Design of broadband class E power amplifier in continuous operation modes

@article{Gao2013DesignOB,
  title={Design of broadband class E power amplifier in continuous operation modes},
  author={Zhongqiang Gao and Chang Liu and Guiliang Guo and Hua Chen and Chao Luo and Han Jingyu and Li-Jun Zhang and Yuepeng Yan},
  journal={Electronics Letters},
  year={2013},
  volume={49},
  pages={1643-1645}
}
Theoretically, constant output power and high DC-to-RF efficiency cannot be simultaneously achieved by a broadband Class E power amplifier (PA) even if the load network could provide the accurate impedance desired at each frequency point. Such a problem is solved with the presented concept of continuous Class E modes. New demands on the load and corresponding load network topology are discussed to provide a theoretical basis. To verify the feasibility, a prototype PA in TSMC 0.18 μm CMOS… 
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