• DocumentCode
    3620306
  • Title

    Resonant-inductive degeneration for a fourfold phase-noise improvement of a 5.7GHz-band VCO

  • Author

    A. Tasic;W.A. Serdijn;J.R. Long;D.L. Harame

  • Author_Institution
    Electron. Res. Lab., Delft Univ. of Technol., Netherlands
  • fYear
    2005
  • fDate
    6/27/1905 12:00:00 AM
  • Firstpage
    236
  • Lastpage
    239
  • Abstract
    Resonant-inductive degeneration of tail-current noise in a VCO is presented in this paper. Two test oscillators are described: one designed with, and the other without resonant degeneration. By forming a resonance at twice the oscillation frequency in the emitter of the bias current source, phase noise is improved by 6dB. Phase noise of -112dBc/Hz at 1MHz offset from a 5.7GHz-band carrier and a 5.45-6.05GHz frequency tuning range are realized using oscillator with resonant-inductive degeneration, while drawing 4.8mA from a 2.2V supply.
  • Keywords
    "Resonance","Voltage-controlled oscillators","Phase noise","Circuit noise","Frequency","Noise reduction","Capacitance","Voltage","Tuning","Transconductors"
  • Publisher
    ieee
  • Conference_Titel
    Bipolar/BiCMOS Circuits and Technology Meeting, 2005. Proceedings of the
  • Print_ISBN
    0-7803-9309-0
  • Type

    conf

  • DOI
    10.1109/BIPOL.2005.1555240
  • Filename
    1555240
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3620306