Transformer-Based Doherty Power Amplifiers for mm-Wave Applications in 40-nm CMOS

  title={Transformer-Based Doherty Power Amplifiers for mm-Wave Applications in 40-nm CMOS},
  author={Ercan Kaymaksut and Dixian Zhao and Patrick Reynaert},
  journal={IEEE Transactions on Microwave Theory and Techniques},
This paper presents a power amplifier (PA) topology to improve the back-off efficiency and the linearity of millimeter-wave (mm-wave) PAs without area overhead. In this paper, an asymmetrical series power combiner with LC tuning circuits is proposed to mimic the Doherty operation. Due to high back-off efficiency and high linearity behavior, the proposed Doherty topology well suits for E-band communication applications. Two transformer-based E-band PAs are designed and measured to demonstrate… CONTINUE READING
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