• DocumentCode
    1304040
  • Title

    2D augmented Hammerstein model for concurrent dual-band power amplifiers

  • Author

    Liu, Y.-J. ; Chen, Weijie ; Zhou, B. ; Zhou, J. ; Ghannouchi, Fadhel M.

  • Author_Institution
    Inst. of Electron. Eng., China Acad. of Eng. Phys., Mianyang, China
  • Volume
    48
  • Issue
    19
  • fYear
    2012
  • Firstpage
    1214
  • Lastpage
    1216
  • Abstract
    A two-dimensional (2D) augmented Hammerstein (2D-AH) model is proposed for the first time to achieve high modelling accuracy for concurrent dual-band power amplifiers (PAs). By considering the nonlinear memory effect, the 2D-AH model is an augmented version of the conventional Hammerstein structure and can provide comparable performance to the prior 2D-DPD model. But it outperforms the 2D-DPD model in terms of complexity. Measurements were carried out for a dual-band Doherty PA, both for forward modelling and for DPD application. The results prove the superiority of the 2D-AH model.
  • Keywords
    power amplifiers; 2D-AH model; 2D-DPD model; Doherty PA; concurrent dual-band power amplifiers; digital predistortion model; forward modelling; nonlinear memory effect; two-dimensional augmented Hammerstein model;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el.2012.2252
  • Filename
    6317245
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1304040