Improving Digital Predistortion Mismatch Sensitivity Using Tunable Matching Networks

@article{SnchezPerez2011ImprovingDP,
  title={Improving Digital Predistortion Mismatch Sensitivity Using Tunable Matching Networks},
  author={C{\'e}sar S{\'a}nchez-Perez and Jesus de Mingo and Paloma Garcia Ducar and Pedro Luis Carro and Antonio Valdovinos},
  journal={2011 IEEE 73rd Vehicular Technology Conference (VTC Spring)},
  year={2011},
  pages={1-5}
}
Digital predistortion (DPD) is a well-known method to reduce non-linear distortion in RF power amplifiers (PAs). In this paper, we present a study on the sensitivity of this linearization technique under large mismatch conditions, and how this sensitivity can be improved using a tunable matching network (TMN). Under different load conditions, PA behavior may change significantly making more complicated the DPD solution convergence, reducing its performance or even disabling its correct… CONTINUE READING

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