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

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dc.contributor Aalto-yliopisto fi
dc.contributor Aalto University en
dc.contributor.author Spoof, Kalle
dc.contributor.author Zahra, Mahwish
dc.contributor.author Unnikrishnan, Vishnu
dc.contributor.author Stadius, Kari
dc.contributor.author Kosunen, Marko
dc.contributor.author Ryynänen, Jussi
dc.date.accessioned 2020-08-06T12:17:57Z
dc.date.available 2020-08-06T12:17:57Z
dc.date.issued 2020
dc.identifier.citation Spoof , 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.2020.3012654 en
dc.identifier.issn 2573-9603
dc.identifier.other PURE UUID: e6dd1626-dac1-456f-bd3d-e14e4b13cbde
dc.identifier.other PURE ITEMURL: https://research.aalto.fi/en/publications/e6dd1626-dac1-456f-bd3d-e14e4b13cbde
dc.identifier.other PURE LINK: http://www.scopus.com/inward/record.url?scp=85089293069&partnerID=8YFLogxK
dc.identifier.other PURE FILEURL: https://research.aalto.fi/files/44438846/Spoof_Ghz_RF_resampling_beamforming_receiver_IEEESSCL.pdf
dc.identifier.uri https://aaltodoc.aalto.fi/handle/123456789/45603
dc.description | openaire: EC/H2020/704947/EU//ADVANTAG5
dc.description.abstract True-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.format.mimetype application/pdf
dc.language.iso en en
dc.publisher IEEE
dc.relation info:eu-repo/grantAgreement/EC/H2020/704947/EU//ADVANTAG5
dc.relation.ispartofseries IEEE Solid State Circuits Letters en
dc.rights openAccess en
dc.title A 0.6–4.0 GHz RF-Resampling Beamforming Receiver with Frequency-Scaling True-Time-Delays up to Three Carrier Cycles en
dc.type A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä fi
dc.description.version Peer reviewed en
dc.contributor.department Jussi Ryynänen Group
dc.contributor.department Department of Electronics and Nanoengineering
dc.subject.keyword Analog beamforming
dc.subject.keyword beam squint
dc.subject.keyword CMOS
dc.subject.keyword hybrid beamforming
dc.subject.keyword phased array
dc.subject.keyword radio receiver
dc.subject.keyword resampling
dc.subject.keyword RF sampling
dc.subject.keyword spatial filtering
dc.subject.keyword true-time-delay
dc.identifier.urn URN:NBN:fi:aalto-202008064562
dc.identifier.doi 10.1109/LSSC.2020.3012654
dc.type.version acceptedVersion

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