A 0.6–4.0 GHz RF-Resampling Beamforming Receiver with Frequency-Scaling True-Time-Delays up to Three Carrier Cycles

dc.contributorAalto-yliopistofi
dc.contributorAalto Universityen
dc.contributor.authorSpoof, Kalleen_US
dc.contributor.authorZahra, Mahwishen_US
dc.contributor.authorUnnikrishnan, Vishnuen_US
dc.contributor.authorStadius, Karien_US
dc.contributor.authorKosunen, Markoen_US
dc.contributor.authorRyynänen, Jussien_US
dc.contributor.departmentDepartment of Electronics and Nanoengineeringen
dc.contributor.groupauthorJussi Ryynänen Groupen
dc.date.accessioned2020-08-06T12:17:57Z
dc.date.available2020-08-06T12:17:57Z
dc.date.issued2020en_US
dc.description| openaire: EC/H2020/704947/EU//ADVANTAG5
dc.description.abstractTrue-time-delays (TTDs) enable wideband analog and hybrid beamforming by mitigating the beam squint problem. This letter reports a TTD beamforming receiver supporting delays up to three carrier-frequency cycles. The implementation is the first published work in which the delays scale with the carrier frequency. The scaling enables TTDs for large arrays at low-GHz frequencies where long delays are required due to \lambda _{c}/2 antenna spacing. The delays are implemented through delayed resampling of a passive mixer's discrete-time output. Driving the mixers with pulse-skipped local oscillator (LO) signals allows the delay range to exceed one carrier cycle. A polyphase receiver structure prevents aliasing of noise and unwanted tones caused by LO pulse-skipping. Our prototype implementation demonstrates squint-free beamforming for an-800 MHz instantaneous RF bandwidth. The proposed TTD is efficient for large arrays since the power consumption per antenna is only 5-13-mW across the 0.6-4.0-GHz frequency range. The prototype was implemented in 28-nm FD-SOI CMOS, and the die area including bonding pads is only 1.2 mm2.en
dc.description.versionPeer revieweden
dc.format.mimetypeapplication/pdfen_US
dc.identifier.citationSpoof, K, Zahra, M, Unnikrishnan, V, Stadius, K, Kosunen, M & Ryynänen, J 2020, ' A 0.6–4.0 GHz RF-Resampling Beamforming Receiver with Frequency-Scaling True-Time-Delays up to Three Carrier Cycles ', IEEE Solid State Circuits Letters, vol. 3, 9152038, pp. 234 - 237 . https://doi.org/10.1109/LSSC.2020.3012654en
dc.identifier.doi10.1109/LSSC.2020.3012654en_US
dc.identifier.issn2573-9603
dc.identifier.otherPURE UUID: e6dd1626-dac1-456f-bd3d-e14e4b13cbdeen_US
dc.identifier.otherPURE ITEMURL: https://research.aalto.fi/en/publications/e6dd1626-dac1-456f-bd3d-e14e4b13cbdeen_US
dc.identifier.otherPURE LINK: http://www.scopus.com/inward/record.url?scp=85089293069&partnerID=8YFLogxKen_US
dc.identifier.otherPURE FILEURL: https://research.aalto.fi/files/44438846/Spoof_Ghz_RF_resampling_beamforming_receiver_IEEESSCL.pdfen_US
dc.identifier.urihttps://aaltodoc.aalto.fi/handle/123456789/45603
dc.identifier.urnURN:NBN:fi:aalto-202008064562
dc.language.isoenen
dc.publisherIEEE
dc.relationinfo:eu-repo/grantAgreement/EC/H2020/704947/EU//ADVANTAG5en_US
dc.relation.ispartofseriesIEEE Solid State Circuits Lettersen
dc.rightsopenAccessen
dc.subject.keywordAnalog beamformingen_US
dc.subject.keywordbeam squinten_US
dc.subject.keywordCMOSen_US
dc.subject.keywordhybrid beamformingen_US
dc.subject.keywordphased arrayen_US
dc.subject.keywordradio receiveren_US
dc.subject.keywordresamplingen_US
dc.subject.keywordRF samplingen_US
dc.subject.keywordspatial filteringen_US
dc.subject.keywordtrue-time-delayen_US
dc.titleA 0.6–4.0 GHz RF-Resampling Beamforming Receiver with Frequency-Scaling True-Time-Delays up to Three Carrier Cyclesen
dc.typeA1 Alkuperäisartikkeli tieteellisessä aikakauslehdessäfi
dc.type.versionacceptedVersion
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