Paper Info
Title
An adaptive class-E power amplifier with improvement in efficiency, reliability and process variation tolerance
Abstract
Integrated power amplifiers in RF communication systems suffer from efficiency reduction with power back-off, performance degradation due to process variation and reliability issues due to high signal levels. Design of a dynamically adaptive class-E switching power amplifier with duty cycle modulation is proposed in this paper. It uses an LC tuning circuit with a variable capacitor that improves efficiency, reliability and process variation tolerance compared to traditional class-E power amplifiers. The proposed power amplifier is designed in 65nm CMOS process for 2.4 GHz carrier frequency. Simulation results show significant increase in efficiency at lower power levels, reduction in peak drain voltage, which improves reliability, and mitigation of process variation effects.
Year
DOI
Venue
2013
10.1109/ISCAS.2013.6571954
Circuits and Systems
Keywords
Field
DocType
CMOS analogue integrated circuits,capacitors,power amplifiers,radiofrequency amplifiers,reliability,CMOS process,LC tuning circuit,RF communication systems,duty cycle modulation,dynamic adaptive class-E switching power amplifier,frequency 2.4 GHz,high signal levels,integrated power amplifiers,process variation tolerance,reliability improvement,size 65 nm,variable capacitor
Variable capacitor,Computer science,Duty cycle,Electronic engineering,Process variation,Power-added efficiency,RF power amplifier,Current sense amplifier,Electrical engineering,Power bandwidth,Amplifier
Conference
ISSN
ISBN
Citations 
0271-4302
978-1-4673-5760-9
2
PageRank 
References 
Authors
0.49
1
2
Name
Order
Citations
PageRank
Aritra Banerjee19014.88
Abhijit Chatterjee21949269.99