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  • 1.
    Johansson, Ted
    et al.
    Linköping University, Department of Electrical Engineering, Integrated Circuits and Systems. Linköping University, Faculty of Science & Engineering.
    Morales Chacon, Oscar Andres
    Linköping University, Department of Electrical Engineering, Integrated Circuits and Systems. Linköping University, Faculty of Science & Engineering.
    Flink, Thomas
    Catena Wireless Electronics AB, Kista, Sweden.
    Digital predistortion with bandwidth limitations for a 28 nm WLAN 802.11ac transmitter2018Conference paper (Other academic)
  • 2.
    Morales Chacon, Oscar Andres
    et al.
    Linköping University, Department of Electrical Engineering, Integrated Circuits and Systems. Linköping University, Faculty of Science & Engineering.
    Johansson, Ted
    Linköping University, Department of Electrical Engineering, Integrated Circuits and Systems. Linköping University, Faculty of Science & Engineering.
    Flink, Thomas
    Catena Wireless Elect AB, Sweden.
    The effect of DPD bandwidth limitation on EVM for a 28 nm WLAN 802.11ac transmitter2017In: 2017 IEEE NORDIC CIRCUITS AND SYSTEMS CONFERENCE (NORCAS): NORCHIP AND INTERNATIONAL SYMPOSIUM OF SYSTEM-ON-CHIP (SOC), IEEE , 2017Conference paper (Refereed)
    Abstract [en]

    Digital predistortion (DPD) performance for an IEEE 802.11ac WLAN transmitter in 28 nm CMOS, using 20 and 80 MHz bandwidth with 256QAM modulation, is analyzed under different bandwidth limitations. Due to band-limited conditions in the transmitter chain, the DPD linearization performance may be reduced. For a minimum transmitter error vector magnitude (EVM) requirement of -32 dB (2.5%) for 256QAM modulation, a reduction in the maximum linear output power of 1.6 dB due to bandwidth limitations in the transmitter chain is estimated using simulations and measurement results.

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