Broadband Doherty Power Amplifier via Real Frequency Technique

@article{Sun2012BroadbandDP,
  title={Broadband Doherty Power Amplifier via Real Frequency Technique},
  author={Guolin Sun and Rolf H. Jansen},
  journal={IEEE Transactions on Microwave Theory and Techniques},
  year={2012},
  volume={60},
  pages={99-111}
}
A comprehensive method of designing a broadband Doherty power amplifier is presented in this paper. The essential limitations of bandwidth extension of a Doherty power amplifier are discussed based on the proposed structure of the Doherty power amplifier, which also takes the output matching networks of both sub-amplifiers into account. The broadband matching is realized by applying the simplified real frequency technique with the desired frequency-dependent optimum impedances. GaN transistors… CONTINUE READING
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