{"title":"Low-Voltage Continuous Class-F Wideband Power Amplifier","authors":"Yu-Wen Duan;Jin Xu;Jia-Hao Su;Ming Zhao;Fang Liu;Guo-Qing Zhou","doi":"10.1109/LMWT.2024.3392741","DOIUrl":null,"url":null,"abstract":"A high-efficiency continuous Class-F broadband power amplifier (PA) using a pHEMT with a low supply voltage of 3 V is proposed. The proposed PA consists of a harmonic control network, which is used to reduce the effect of fundamental frequency reflections on the dc power supply, improve efficiency, and shape the voltage and current waveforms, and a low-pass filter (LPF) with a wide stopband, which is used to eliminate higher order harmonics. To validate the proposed structure, a continuous Class-F broadband PA is simulated, fabricated, and measured. The measured results show that the PA has a gain of 10.7 dB and a maximum drain efficiency of 64% in the frequency range of 1.1–1.7 GHz. The measured results demonstrate the feasibility of the proposed design method for continuous Class-F broadband PA.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2024-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE microwave and wireless technology letters","FirstCategoryId":"1085","ListUrlMain":"https://ieeexplore.ieee.org/document/10510360/","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"0","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
A high-efficiency continuous Class-F broadband power amplifier (PA) using a pHEMT with a low supply voltage of 3 V is proposed. The proposed PA consists of a harmonic control network, which is used to reduce the effect of fundamental frequency reflections on the dc power supply, improve efficiency, and shape the voltage and current waveforms, and a low-pass filter (LPF) with a wide stopband, which is used to eliminate higher order harmonics. To validate the proposed structure, a continuous Class-F broadband PA is simulated, fabricated, and measured. The measured results show that the PA has a gain of 10.7 dB and a maximum drain efficiency of 64% in the frequency range of 1.1–1.7 GHz. The measured results demonstrate the feasibility of the proposed design method for continuous Class-F broadband PA.