Title :
Efficient X-band switched-mode microwave power amplifiers
Author :
Popovic, Z. ; Pajic, S. ; Wang, N. ; Bell, P.
Author_Institution :
Dept. of Electr. Eng., Colorado Univ., Boulder, CO, USA
Abstract :
The problem addressed in this paper is reduction of heat dissipation and improvement of dc power usage by increasing the power added efficiency (PAE) and drain efficiency (/spl eta/) of X-band power amplifiers (PAs) to above 60% and 70%, respectively. Adaptive PAs with dynamic biasing and impedance tuning are also discussed.
Keywords :
circuit tuning; microwave power amplifiers; switched networks; 60 percent; 70 percent; X-band power amplifiers; adaptive PA dynamic biasing; dc power usage improvement; drain efficiency; heat dissipation reduction; impedance tuning; power added efficiency; switched-mode microwave power amplifiers; Capacitance; Circuits; Frequency; Impedance; Microwave amplifiers; Microwave transistors; Power amplifiers; Power generation; Switches; Voltage;
Conference_Titel :
Gallium Arsenide Integrated Circuit (GaAs IC) Symposium, 2003. 25th Annual Technical Digest 2003. IEEE
Conference_Location :
San Diego, CA, USA
Print_ISBN :
0-7803-7833-4
DOI :
10.1109/GAAS.2003.1252378
