Title :
A fast modulator for dynamic supply linear RF power amplifier
Author :
Schlumpf, Nicolas ; Declercq, Michel ; Dehollain, Catherine
Author_Institution :
Electron. Labs., Swiss Fed. Inst. of Technol., Laussanne, Switzerland
Abstract :
A fast modulator for dynamic supply linear RF amplifier has been integrated in a 0.35/spl mu/m CMOS technology. The use of this modulator with an external linear power amplifier (PA) allows to maintain its efficiency at a higher level than it would with the same PA supplied at constant voltage. The modulator is designed to track rapid envelope variations at high efficiency without compromising the RF PA linearity.
Keywords :
CMOS analogue integrated circuits; modulators; power amplifiers; radiofrequency amplifiers; 0.35/spl mu/m CMOS technology; dynamic supply; fast modulator; linear Power Amplifier; linear RF power amplifier; CMOS technology; Laboratories; Linearity; Power amplifiers; Power measurement; Power supplies; Radio frequency; Radiofrequency amplifiers; Virtual colonoscopy; Voltage;
Conference_Titel :
Solid-State Circuits Conference, 2003. ESSCIRC '03. Proceedings of the 29th European
Conference_Location :
Estoril, Portugal
Print_ISBN :
0-7803-7995-0
DOI :
10.1109/ESSCIRC.2003.1257164
