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dc.contributor.authorChen, Ruien
dc.contributor.authorYang, Shuaien
dc.contributor.authorNdifson, AMen
dc.contributor.authorWhite, Ianen
dc.contributor.authorPenty, Richarden
dc.contributor.authorCrisp, Michaelen
dc.date.accessioned2019-07-18T23:30:49Z
dc.date.available2019-07-18T23:30:49Z
dc.date.issued2019-09-01en
dc.identifier.isbn9781728105895en
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/294784
dc.description.abstractA novel ultra-high-frequency (UHF) RFID reader antenna with 2 dimensional (2D) beam-scanning capability and a wide 3 dB axial ratio (AR) beamwidth of over 136 degrees is presented. The proposed antenna consists of three concentric metal rings, each having a branch wire to stimulate circular polarization (CP) and a separate feed. The antenna is able to perform a 2D beam-scan with a relatively stable gain (9-11 dBic) from 0 degree to 360 degree in azimuth, and -40 degree to 40 degree in zenith. The minima of the antenna's AR beamwidth follows the peak gain direction, giving an equivalent 3 dB AR beamwidth of 136 degree for every phi cut, wider than current state-of-the-art. Moreover, the proposed antenna array presents a 50 Ohm impedance with no impedance matching network, and requires only two phase shifters to steer, significantly reducing the design complexity. The antenna's -10 dB return loss bandwidth is from 860 MHz to 880 MHz, covering the lower band UHF RFID frequencies in the European Telecommunications Standards Institute (ETSI) region.
dc.rightsAll rights reserved
dc.rights.uri
dc.titleBeam scanning UHF RFID reader antenna with high gain and wide axial ratio beamwidthen
dc.typeConference Object
prism.endingPage379
prism.publicationDate2019en
prism.publicationName2019 IEEE International Conference on RFID Technology and Applications, RFID-TA 2019en
prism.startingPage374
dc.identifier.doi10.17863/CAM.41881
dcterms.dateAccepted2019-07-08en
rioxxterms.versionofrecord10.1109/RFID-TA.2019.8891995en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2019-09-01en
dc.contributor.orcidChen, Rui [0000-0002-9318-9126]
dc.contributor.orcidYang, Shuai [0000-0003-3572-516X]
dc.contributor.orcidWhite, Ian [0000-0002-7368-0305]
dc.contributor.orcidPenty, Richard [0000-0003-4605-1455]
dc.contributor.orcidCrisp, Michael [0000-0002-3548-9235]
rioxxterms.typeConference Paper/Proceeding/Abstracten
pubs.funder-project-idTechnology Strategy Board (113020)
pubs.funder-project-idEPSRC (EP/S019405/1)


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