• DocumentCode
    1039715
  • Title

    Cryogenic sapphire microwave resonator-oscillator with exceptional stability

  • Author

    Luiten, A.N. ; Mann, A.G. ; Blair, D.G.

  • Author_Institution
    Dept. of Phys., Western Australia Univ., Nedlands, WA
  • Volume
    30
  • Issue
    5
  • fYear
    1994
  • fDate
    3/3/1994 12:00:00 AM
  • Firstpage
    417
  • Lastpage
    419
  • Abstract
    Microwave oscillators of exceptional short term stability have been realised from cryogenic sapphire resonators with loaded Q-factors of 109 at X-band and 6K by employing a synthesis of loop oscillator operation with active Pound frequency stabilisation. These oscillators have exhibited a fractional frequency stability of 3-4×10-15 for integration times from 0.3 to 100 degrading to 10-14 at 1000 s, and long term drifts of a few parts in 1013 per day
  • Keywords
    Q-factor; cryogenics; dielectric resonators; frequency stability; microwave oscillators; sapphire; solid-state microwave circuits; 6 K; Al2O3; X-band; active Pound frequency stabilisation; cryogenic sapphire resonators; loaded Q-factors; loop oscillator operation; microwave resonator-oscillator; short term stability;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:19940271
  • Filename
    273259
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1039715