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