• DocumentCode
    1615634
  • Title

    A K-band low phase noise transformer coupled Colpitts VCO in 0.18-µm CMOS technology

  • Author

    Hsieh, Chi-Kai ; Kao, Kun-Yao ; Lin, Kun-You

  • Author_Institution
    Dept. of Electr. Eng., Nat. Taiwan Univ., Taipei, Taiwan
  • fYear
    2011
  • Firstpage
    1626
  • Lastpage
    1629
  • Abstract
    A K-band low phase noise Colpitts VCO was developed in 0.18-μm CMOS technology. The modified Colpitts VCO which uses a transformer to combine the main transistors and current switch transistors is proposed to improve the output voltage swing and the phase noise. The VCO achieves a good phase noise of -115 dBc/Hz at 1 MHz offset, and the chip size is 0.35 mm2.
  • Keywords
    CMOS integrated circuits; MMIC oscillators; field effect MMIC; phase noise; transformers; voltage-controlled oscillators; CMOS technology; MMIC oscillators; current switch transistors; low phase noise transformer coupled Colpitts VCO; voltage swing; voltage-controlled oscillators; CMOS integrated circuits; CMOS technology; K-band; Phase noise; Transistors; Voltage-controlled oscillators; CMOS technology; Voltage-controlled oscillator; transformer;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Microwave Conference Proceedings (APMC), 2011 Asia-Pacific
  • Conference_Location
    Melbourne, VIC
  • Print_ISBN
    978-1-4577-2034-5
  • Type

    conf

  • Filename
    6174078
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1615634