• DocumentCode
    925294
  • Title

    Attainment of a low-noise high-power and highly stable Gunn oscillator by coupling to a superconducting cavity

  • Author

    Jimenez, J.J. ; Benard, J. ; Sudraud, P. ; Septier, A.

  • Author_Institution
    Universite Paris-XI, Centre d´´ORSAY, France
  • Volume
    61
  • Issue
    1
  • fYear
    1973
  • Firstpage
    123
  • Lastpage
    124
  • Abstract
    A 100-mW Gunn-diode oscillator has been coupled to a 5 × 108Q factor superconducting Nb cavity. The frequency stability is then improved up to 1.8 × 10-11over a measuring time of 10s. The long-term frequency shift is removed by placing the cavity in a constant pressure vessel cooled by the He bath. The FM noise has been measured at modulating frequencies as close to the carrier as 0.1 Hz.
  • Keywords
    Frequency measurement; Frequency modulation; Gunn devices; Helium; Niobium; Oscillators; Q factor; Stability; Superconducting device noise; Time measurement;
  • fLanguage
    English
  • Journal_Title
    Proceedings of the IEEE
  • Publisher
    ieee
  • ISSN
    0018-9219
  • Type

    jour

  • DOI
    10.1109/PROC.1973.8981
  • Filename
    1450911
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=925294