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dc.date.accessioned2020-11-23T14:44:15Z
dc.date.available2020-11-23T14:44:15Z
dc.date.issued2020-01-13
dc.identifierdoi:10.17170/kobra-202011182196
dc.identifier.urihttp://hdl.handle.net/123456789/12016
dc.description.sponsorshipGefördert im Rahmen des Projekts DEALger
dc.language.isoengeng
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subject3D printingeng
dc.subjectbroadband gain enhancementeng
dc.subjectdielectric lenseng
dc.subjectfused deposition methodeng
dc.subjectnear-zero refractive indexeng
dc.subject.ddc600
dc.title3D printed dielectric lens for the gain enhancement of a broadband antennaeng
dc.typeAufsatz
dcterms.abstractA novel 3D printed dielectric lens to enhance antenna gain parameters is presented. The lens is fabricated using a fused deposition method (FDM) which is a cost‐effective and an efficient 3D printing technique. Poly‐methyl methacrylate (PMMA) is used as a dielectric material due to its good RF properties. The thickness of the dielectric lens is 14 mm and provides a gain enhancement of up to 6.9 dBi over a wide frequency range. The dielectric lens is designed and computationally analyzed to demonstrate refractive index value close to zero. It has been shown that impedance‐matched near‐zero refractive index lens geometry eliminates strong reflections, and consequently enhances the antenna gain. A correlation is established between the individually, stacked unit cell layers and near‐zero refractive index cut‐off frequencies. The claim is substantiated through measured results using a broadband Vivaldi antenna. A gain enhancement of up to 6.9 dBi is recorded for the bandwidth from 13.5 to 24 GHz. An excellent correlation is reported between the measured and simulated results.eng
dcterms.accessRightsopen access
dcterms.creatorAnwar, Muhammad S.
dcterms.creatorAbufanas, Hasan
dcterms.creatorBangert, Axel
dc.relation.doidoi:10.1002/mmce.22115
dc.subject.swd3D-Druckger
dc.subject.swdLinseger
dc.subject.swdBreitbandantenneger
dc.subject.swdFused Deposition Modelingger
dc.type.versionpublishedVersion
dcterms.source.identifierEISSN 1099-047X
dcterms.source.issueIssue 4
dcterms.source.journalInternational Journal of RF and Microwave Computer-Aided Engineeringeng
dcterms.source.volumeVolume 30
kup.iskupfalse
dcterms.source.articlenumbere22115


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Attribution-NonCommercial-NoDerivatives 4.0 International
Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 International