A Power Amplifier With Harmonic Precontrol

IF 1 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Microwave and Optical Technology Letters Pub Date : 2025-03-20 DOI:10.1002/mop.70148

Rongjun Liu, Kaijun Song, Guannan Li, Xinyi Yang, Yong Fan

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引用次数: 0

Abstract

In this paper, a method of harmonic predistortion network is proposed, and the concept of dynamic harmonic control is proposed, that is, in the design of power amplifiers, by integrating part of the harmonic control circuit into the package, adjusting and realizing harmonic pre-control, and using the phase shift of the parasitic network of the package, the second and third harmonic load impedances can be effectively controlled to achieve dynamic matching of harmonics of different frequencies, and the output topology of the inverse Class F power amplifier (PA) at 2.45 GHz frequency is realized by this method. To verify the proposed method and concept, an inverse class F PA was designed, and an inverse class F PA was fabricated using die GaN HEMT. The simulation results achieved the expected waveform shaping and drain impedance, and the measurements showed that the fabricated inverse Class F PA could deliver 47.8 dBm saturation output power and 76% drain efficiency for a wide range of communication systems.

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来源期刊

Microwave and Optical Technology Letters 工程技术-工程：电子与电气

CiteScore

3.40

自引率

20.00%

发文量

371

审稿时长

4.3 months

期刊介绍： Microwave and Optical Technology Letters provides quick publication (3 to 6 month turnaround) of the most recent findings and achievements in high frequency technology, from RF to optical spectrum. The journal publishes original short papers and letters on theoretical, applied, and system results in the following areas. - RF, Microwave, and Millimeter Waves - Antennas and Propagation - Submillimeter-Wave and Infrared Technology - Optical Engineering All papers are subject to peer review before publication