A low-power wide-band 20GHz VCO in 65nm CMOS

  • Guang Zhu
  • , Shengxi Diao*
  • , Fujiang Lin
  • , Daniel Guidotti
  • *Corresponding author for this work

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

3 Scopus citations

Abstract

A 20GHz (centralized at 18.7GHz) voltage controlled oscillator (VCO) is implemented in standard 65nm CMOS technology. In the design process, several design optimizations including tail current source, cross-couples dimension and inductor selection, are done to achieve a good performance without additional area requirement. Through these techniques, the measured phase noise of -98dBc/Hz@1MHz achieved at 19.97 GHz and the figure of merit (FOM) is -176dBc/Hz. With the help of digital controlled switch array, tuning range is about 15%, from 17.36 to 20.15 GHz without much performance degradation. The total current is 4.6mA under the 1.3V supply voltage, including the buffer current consumption of 0.9mA. To our best knowledge, this is the minimum current consumption for VCO in this frequency band. The area of the core circuit is only 0.35 x 0.25mm 2.

Original languageEnglish
Title of host publicationProceedings of 2012 5th Global Symposium on Millimeter-Waves, GSMM 2012
Pages291-294
Number of pages4
DOIs
StatePublished - 2012
Externally publishedYes
Event2012 5th Global Symposium on Millimeter-Waves, GSMM 2012 - Harbin, China
Duration: 27 May 201230 May 2012

Publication series

NameProceedings of 2012 5th Global Symposium on Millimeter-Waves, GSMM 2012

Conference

Conference2012 5th Global Symposium on Millimeter-Waves, GSMM 2012
Country/TerritoryChina
CityHarbin
Period27/05/1230/05/12

Keywords

  • 20 GHz
  • VCO
  • low power
  • wide band

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