Design of a High-Efficiency and High-Power Inverted Doherty Amplifier

  title={Design of a High-Efficiency and High-Power Inverted Doherty Amplifier},
  author={Gunhyun Ahn and Min-su Kim and Hyun-Chul Park and Sung-Chan Jung and Ju-Ho Van and Hanjin Cho and Sung-wook Kwon and Jong-hyuk Jeong and Kyung-Hoon Lim and Jae Y. Kim and S. C. Song and Cheon-Seok Park and Youngoo Yang},
  journal={IEEE Transactions on Microwave Theory and Techniques},
In this paper, we present a design method for a compact inverted Doherty power amplifier (IDPA), which has high-efficiency and high-power characteristics. An optimum load matching network and an additional offset line, after the matching network of the carrier amplifier, dynamically modulate the load impedance according to the input power drive, while the conventional Doherty power amplifier uses a quarter-wave line to do it. The operational principles and design guide are provided. For… CONTINUE READING
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