A 6-11GHz multi-phase VCO design with active inductors

Yu-Te Liao*, C. J. Richard Shi

*Corresponding author for this work

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

10 Scopus citations

Abstract

A multiphase VCO using differential active inductors is designed and fabricated in an IBM 0.13um CMOS process. Using active inductors, the core VCO occupies 0.3x0.4 mm2, and the central frequency can vary from 6GHz to 11GHz, exhibiting a 58% tunable frequency ranges. Exploiting current reuse, the phase noise is measured to be less than -95dBc/Hz at 1MHz offset with the measured power consumption ranging from 12 to 31mW in 6-11GHz. A signal coupling technique with phase shifting is employed to generate eight phase signals. The achieved phase errors of this design are smaller than 3°. In addition, bias compensation is shown to reduce the frequency variation under 10% while the temperature varies from -55°C to 125°C.

Original languageEnglish
Title of host publication2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
Pages988-991
Number of pages4
DOIs
StatePublished - 25 Sep 2008
Event2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008 - Seattle, WA, United States
Duration: 18 May 200821 May 2008

Publication series

NameProceedings - IEEE International Symposium on Circuits and Systems
ISSN (Print)0271-4310

Conference

Conference2008 IEEE International Symposium on Circuits and Systems, ISCAS 2008
CountryUnited States
CitySeattle, WA
Period18/05/0821/05/08

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