• DocumentCode
    3862328
  • Title

    Class-E Power Amplifier in a Polar EDGE Transmitter

  • Author

    Nestor D. Lopez;Xufeng Jiang;Dragan Maksimovic;Zoya Popovic

  • Author_Institution
    Department of Electrical and Computer Engineering, University of Colorado, Boulder, Colorado 80309, USA
  • fYear
    2006
  • fDate
    6/6/2016 12:00:00 AM
  • Firstpage
    785
  • Lastpage
    788
  • Abstract
    This paper presents the design and characterization of a 880-MHz class-E power amplifier (PA) designed to operate in a polar transmitter for EDGE signals. The amplifier is intended to be supplied from a 3.6 V battery using a linear amplifier as an envelope tracker, which limits the maximum drain voltage to 3.3 V. With a +7.6 dBm input signal the maximum output power (VDD = 3.3V) is +22.4 dBm with 14.9 dB of gain, a drain efficiency of 71.6% and PAE of 69%. An output power dynamic range of 15.4 dB is achieved when the voltage is varied from 0.5-3.3 V. Taking into account the statistics of an EDGE signal, the mean drain efficiency and PAE are 75.7% and 64.4%, with a mean output power of +18.26 dBm
  • Keywords
    "Power amplifiers","Transmitters","Voltage","RF signals","Radiofrequency amplifiers","Switches","Power generation","Radio frequency","Signal processing","Signal restoration"
  • Publisher
    ieee
  • Conference_Titel
    Microwave Symposium Digest, 2006. IEEE MTT-S International
  • ISSN
    0149-645X
  • Print_ISBN
    0-7803-9541-7
  • Type

    conf

  • DOI
    10.1109/MWSYM.2006.249771
  • Filename
    4015024
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3862328