Back to Search Start Over

Linearity of X-Band Class-E Power Amplifiers in EER Operation.

Authors :
Narisi Wang
Xinli Peng
Yousefzadeh, Vahid
Maksimović, Dragan
Pajić, Srdjan
Popović, Zoya
Source :
IEEE Transactions on Microwave Theory & Techniques. Mar2005 Part 2 of 2, Vol. 53 Issue 3, p1096-1102. 7p.
Publication Year :
2005

Abstract

Multifunctional RF front ends need to transmit different types of signals while maintaining efficiency and signal quality. This paper addresses efficient transmitter power amplifiers (PAs) for signals with varying peak-to-average ratios, requiring simultaneous efficiency and linearity. Linearity characterization of class-E high-efficiency PAs operating in envelope elimination and restoration (EER) mode is discussed. Specifically, a 67 % -efficient 10-GHz MESFET PA is characterized in terms of its AM-AM, AM-PM conversion and intermodulation products. Measurements of intermodulation distortion are compared with harmonic-balance simulations using TriQuint's Own Model provided by the device manufacturer. It is shown experimentally and through simulations that the amplifier in the EER mode has improved linearity while maintaining high-efficiency operation. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
00189480
Volume :
53
Issue :
3
Database :
Academic Search Index
Journal :
IEEE Transactions on Microwave Theory & Techniques
Publication Type :
Academic Journal
Accession number :
16470073
Full Text :
https://doi.org/10.1109/TMTT.2005.843500