• DocumentCode
    3783237
  • Title

    Flicker noise reduction using GaAs microwave feedforward amplifiers

  • Author

    C.D. Broomfield;J.K.A. Everard

  • Author_Institution
    York Univ., UK
  • fYear
    2000
  • Firstpage
    525
  • Lastpage
    530
  • Abstract
    This paper describes the analysis and design of a microwave feedforward power amplifier optimised for maximum close to carrier flicker noise suppression. Three amplifier topologies are analysed with respect to system noise figure and ease of production. Potential problems affecting error signal cancellation are highlighted and discussed. A feedforward 1 W power amplifier offering 20 dB flicker noise power reduction over 1-30 kHz offset from a 7.7 GHz carrier has been produced.
  • Keywords
    "1f noise","Gallium arsenide","Microwave amplifiers","FETs","Frequency","Low-frequency noise","Semiconductor device noise","Microwave oscillators","Power amplifiers","Phase noise"
  • Publisher
    ieee
  • Conference_Titel
    Frequency Control Symposium and Exhibition, 2000. Proceedings of the 2000 IEEE/EIA International
  • ISSN
    1075-6787
  • Print_ISBN
    0-7803-5838-4
  • Type

    conf

  • DOI
    10.1109/FREQ.2000.887411
  • Filename
    887411
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3783237