An Efficient S-Band Doherty Power Amplifier Using Multi-state Integrated Matching

Xiong, Zhenting; Wang, Jingying; Chen, Jingxiong; Wang, Hong

doi:10.1007/s00034-022-02173-6

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2023

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“…A combined network is adopted to integrate drain-source capacitor Cds into output matching, thus achieving high back-off drain efficiency [4]. Multi-state integrated output matching is adopted to enhance the back-off efficiency of the power amplifier [5]. A CM-DPA harmonic control method is proposed to improve efficiency [6].…”

Section: Introductionmentioning

confidence: 99%

Design of High-efficiency Continuous Class F Doherty Power Amplifier

Wang,

Li,

et al. 2023

J. Phys.: Conf. Ser.

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The high efficiency of the saturation state and rollback state is an important part of the front end of modern wireless communication systems. Improving the efficiency of RF power amplifiers is of great significance for energy saving and amplifier performance. Based on the traditional Doherty power amplifier, the harmonic suppression network is introduced before the fundamental frequency matching, so that the second harmonic impedance and third harmonic impedance can achieve continuous class F impedance matching conditions, and then the saturation efficiency and regression efficiency can be improved without affecting the fundamental wave matching. The results of the simulation show that the saturation efficiency of the Doherty amplifier reaches 73.94%~77.22%. The drain efficiency of back-off 6 dB reaches 61.80%~62.92%. The average saturation drain efficiency is 75.58%, and the average back-off 6 dB drain efficiency is 62.36%.

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Section: Introductionmentioning

confidence: 99%