Low phase noise, FBAR-based voltage controlled oscillator without varactor

Jong Jin Kim, Hao Zhang, Wei Pang, Hongyu Yu, Eun Sok Kim

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

8 Scopus citations

Abstract

Colpitts voltage controlled oscillator (VCO) at 1.1GHz is designed with a film bulk acoustic resonator (FBAR) as the frequency control element. The oscillator achieves an extremely low phase noise of-115 dBc/Hz at 10kHz offset, which is 19dB better than that of an LC oscillator. Voltage control of the oscillation frequency is obtained by applying a DC voltage on the FBAR, unlike a conventional VCO that uses a PN junction varactor (a significant noise contributor) to vary the oscillation frequency. The frequency tunability of the VCO is approximately -12kHz/V between -5V and + 10V.

Original languageEnglish (US)
Title of host publicationTRANSDUCERS '05 - 13th International Conference on Solid-State Sensors and Actuators and Microsystems - Digest of Technical Papers
Pages1063-1066
Number of pages4
StatePublished - 2005
Event13th International Conference on Solid-State Sensors and Actuators and Microsystems, TRANSDUCERS '05 - Seoul, Korea, Republic of
Duration: Jun 5 2005Jun 9 2005

Publication series

NameDigest of Technical Papers - International Conference on Solid State Sensors and Actuators and Microsystems, TRANSDUCERS '05
Volume1

Other

Other13th International Conference on Solid-State Sensors and Actuators and Microsystems, TRANSDUCERS '05
CountryKorea, Republic of
CitySeoul
Period6/5/056/9/05

ASJC Scopus subject areas

  • Engineering(all)

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    Kim, J. J., Zhang, H., Pang, W., Yu, H., & Kim, E. S. (2005). Low phase noise, FBAR-based voltage controlled oscillator without varactor. In TRANSDUCERS '05 - 13th International Conference on Solid-State Sensors and Actuators and Microsystems - Digest of Technical Papers (pp. 1063-1066). [2E4.152] (Digest of Technical Papers - International Conference on Solid State Sensors and Actuators and Microsystems, TRANSDUCERS '05; Vol. 1).