with equal-phased feed to the dipole elements. We derive the conditions and present the design graphs for the optimum slope angle for the dipole elements on a 3D hexagonal-shaped package to achieve a wide quasi-isotropic and CP coverage simultaneously. Based on the proposed theory, a practical antenna has been designed and fabricated using additive manufacturing. The measured results demonstrate a 7dB-isotropy of 92% and a CP coverage of 85%, which matches well with the predicted results from the theoretical analysis and full-wave simulations.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationSu, Z., Klionovski, K., Liao, H., Li, W. and Shamim, A. (2022) 'A fully-printed 3D antenna with 92% quasi-isotropic and 85% CP coverage', IEEE Transactions on Antennas and Propagation, 70(9), pp.7914-7922. https://doi.org/10.1109/TAP.2022.3168688en
dc.identifier.doi10.1109/TAP.2022.3168688en
dc.identifier.eissn1558-2221
dc.identifier.endpage7922
dc.identifier.issn0018-926X
dc.identifier.issued9
dc.identifier.journaltitleIEEE Transactions on Antennas and Propagationen
dc.identifier.startpage7914
dc.identifier.urihttps://hdl.handle.net/10468/13137
dc.identifier.volume70
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.rights© 2022, 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.subjectCircularly polarized antennaen
dc.subjectQuasi-isotropic radiation patternen
dc.subjectOrientation insensitive antennaen
dc.titleA fully-printed 3D antenna with 92% quasi-isotropic and 85% CP coverageen
dc.typeArticle (peer-reviewed)en
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