A highly efficient and broadband 10 W GaN HEMT power amplifier (PA) is presented, which employs the hybrid PA mode, transferring between continuous Class-F, continuous Class-B/J and continuous inverse Class-F. A GaN PA is designed and realized based on this mode-transferring operation using low-pass filter output matching network. The maximum theoretical efficiency of this hybrid continuous modes PA is more than 78.5%. Specifically, the operating bandwidth is determined by the low pass filter output matching network and the theoretical bandwidth can achieved multi-octave. The proposed design strategy is experimentally verified by a 0.6–2.4 GHz PA design with 79.8% maximum drain efficiency and 10 W output power. The footprint of the fabricated PA is 75 mm × 40 mm.
CITATION STYLE
Ni, C., Zhang, Z., Kong, M., Chen, M., Wang, H., & Wu, X. (2017). A 0.6–2.4 GHz broadband GaN HEMT power amplifier with 79.8% maximum drain efficiency. In Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST (Vol. 202, pp. 214–222). Springer Verlag. https://doi.org/10.1007/978-3-319-60753-5_23
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