Tracking phaselock loop characteristics with a VCO using a Barium Strontium Titanate (BST) thin-film varactor

A. Victor, J. Nath, K. G. Gard, J. P. Maria, A. I. Kingon, M. B. Steer

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Barium Strontium Titanate (BST) varactors utilized in a VCO demonstrate unique tuning characteristics compared to junction varactors. A 2.7 GHz microstrip line VCO operates in a tracking phaselock loop configured as an X4 frequency multiplier. BST oscillator tuning and the effect on loop dynamics is observed by the intentional design of an under damped system. Oscillator noise correction and peaking is noted particularly at low tune voltages. Loop dynamics are addressed through proper design of the loop compensator filter. The differences between BST varactor and junction varactor operation in frequency control are noted.

Original languageEnglish (US)
Title of host publicationProceedings - 2007 IEEE Radio and Wireless Symposium, RWS
PublisherIEEE Computer Society
Pages289-292
Number of pages4
ISBN (Print)1424404452, 9781424404452
DOIs
StatePublished - 2007
Event2007 IEEE Radio and Wireless Symposium, RWS - Long Beach, CA, United States
Duration: Jan 9 2007Jan 11 2007

Publication series

NameProceedings - 2007 IEEE Radio and Wireless Symposium, RWS

Other

Other2007 IEEE Radio and Wireless Symposium, RWS
CountryUnited States
CityLong Beach, CA
Period1/9/071/11/07

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering

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