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dc.contributor.authorVrba, D.
dc.contributor.authorPolivka, M.
dc.date.accessioned2016-03-17T14:03:52Z
dc.date.available2016-03-17T14:03:52Z
dc.date.issued2009-04cs
dc.identifier.citationRadioengineering. 2009, vol. 18, č. 1, s. 1-8. ISSN 1210-2512cs
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/57071
dc.description.abstractThe radiation as well as antenna efficiency of very thin profile zeroth-order resonator (ZOR) antenna, implemented in negative phase velocity (NPV) microstrip transmission line (TL) structure, has been solved by the method of moment simulator IE3D. The radiation is investigated using individual portions of the ZOR antenna that shows significant values of the surface current density. Dominantly radiating parts have been identified, geometrically emphasized by means of the increase in the antenna height over the ground plane from 1/105 to 1/8 λ0. The measured parameters of the improved antenna prototype have been enhanced so they reached the following values (compared to original ones): gain 5.0 dBi (-3.0 dBi), antenna efficiency 97.7 % (9.5 %).en
dc.formattextcs
dc.format.extent1-8cs
dc.format.mimetypeapplication/pdfen
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2009/09_01_001_008.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectAntenna efficiencyen
dc.subjectelectrically small antennaen
dc.subjectmetamaterialen
dc.subjectnegative phase velocityen
dc.subjectradiation efficiencyen
dc.subjectzeroth-order resonatoren
dc.titleRadiation Efficiency Improvement of Zeroth-Order Resonator Antennaen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
dc.coverage.issue1cs
dc.coverage.volume18cs
dc.rights.accessopenAccessen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen


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