Title :
High-efficiency concurrent dual-band class-F and inverse class-F power amplifier
Author :
Ding, Yi ; Guo, Yong Xin ; Liu, F.L.
Author_Institution :
Dept. of Electron. Eng. & Inf. Sci., Univ. of Sci. & Technol. of China, Hefei, China
Abstract :
A high-efficiency concurrent dual-mode dual-band power amplifier is presented. It simultaneously operates at class-F mode for one band and at inverse class-F mode for the other band. With this mode assignment method, the conflict in harmonic impedance control for concurrent dual-band applications is avoided. Experimental results show a high performance of more than 80% peaking power added efficiency with 40.6 and 41.8 dBm output power in the sampled bands of 0.8 and 1.25 GHz, respectively.
Keywords :
electric impedance; power amplifiers; concurrent dual-band application; dual-band class-F power amplifier; harmonic impedance control; high-efficiency concurrent dual-mode dual-band power amplifier; inverse class-F power amplifier; mode assignment; peaking power;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2011.1662
