• DocumentCode
    3714829
  • Title

    Digital OFDM transmitter based on multi-bit delta sigma modulator

  • Author

    Zaijun Hua; Xiangning Fan; Li Tang

  • Author_Institution
    Institute of RF-&OE-ICs, School of Information Science and Engineering, Southeast University, Nanjing, 210096, China
  • fYear
    2015
  • Firstpage
    1
  • Lastpage
    4
  • Abstract
    An orthogonal frequency division multiplexing transmitter based on multi-bit delta sigma modulator with switch mode power amplifiers is presented. Multi-bit up-conversion mixer and power amplifiers are revealed. With a 3-bit delta sigma modulator, an IEEE 802.11a based transmitter is simulated. Results show that the error vector magnitude of this transmitter achieves -20.74dB for 64-QAM. With up to +10% gain imbalance for the most significant bit, the transmitter´s accuracy degrades 1.5dB.
  • Keywords
    "OFDM","Transmitters","Modulation","Mixers","Presses","Delta-sigma modulation"
  • Publisher
    ieee
  • Conference_Titel
    Microwaves, Communications, Antennas and Electronic Systems (COMCAS), 2015 IEEE International Conference on
  • Type

    conf

  • DOI
    10.1109/COMCAS.2015.7360437
  • Filename
    7360437
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3714829