Articles by Yingjie Xu, Jingqi Wang and Xiaowei Zhu, Southeast University, Nanjing, China

Analytical Design of an Inverse Class F Power Amplifier for Linear Amplification

In this article, a 2.5 to 2.6 GHz highly efficient inverse Class F power amplifier (PA), based on Cree’s CGH40010 GaN HEMT, is presented for linear amplification. The second and third harmonic load impedances are found by harmonic load pull simulation,...
Recently, in order to achieve highly efficient amplification, switch mode power amplifiers (SMPA) with theoretical 100 percent efficiency have been introduced. However, in practice, the efficiency of SMPA cannot achieve as high as 100 percent because of the parasitic parameters of the transistor, the losses of matching networks, etc....
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