A K-band CMOS Low-Phase-Noise Sub-harmonically Injection-Locked QVCO with Divider-less Frequency-tracking Loop

Han Sen Yang, Ian Yi En Shen, Hong Yeh Chang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

A K-band CMOS low-phase-noise low-jitter sub-harmonically injection-locked quadrature voltage-controlled oscillator (QVCO) with divider-less frequency-tracking loop is proposed using 90-nm CMOS in this paper. The sub-harmonically injection-locked QVCO is designed using current-reused topology with enhanced self-injection coupling to achieve low dc power. To widen the locking range for the sub-harmonically injection-locked operation, a transformer coupling is adopted in the QVCO. Furthermore, a divider-less frequency-tracking loop is employed in the sub-harmonically injection-locked QVCO to adaptively align the control voltage of the QVCO. With a sub-harmonic number of 8 and a dc power consumption of 24.4 mW, the measured locking frequency range is from 21.7 to 23.2 GHz with an output power of higher than -3 dBm. The measured minimum phase noise at 1-MHz offset and jitter integrated from 1 kHz to 40 MHz are -125.2 dBc/Hz and 32.4 fs, respectively.

Original languageEnglish
Title of host publication2019 IEEE MTT-S International Microwave Symposium, IMS 2019
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages377-380
Number of pages4
ISBN (Electronic)9781728113098
DOIs
StatePublished - Jun 2019
Event2019 IEEE MTT-S International Microwave Symposium, IMS 2019 - Boston, United States
Duration: 2 Jun 20197 Jun 2019

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
Volume2019-June
ISSN (Print)0149-645X

Conference

Conference2019 IEEE MTT-S International Microwave Symposium, IMS 2019
Country/TerritoryUnited States
CityBoston
Period2/06/197/06/19

Keywords

  • CMOS
  • injection-locked
  • K-band
  • low phase noise
  • microwave and millimeter-wave (MMW)
  • RFIC
  • voltage-controlled oscilla-tor (VCO)

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