• DocumentCode
    3200012
  • Title

    Improved performance of a temperature compensated LN2 cooled sapphire oscillator

  • Author

    Santiago, David G. ; Wang, Rabi T. ; Dick, G. John

  • Author_Institution
    Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
  • fYear
    1995
  • fDate
    31 May-2 Jun 1995
  • Firstpage
    397
  • Lastpage
    400
  • Abstract
    We report on improved stability in a whispering gallery sapphire resonator for which the dominant WGHnll microwave mode family shows frequency-stable, compensated operation for temperatures above 77 K. Several modifications during the past year have led to significant improvements in performance. Current tests with improved thermal stability provide Allan Deviation of frequency of 2.6-4·10-13 for measurement times of 1⩽τ⩽100 seconds. We project a frequency stability of 10-14 for this resonator with stabilized housing temperature and with a mode Q of 107
  • Keywords
    circuit stability; compensation; cryogenic electronics; dielectric resonator oscillators; microwave oscillators; sapphire; 77 K; Al2O3; Allan Deviation; LN2 cooling; Q factor; frequency stability; housing temperature; microwave modes; sapphire oscillator; temperature compensation; thermal stability; whispering gallery resonator; Copper; Dielectric constant; Laboratories; Local oscillators; Microwave oscillators; Propulsion; Resonant frequency; Stability; Temperature; Vibrations;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Frequency Control Symposium, 1995. 49th., Proceedings of the 1995 IEEE International
  • Conference_Location
    San Francisco, CA
  • Print_ISBN
    0-7803-2500-1
  • Type

    conf

  • DOI
    10.1109/FREQ.1995.483926
  • Filename
    483926
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3200012