• DocumentCode
    894710
  • Title

    The use of a circulator in device noise factor measurements

  • Author

    Bechtel, G.

  • Volume
    56
  • Issue
    1
  • fYear
    1968
  • Firstpage
    86
  • Lastpage
    86
  • Abstract
    It is shown that the use of a circulator between the device under test and the preamplifier removes the necessity for matching and that the noise factor of the device can be obtained from simple measurements of insertion gain S21, as well as the overall noise factor if the noise factor of the circulator-preamplifier combination from a matched noise generator is known.
  • Keywords
    Circuit noise; Controllability; Gain measurement; Impedance measurement; Noise generators; Noise measurement; Power measurement; Preamplifiers; Semiconductor device noise; Testing;
  • fLanguage
    English
  • Journal_Title
    Proceedings of the IEEE
  • Publisher
    ieee
  • ISSN
    0018-9219
  • Type

    jour

  • DOI
    10.1109/PROC.1968.6156
  • Filename
    1448086
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=894710