• DocumentCode
    439300
  • Title

    A programmable analog polynomial predistortion circuit for linearising radio transmitters

  • Author

    Rahkonen, Timo ; Kankaala, Tapio ; Neitola, Marko

  • Author_Institution
    University of Oulu, Oulu, Finland
  • fYear
    1998
  • fDate
    22-24 Sept. 1998
  • Firstpage
    276
  • Lastpage
    279
  • Abstract
    An analog 5th order polynomial predistortion circuit with programmable coefficients has been integrated in a 0.8 µm BiCMOS process. The distorter circuit consists of nine bipolar Gilbert cell mixers, and it is capable for linearising power amplifier at baseband or IF. A test setup consisting of two distorter ICs, digital programming interface and summing amplifiers has been built and tested at an IF frequency of 20.4 MHz, and 20..25 dB reduction in third order intermodulation results is achieved.
  • Keywords
    Baseband; BiCMOS integrated circuits; Circuit testing; Intermodulation distortion; Linear programming; Polynomials; Power amplifiers; Predistortion; Radio transmitters; Radiofrequency amplifiers;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Solid-State Circuits Conference, 1998. ESSCIRC '98. Proceedings of the 24th European
  • Type

    conf

  • DOI
    10.1109/ESSCIR.1998.186262
  • Filename
    1471019
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=439300