• DocumentCode
    1515003
  • Title

    Noise figure measurement of three-port differential low-noise amplifiers

  • Author

    Prinsloo, D.S. ; Meyer, P.

  • Author_Institution
    Dept. of Electr. & Electron. Eng., Stellenbosch Univ., Stellenbosch, South Africa
  • Volume
    48
  • Issue
    10
  • fYear
    2012
  • Firstpage
    578
  • Lastpage
    580
  • Abstract
    A measurement procedure to de-embed the noise figure (NF) of a three-port differential low-noise amplifier (LNA) from single-ended (SE) measurements is presented. An approximate solution for the differential NF is found in terms of two SE noise figure and gain measurements and the sensitivity of the de-embedded NF to unsymmetrical performance is analysed. The theory presented is applied to a three-port differential LNA and the de-embedded NF is compared to that of an equivalent SE LNA design.
  • Keywords
    approximation theory; gain measurement; low noise amplifiers; noise measurement; SE gain measurements; SE measurements; SE noise figure measurement; approximate solution; differential NF; equivalent SE LNA design; single-ended measurements; three-port differential LNA; three-port differential low-noise amplifiers;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el.2012.0638
  • Filename
    6198531
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1515003