A voltage controlled oscillator using Barium Strontium Titanate (BST) thin film varactor

Alan Victor, Jayesh Nath, Dipankar Ghosh, Brian Boyette, Jon Paul Maria, Michael B. Steer, Angus I. Kingon, Gregory T. Stauf

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

18 Scopus citations

Abstract

Barium Strontium Titanate (BST) has a fielddependent permittivity and can be used as a dielectric in voltage tunable capacitors or varactors. These BST-based varactors are passive devices and have significantly different properties compared to semiconductor varactors. A voltage tunable oscillator using a BST thin film varactor was designed and characterized. The frequency of oscillation varied from 34.8MHz to 44.5 MHz (28% tuning) upon application of 7 volts tuning voltage. The VCO gain was 1.38MHz/V and the 2 nd harmonic was over 23dB below the fundamental throughout the tuning range.

Original languageEnglish (US)
Title of host publicationProceedings - 2004 IEEE Radio and Wireless Conference, RAWCON
EditorsG. Heiter
Pages91-94
Number of pages4
StatePublished - Dec 1 2004
EventProceedings - 2004 IEEE Radio and Wireless Conference, RAWCON - Atlanta, GA, United States
Duration: Sep 19 2004Sep 22 2004

Publication series

NameProceedings - 2004 IEEE Radio and Wireless Conference, RAWCON

Other

OtherProceedings - 2004 IEEE Radio and Wireless Conference, RAWCON
CountryUnited States
CityAtlanta, GA
Period9/19/049/22/04

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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