• DocumentCode
    3438710
  • Title

    A type of TWTA predistortion linearizer for space telecommunication applications

  • Author

    Hu, Xin ; Wang, Gang ; Luo, Jirun ; Wang, ZiCheng

  • Author_Institution
    Key Lab. of High Power Microwave, Chinese Acad. of Sci., Beijing, China
  • fYear
    2010
  • fDate
    25-27 June 2010
  • Firstpage
    77
  • Lastpage
    79
  • Abstract
    This paper presents a predistortion linearizer for space telecommunication applications with simple circuit structure. The linearizer reported here, which is capable of providing a good control for the amount of gain expansion over input power dynamic range, can compensate the TWTA saturation response better than that of a conventional linearizer. The improvement of about 14.5 dB C/I3 at −3dB Output-Power-Backoff(OPBO) in the frequency range of 8.38∼8.58GHz can be reached by the linearizer.
  • Keywords
    Circuits; Delay; Dynamic range; FETs; Linearity; Power amplifiers; Predistortion; Satellites; Schottky diodes; Telecommunication control; Traveling Wave Tube Amplifiers; nonlinear distortion; predistortion linearizer; space telecommunication;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Wireless Communications, Networking and Information Security (WCNIS), 2010 IEEE International Conference on
  • Conference_Location
    Beijing, China
  • Print_ISBN
    978-1-4244-5850-9
  • Type

    conf

  • DOI
    10.1109/WCINS.2010.5541892
  • Filename
    5541892
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3438710