Title :
Passivity theory applied to the design of power-amplifier linearizers
Author :
Zozaya, Alfonso J. ; Bertran, Eduard
Author_Institution :
Signal Theor. & Commun. Dept., Univ. Politecnica de Catalunya, Barcelona, Spain
fDate :
7/1/2004 12:00:00 AM
Abstract :
The application of the passivity theory to the radio-frequency (RF) power-amplifier (PA) linearization problem leads to a new structure that is capable to being built completely with analog circuitry. In this paper, the basis of the passivity (or hyperstability) theory are revised and applied to the linearization of an RF power amplifier, proposing the resulting linearizer structure and experimenting with it from simulations based on the RF PA experimentally validated by Saleh and from a real model of a Class A PA operating at 28 GHz.
Keywords :
analogue circuits; linearisation techniques; microwave power amplifiers; passive networks; 28 GHz; analog circuitry; circuit design; passivity theory; radiofrequency power amplifier linearization; Adaptive control; Bandwidth; Circuits; Feedback; Modulation; Power amplifiers; Predistortion; Programmable control; Radio frequency; Radiofrequency amplifiers; Hyperstable and passive systems; PAs; linearization; power amplifiers;
Journal_Title :
Vehicular Technology, IEEE Transactions on
DOI :
10.1109/TVT.2004.830960
