Title :
A 700-MHz 1-W fully differential CMOS class-E power amplifier
Author :
Mertens, Koen L R ; Steyaert, Michiel S J
Author_Institution :
ESAT, Katholieke Univ., Leuven, Heverlee, Belgium
fDate :
2/1/2002 12:00:00 AM
Abstract :
A 700-MHz fully differential class-E CMOS power amplifier for wireless applications has been built toward maximum efficiency. The prototype can deliver 1 W of output power in a 50-Ω output impedance. The maximum power-added efficiency (PAE) is measured to be 62%. The obtained efficiency and output power is compared with the class-E amplifiers theory
Keywords :
CMOS analogue integrated circuits; Q-factor; UHF integrated circuits; UHF power amplifiers; differential amplifiers; power integrated circuits; transceivers; 1 W; 50 ohm; 62 percent; 700 MHz; CMOS power amplifier; Dirac impulse losses; GSMK spectrum; baluns; drain efficiency; full transceiver; fully differential class-E amplifier; maximum power-added efficiency; quality factor; single equivalent transistor; upward LC impedance transformation network; wireless applications; Differential amplifiers; Frequency; Impedance; Power amplifiers; Power generation; Power supplies; Radiofrequency amplifiers; Switches; Transceivers; Voltage;
Journal_Title :
Solid-State Circuits, IEEE Journal of
