An Ultra-Thin Low-Frequency Tunable Metamaterial Absorber Based on Lumped Element

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dc.contributor.authorZhang, GuoWen
dc.contributor.authorGao, Jun
dc.contributor.authorCao, Xiangyu
dc.contributor.authorYang, HuanHuan
dc.contributor.authorJidi, Liaori
dc.coverage.issue3cs
dc.coverage.volume28cs
dc.date.accessioned2020-04-30T11:26:14Z
dc.date.available2020-04-30T11:26:14Z
dc.date.issued2019-09cs
dc.description.abstractIn this paper, an ultra-thin metamaterial absorber with a stretching transformation (ST) pattern is proposed and fabricated in the low-frequency range. The absorber is composed of dielectric layer, metal patch loading resistor and variable capacitor which produce its tunability. In order to expand the tunable bandwidth, we applied the ST with various coefficients x and y to the unit cell pattern. Measurement and simulated results show that the structure can be tuned to provide a continuously variable reflectivity level of less than -10 dB from 0.68 to 2.13 GHz at bias voltages of 10–40 V. The total thickness of this absorber was only λ/31 of the center frequency. Both measurements and simulated results indicate that this absorber can be thin and achieve a tunable absorption simultaneously.en
dc.formattextcs
dc.format.extent579-584cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2019 vol. 28, č. 3, s. 579-584. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2019.0579en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/186899
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2019/19_03_0579_0584.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectlow-frequencyen
dc.subjectwidebanden
dc.subjectultra-thinen
dc.subjectST coefficientsen
dc.subjecttunability.en
dc.titleAn Ultra-Thin Low-Frequency Tunable Metamaterial Absorber Based on Lumped Elementen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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