Reconfigurable nested ring-split ring transmitarray unit cell employing the element rotation method by microfluidics

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dc.citation.epage1167en_US
dc.citation.issueNumber3en_US
dc.citation.spage1163en_US
dc.citation.volumeNumber63en_US
dc.contributor.authorErdil, E.en_US
dc.contributor.authorTopalli, K.en_US
dc.contributor.authorEsmaeilzad, N. S.en_US
dc.contributor.authorZorlu, O.en_US
dc.contributor.authorKulah, H.en_US
dc.contributor.authorAydin, C. O.en_US
dc.date.accessioned2016-02-08T09:59:31Z
dc.date.available2016-02-08T09:59:31Z
dc.date.issued2015en_US
dc.departmentNanotechnology Research Center (NANOTAM)en_US
dc.description.abstractA continuously tunable, circularly polarized X-band microfluidic transmitarray unit cell employing the element rotation method is designed and fabricated. The unit cell comprises a double layer nested ring-split ring structure realized as microfluidic channels embedded in Polydimethylsiloxane (PDMS) using soft lithography techniques. Conductive regions of the rings are formed by injecting a liquid metal (an alloy of Ga, In, and Sn), whereas the split region is air. Movement of the liquid metal together with the split around the ring provides 360° linear phase shift range in the transmitted field through the unit cell. A circularly polarized unit cell is designed to operate at 8.8 GHz, satisfying the necessary phase shifting conditions provided by the element rotation method. Unit cell prototypes are fabricated and the proposed concept is verified by the measurements using waveguide simulator method, within the frequency range of 8-10 GHz. The agreement between the simulation and measurement results is satisfactory, illustrating the viability of the approach to be used in reconfigurable antennas and antenna arrays.en_US
dc.description.provenanceMade available in DSpace on 2016-02-08T09:59:31Z (GMT). No. of bitstreams: 1 bilkent-research-paper.pdf: 70227 bytes, checksum: 26e812c6f5156f83f0e77b261a471b5a (MD5) Previous issue date: 2015en_US
dc.identifier.doi10.1109/TAP.2014.2387424en_US
dc.identifier.issn0018-926X
dc.identifier.urihttp://hdl.handle.net/11693/22392
dc.language.isoEnglishen_US
dc.publisherInstitute of Electrical and Electronics Engineersen_US
dc.relation.isversionofhttp://dx.doi.org/10.1109/TAP.2014.2387424en_US
dc.source.titleIEEE Transactions on Antennas and Propagationen_US
dc.subjectBeam steeringen_US
dc.subjectCircularly polarizeden_US
dc.subjectElement rotation methoden_US
dc.subjectLens arrayen_US
dc.subjectLiquid metalen_US
dc.subjectMicrofluidicsen_US
dc.subjectReconfigurableen_US
dc.subjectSplit ringen_US
dc.subjectTransmitarrayen_US
dc.subjectAntenna arraysen_US
dc.subjectAntennasen_US
dc.subjectCellsen_US
dc.subjectCircular polarizationen_US
dc.subjectCytologyen_US
dc.subjectGallium alloysen_US
dc.subjectLiquid metalsen_US
dc.subjectLiquidsen_US
dc.subjectLithographyen_US
dc.subjectPhase shiften_US
dc.subjectPhase shiftersen_US
dc.subjectRotationen_US
dc.subjectSiliconesen_US
dc.subjectBeam-steeringen_US
dc.subjectCircularly polarizeden_US
dc.subjectLens arrayen_US
dc.subjectReconfigurableen_US
dc.subjectRotation methodsen_US
dc.subjectSplit ringsen_US
dc.subjectTransmit arraysen_US
dc.subjectMicrofluidicsen_US
dc.titleReconfigurable nested ring-split ring transmitarray unit cell employing the element rotation method by microfluidicsen_US
dc.typeArticleen_US

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