Title :
Comments on “High-Efficiency Class E/F Lumped and Transmission-Line Power Amplifiers”
Author :
Qian-Fu Cheng ; Shou-Kui Zhu ; Hai-Peng Fu
Author_Institution :
Sch. of Electron. Inf. Eng., Tianjin Univ., Tianjin, China
Abstract :
In the above paper, the author presents the theoretical analysis of a single-ended Class E/Fn mode with explicit derivation of the idealized optimum voltage and current waveforms and load-network parameters with their verification by time- and frequency-domain simulations for a particular case of Class E/F3 mode with a 50% duty cycle. However, some errors have been found which may affect the readers understanding, and they will be clarified in this letter.
Keywords :
frequency-domain analysis; power amplifiers; time-domain analysis; class E-F lumped power amplifiers; current waveforms; frequency-domain simulations; load-network parameters; time-domain simulations; transmission-line power amplifiers; voltage waveforms; Circuit synthesis; Harmonic analysis; Power amplifiers; Resonant frequency; Time-domain analysis;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
DOI :
10.1109/TMTT.2015.2447539
