Novel Design Space of Broadband High-Efficiency Parallel-Circuit Class-EF Power Amplifiers

Chang Liu, Hao Zhang, Wenhua Chen, Fadhel M. Ghannouchi

科研成果: 期刊稿件文章同行评审

23 引用 (Scopus)

摘要

This article proposes a broadband high-efficiency parallel-circuit (PC) class-EF power amplifier (PA) along with a quarter-wavelength stub for the first time. By adding a reactive element X , the design space is expanded so that the impedance terminations of the fundamental and harmonics are no longer fixed points. Based on the broadband capability of the proposed structure, using a GaN HEMT transistor, a proof-of-concept circuit implemented with the Chebyshev impedance transformation network is designed and fabricated. Experimental results demonstrate a high-efficiency broadband PA operating from 2.6-3.9 GHz, with the average efficiency of 71.5%, the measured output power ( Pout ) of 38.8-40.9 dBm and the power gain of 8.5-10.6 dB.

源语言英语
页(从-至)3465-3475
页数11
期刊IEEE Transactions on Circuits and Systems I: Regular Papers
69
9
DOI
出版状态已出版 - 1 9月 2022

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