Title :
Automatic phase alignment for high bandwidth Cartesian feedback power amplifiers
Author :
Dawson, Joel L. ; Lee, Thomas H.
Author_Institution :
Center for Integrated Syst., Stanford Univ., CA, USA
Abstract :
We demonstrate a truly continuous regulator of oscillator phase alignment suitable for high bandwidth Cartesian feedback power amplifiers. A new approach to the problem is introduced, which yields a simple nonlinear dynamical controller. Our prototype achieves accurate regulation (3.8 degrees) at the highest baseband bandwidth reported
Keywords :
feedback amplifiers; nonlinear control systems; phase control; phase shifters; power amplifiers; radiofrequency amplifiers; wideband amplifiers; Cartesian feedback power; automatic phase alignment; high bandwidth power amplifiers; nonlinear dynamical controller; oscillator phase alignment; regulation; Bandwidth; Baseband; Demodulation; Feedback loop; Frequency; High power amplifiers; Power amplifiers; Prototypes; Regulators; Temperature;
Conference_Titel :
Radio and Wireless Conference, 2000. RAWCON 2000. 2000 IEEE
Conference_Location :
Denver, CO
Print_ISBN :
0-7803-6267-5
DOI :
10.1109/RAWCON.2000.881858
