• DocumentCode
    1404372
  • Title

    Transposed flicker noise suppression in microwave oscillators using feedforward amplifiers

  • Author

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

  • Author_Institution
    Dept. of Electron., York Univ., UK
  • Volume
    36
  • Issue
    20
  • fYear
    2000
  • fDate
    9/28/2000 12:00:00 AM
  • Firstpage
    1710
  • Lastpage
    1711
  • Abstract
    The authors describe the design of a low noise 7.6 GHz oscillator which achieves reduced transposed flicker noise by using a feedforward GaAs based power amplifier as the oscillator feedback amplifier, 20 dB noise suppression is demonstrated, at 12.5 kHz offset, in the oscillator when the error correcting amplifier is switched on. The phase noise in the error corrected version rolls off at (1/Δf)2 at offsets >10 kHz. The phase noise performance, in the thermal noise region, is within 1 dB of the theoretical minimum
  • Keywords
    III-V semiconductors; MMIC oscillators; feedforward; flicker noise; gallium arsenide; integrated circuit noise; phase noise; thermal noise; 7.6 GHz; GaAs; error correcting amplifier; feedforward amplifiers; microwave oscillators; oscillator feedback amplifier; phase noise performance; thermal noise region; transposed flicker noise suppression;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20001201
  • Filename
    882018
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1404372