Reconfigurable UWB circularly polarized slot antenna with three modes of operation and continuous tuning range

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dc.contributor.authorBahrami, Sirous
dc.contributor.authorMoloudian, Ghollamhosein
dc.contributor.authorSong, Ho-Jin
dc.contributor.authorBuckley, John L.
dc.date.accessioned2022-09-27T14:40:35Z
dc.date.available2022-09-27T14:40:35Z
dc.date.issued2022-03-28
dc.date.updated2022-09-27T14:32:29Z
dc.description.abstractIn this paper, a tunable circularly polarized antenna with a reconfigurable integrated feed network is proposed for cognitive radio applications. The integrated feed network is composed of an ultra-wideband (UWB) band-pass filter (BPF), a continuously tunable T-shaped resonator, and an L-shaped microstrip line. The feed network employs 3 PIN diodes to switch between different RF paths, resulting in 3 modes of operation: an ultra-wideband mode (3.5-8.5 GHz), a narrowband bandpass (BP) mode and a narrowband bandstop (BS) mode. The continuous tuning range of the bandpass/bandstop narrowband mode is realized by two DC-controlled varactor diodes. The stand-alone antenna attains a -10 dB impedance bandwidth of 92.3 % (3.5-9.5 GHz), while it attains an Axial Ratio (AR) bandwidth of 88.3 % (3.1-8 GHz) in its wideband mode. The overlapped bandwidth (matching and AR) of the reconfigurable antenna is 78.2 % (3.5-8 GHz). The communicating state covers 80% of the sensing spectrum while maintaining circularly polarized radiation. The measured peak realized gain values for the wideband mode range from 2 to 3.2 dBic while the maximum gain for the narrowband mode ranged from 1.95 to 3.1 dBic. The measured results show that the proposed filtenna is suitable for UWB cognitive radio systemsen
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationBahrami, S., Moloudian, G., Song, H.-J. and Buckley, J. L. (2022) 'Reconfigurable UWB Circularly Polarized Slot Antenna with Three Modes of Operation and Continuous Tuning Range', IEEE Transactions On Antennas and Propagation, (6 pp). doi: 10.1109/TAP.2022.3161358en
dc.identifier.doi10.1109/TAP.2022.3161358en
dc.identifier.endpage6en
dc.identifier.issn0018-926X
dc.identifier.journaltitleIEEE Transactions On Antennas and Propagationen
dc.identifier.startpage1en
dc.identifier.urihttps://hdl.handle.net/10468/13677
dc.language.isoenen
dc.publisherIEEEen
dc.relation.urihttps://doi.org/10.1109/TAP.2022.3161358
dc.rights© 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other worksen
dc.subjectAntennasen
dc.subjectBand-pass filtersen
dc.subjectCircularly polarized antennaen
dc.subjectcognitive radioen
dc.subjectMicrostrip antennasen
dc.subjectmicrostrip slot antennaen
dc.subjectNarrowbanden
dc.subjectreconfigurable antennaen
dc.subjectSlot antennasen
dc.subjectTransmitting antennasen
dc.subjectTuningen
dc.titleReconfigurable UWB circularly polarized slot antenna with three modes of operation and continuous tuning rangeen
dc.typeArticle (peer-reviewed)en
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