DocumentCode
2167946
Title
Effect of Bias Condition and Input Harmonic Termination on High Efficiency Inverse Class-F Amplifiers
Author
Goto, Seiki ; Kunii, Tetsuo ; Ohta, Akira ; Inoue, Akira ; Hosokawa, Yoshihiro ; Hattori, Ryo ; Mitsui, Yasuo
Author_Institution
High Frequency and Optical Semiconductor Division, Mitsubishi Electric Corporation, 4-1 Mizuhara, Itami City, Hyogo Pref. 664-8641, Japan. gotou@lsi.melco.co.jp
fYear
2001
fDate
24-26 Sept. 2001
Firstpage
1
Lastpage
4
Abstract
The optimization of the operating bias condition and input harmonic termination is investigated for the practical circuit design of high efficiency inverse class-F amplifiers. It is found that inverse class-F amplifiers exhibit a high efficiency at the quiescent current of larger than 10% Idss, which cannot be achieved by class-F amplifiers. It is also revealed that the efficiency of inverse class-F amplifiers can be effectively improved by the open or high impedance of the input 2nd harmonic termination. These results have been explained by the behavior of the amplitude and phase relationship between the input and output harmonics.
Keywords
Cities and towns; Current measurement; Degradation; Gain; HEMTs; Impedance; Optical amplifiers; Power measurement; Semiconductor optical amplifiers; Voltage;
fLanguage
English
Publisher
ieee
Conference_Titel
Microwave Conference, 2001. 31st European
Conference_Location
London, England
Type
conf
DOI
10.1109/EUMA.2001.339197
Filename
4140265
Link To Document