Title :
Improvement in the efficiency of class-E power amplifier for RF
Author :
Dhawyani, M. ; Mahrooqi, Q. ; Rahbi, F. ; Kalbani, A. ; Touati, F. ; Nadir, Z.
Author_Institution :
Dept. of ECE, Sultan Qaboos Univ., Muscat
Abstract :
The cellular mobile communication industry has recently been one of the fastest growing industries. This paper presents efficient techniques in the design of switching mode class E power amplifiers by reducing switching losses. A typical class E circuit has been design-optimized for 900 and 1800 MHz. Matching networks are used to reduce power consumption. The simulated results were analyzed in terms of output power, dissipated power in the transistor, and efficiency. Efficiencies higher than 67% could be achieved.
Keywords :
UHF amplifiers; cellular radio; power amplifiers; switching circuits; cellular mobile communication industry; frequency 1800 MHz; frequency 900 MHz; matching network; switching mode class E power amplifier; Analytical models; Circuits; Communication industry; Communication switching; Energy consumption; Mobile communication; Power amplifiers; Radio frequency; Radiofrequency amplifiers; Switching loss; Class E power amplifiers; high efficiency; matching network; switching losses; switching mode amplifier;
Conference_Titel :
Systems, Signals and Devices, 2008. IEEE SSD 2008. 5th International Multi-Conference on
Conference_Location :
Amman
Print_ISBN :
978-1-4244-2205-0
Electronic_ISBN :
978-1-4244-2206-7
DOI :
10.1109/SSD.2008.4632864
