• DocumentCode
    3697892
  • Title

    Highly linear envelope tracking power amplifier with simple correction circuit

  • Author

    Kyunghoon Moon;Jooseung Kim;Sangsu Jin;Byungjoon Park;Yunsung Cho;Min Park;Bumman Kim

  • Author_Institution
    Department of Electrical Engineering, Pohang University of Science and Technology, 77, Cheongam-Ro, Nam-Gu, Gyeongbuk, Korea
  • fYear
    2015
  • fDate
    5/1/2015 12:00:00 AM
  • Firstpage
    127
  • Lastpage
    130
  • Abstract
    In this paper, we propose an envelope tracking (ET) power amplifier (PA) with a simple correction circuit (SCC) for linear operation. The supply dependent AM-AM and AM-PM distortion of an ET PA is linearized by the SCC which is fabricated on chip. The PA and supply modulator are fabricated using I/O device of CMOS 40nm process. For the 9.35-dB peak-to-average-power ratio, 256-QAM IEEE 802.11ah signal, the ET PA delivers a power-added efficiency of 24%, an average output power of 19.4 dBm and an error vector magnitude of −30 dB.
  • Keywords
    "Power generation","CMOS integrated circuits","Voltage control","Modulation","Gain","Trajectory","Standards"
  • Publisher
    ieee
  • Conference_Titel
    Radio Frequency Integrated Circuits Symposium (RFIC), 2015 IEEE
  • Type

    conf

  • DOI
    10.1109/RFIC.2015.7337721
  • Filename
    7337721
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3697892