Title :
Concurrent dual-band high efficiency class-E power amplifier
Author :
Norouzian, F. ; Gardner, Peter
Author_Institution :
Sch. of Electron., Electr. & Comput. Eng., Univ. of Birmingham, Birmingham, UK
Abstract :
In this paper, a concurrent dual-band class-E power amplifier is proposed. A distributed matching network is designed without any switch to achieve dual-mode operation. The power amplifier works in the 777-787 MHz and 1710-1785 MHz bands for LTE system. The measured results show 22 and 27 dBm output power at first and second band, respectively. This power amplifier obtains efficiency of 60% in lower bandwidth and 84.5 % in higher bandwidth. A novel matching network is also presented to switch between two different optimum operations for class-E design to improve the efficiency in the lower band.
Keywords :
Long Term Evolution; UHF power amplifiers; LTE system; UHF amplifiers; concurrent dual-band class-E power amplifier; distributed matching network; frequency 1710 MHz to 1785 MHz; frequency 777 MHz to 787 MHz; high efficiency; Capacitance; Dual band; Harmonic analysis; Power generation; Power transmission lines; Switches; Transistors; class-E; dual-band; high efficiency; power amplifier;
Conference_Titel :
Microwave Conference (EuMC), 2013 European
Conference_Location :
Nuremberg
