Noise characteristics of an oscillator with a barium strontium titanate (BST) varactor

A. Victor, J. Nath, D. Ghosh, B. Boyette, J. P. Maria, M. B. Steer, A. I. Kingon, G. T. Stauf

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


The phase noise of an oscillator with a thin-film barium strontium titanate (BST) capacitive tuning element, or varactor, is characterised and benchmarked against the same oscillator with a silicon semiconductor junction varactor. Phase noise tracks closely with varactor Q within a specific voltage range as expected. Compared to the semiconductor varactor-based oscillator, the BST-based oscillator demonstrates reduced phase noise degradation near zero volts, but greater phase noise degradation when operated near breakdown.

Original languageEnglish (US)
Pages (from-to)96-102
Number of pages7
JournalIEE Proceedings: Microwaves, Antennas and Propagation
Issue number1
StatePublished - Feb 2006

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering


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