• DocumentCode
    1700553
  • Title

    Independently controllable 3rd- and 5th-order analog predistortion linearizer for RF power amplifier in GSM

  • Author

    Lee, Seung-Yup ; Lee, Yong-Sub ; Hong, Seung-Ho ; Choi, Hyun-Sik ; Jeong, Yoon-Ha

  • Author_Institution
    Dept. of Electron. & Electr. Eng., Pohang Univ. of Sci. & Technol., Kyungbuk, South Korea
  • fYear
    2004
  • Firstpage
    146
  • Lastpage
    149
  • Abstract
    An individually controllable 3rd-order intermodulation (IM3) and 5th-order intermodulation (IM5) predistortion linearizer for RF power amplifiers of band-type global system of mobile (GSM) repeaters is proposed. In order to effectively improve the linearity of RF power amplifiers, the IM3 and the IM5 powers are canceled by the predistortion circuit, which independently controls amplitude and phase of the IM3 and the IM5. The fabricated predistorter linearizes the power amplifier at 940 MHz. The IMD3 and the IMD5 suppressions of 30 dB and 26 dB, respectively, are achieved with an average power of 33 dBm for the GSM repeaters.
  • Keywords
    UHF power amplifiers; cellular radio; intermodulation distortion; radio repeaters; 940 MHz; GSM; RF power amplifier; analog predistortion linearizer; band-type global system; high linearity; individually controllable linearizer; intermodulation predistortion linearizer; mobile repeaters; Circuits; Control systems; Frequency conversion; GSM; Linearity; Power amplifiers; Predistortion; Radio frequency; Radiofrequency amplifiers; Repeaters;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Advanced System Integrated Circuits 2004. Proceedings of 2004 IEEE Asia-Pacific Conference on
  • Print_ISBN
    0-7803-8637-X
  • Type

    conf

  • DOI
    10.1109/APASIC.2004.1349432
  • Filename
    1349432
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1700553