Experimental verification of metamaterial based subwavelength microwave absorbers

buir.contributor.authorÖzbay, Ekmel
buir.contributor.orcidÖzbay, Ekmel|0000-0003-2953-1828
dc.citation.epage083113-6en_US
dc.citation.issueNumber8en_US
dc.citation.spage083113-1en_US
dc.citation.volumeNumber108en_US
dc.contributor.authorAlici, K. B.en_US
dc.contributor.authorBilotti, F.en_US
dc.contributor.authorVegni, L.en_US
dc.contributor.authorÖzbay, Ekmelen_US
dc.date.accessioned2016-02-08T09:56:29Z
dc.date.available2016-02-08T09:56:29Z
dc.date.issued2010-10-29en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.departmentDepartment of Physicsen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractWe designed, implemented, and experimentally characterized electrically thin microwave absorbers by using the metamaterial concept. The absorbers consist of (i) a metal back plate and an artificial magnetic material layer; (ii) metamaterial back plate and a resistive sheet layer. We investigated absorber performance in terms of absorbance, fractional bandwidth, and electrical thickness, all of which depend on the dimensions of the metamaterial unit cell and the distance between the back plate and metamaterial layer. As a proof of concept, we demonstrated a λ/4.7 thick absorber of type I, with a 99.8% absorption peak along with a 8% fractional bandwidth. We have shown that as the electrical size of the metamaterial unit cell decreases, the absorber electrical thickness can further be reduced. We investigated this concept by using two different magnetic metamaterial inclusions: the split-ring resonator (SRR) and multiple SSR (MSRR). We have also demonstrated experimentally a λ/4.7 and a λ/4.2 thick absorbers of type II, based on SRR and MSRR magnetic metamaterial back plates, respectively. The absorption peak of the SRR layout is 97.4%, while for the MSRR one the absorption peak is 98.4%. The 10 dB bandwidths were 9.9% and 9.6% for the SRR and MSRR cases, respectively.en_US
dc.identifier.doi10.1063/1.3493736en_US
dc.identifier.issn0021-8979
dc.identifier.urihttp://hdl.handle.net/11693/22174
dc.language.isoEnglishen_US
dc.publisherAmerican Institute of Physicsen_US
dc.relation.isversionofhttp://dx.doi.org/10.1063/1.3493736en_US
dc.source.titleJournal of Applied Physicsen_US
dc.subjectAbsorbancesen_US
dc.subjectAbsorption peaksen_US
dc.subjectArtificial magnetic materialsen_US
dc.subjectElectrical thicknessen_US
dc.subjectExperimental verificationen_US
dc.subjectFractional bandwidthsen_US
dc.subjectMagnetic metamaterialsen_US
dc.subjectMicrowave absorbersen_US
dc.subjectProof of concepten_US
dc.subjectResistive sheetsen_US
dc.subjectSplitring resonatorsen_US
dc.subjectSub-wavelengthen_US
dc.subjectType IIen_US
dc.subjectUnit cellsen_US
dc.subjectBandwidthen_US
dc.subjectMagnetic materialsen_US
dc.subjectMetamaterialsen_US
dc.subjectPlate metalen_US
dc.subjectRing gagesen_US
dc.subjectSheet metalen_US
dc.subjectAbsorptionen_US
dc.titleExperimental verification of metamaterial based subwavelength microwave absorbersen_US
dc.typeArticleen_US
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