Title :
A power re-use technique for improved efficiency of pulsed oscillating amplifiers
Author :
Jeon, Young-Sang ; Yang, Hoe-Sung ; Nam, Sangwook
Author_Institution :
Korean Intellectual Property Office, Daejeon
Abstract :
This letter presents a power re-use technique for pulsed oscillating amplifiers. By rectifying the upconverted switching harmonics of the pulsed oscillating output, some portions of wasted power can be returned to the power supply. The efficiency of the amplifier can be enhanced without degradation of the linearity. The measured results show that the overall efficiency of the amplifier with power re-use is improved up to 22% compared to the pulsed oscillating amplifier without the power re-use at the PCS band
Keywords :
circuit oscillations; pulse amplifiers; rectifying circuits; improved efficiency; power reuse technique; pulsed oscillating amplifiers; rectification; upconverted switching harmonics; Injection-locked oscillators; Power amplifiers; Power harmonic filters; Power system harmonics; Pulse amplifiers; Pulse width modulation; Pulsed power supplies; Radio frequency; Radiofrequency amplifiers; Space vector pulse width modulation; Injection-locked oscillator; linear power amplifier; power re-use; pulsed oscillating amplifier;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2006.882381
