A Mixed Topology for Broadband High-Efficiency Doherty Power Amplifier

In this paper, a mixed topology for high efficiency, broadband Doherty power amplifier (DPA) is proposed. The transistor gate biases are set to deep Class-AB for the carrier device and deep Class-C for the peaking device, which enable the DPA to achieve its high efficiency. However, this biasing sch...

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Veröffentlicht in:	IEEE transactions on microwave theory and techniques 2019-03, Vol.67 (3), p.1050-1064
Hauptverfasser:	Zhou, Xin Yu, Chan, Wing Shing, Zheng, Shao Yong, Feng, Wenjie, Liu, Hao-Yu, Cheng, Kwok-Keung M., Ho, Derek
Format:	Artikel
Sprache:	eng
Schlagworte:	Bandwidth Bandwidths Broadband Broadband communication Doherty power amplifiers (DPAs) Efficiency efficiency enhancement Frequency modulation Gallium nitrides Harmonic analysis High electron mobility transistors Impedance phase compensation network postmatching Power amplifiers Power efficiency Reduction Resonant frequencies Semiconductor devices Topology
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