• DocumentCode
    1976581
  • Title

    Minimum Frequency Noise in Oscillators Applying an Overcoupled Cavity

  • Author

    Berceli, T.

  • Author_Institution
    Research Institute for Telecommunication, 1026 Budapest, Gábor Ã\x81ron-u. 65, Hungary
  • fYear
    1979
  • fDate
    17-20 Sept. 1979
  • Firstpage
    598
  • Lastpage
    602
  • Abstract
    Frequency noise in oscillators can be reduced by circuit methods. According to our recent results, a significant reduction in frequency noise has been achieved by an overcoupled cavity. In comparison to a single cavity oscillator, the noise reduction is 10 dB with kQ2=2, and 23 dB with kQ2=5. In the experiments with a coupled cavity Gunn oscillator, an FM signal-to-noise ratio of 85 dB has been attained using visometric weighting.
  • Keywords
    Active noise reduction; Admittance; Circuit noise; Coupling circuits; Frequency; Noise level; Noise reduction; Oscillators; Phase noise; Q factor;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Microwave Conference, 1979. 9th European
  • Conference_Location
    Brighton, UK
  • Type

    conf

  • DOI
    10.1109/EUMA.1979.332642
  • Filename
    4131416
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1976581