Enhanced Analysis and Design Method of Concurrent Dual-Band Power Amplifiers With Intermodulation Impedance Tuning

@article{Chen2013EnhancedAA,
  title={Enhanced Analysis and Design Method of Concurrent Dual-Band Power Amplifiers With Intermodulation Impedance Tuning},
  author={Xiaofan Chen and Wenhua Chen and Fadhel M. Ghannouchi and Zhenghe Feng and Yuanan Liu},
  journal={IEEE Transactions on Microwave Theory and Techniques},
  year={2013},
  volume={61},
  pages={4544-4558}
}
The behavior of power amplifiers (PAs) driven by concurrent dual-band signals is analyzed theoretically in this paper. According to the analysis, the impedance matching at intermodulation (IM) frequency is very important for PAs working in concurrent mode. Based on the concept of IM impedance tuning, a family of new operation modes can be introduced, including concurrent Class-A, Class-AB, Class-B, and Class-C. The theoretical performance of these modes are derived and the overdrive effects of… CONTINUE READING
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