Finnerty, Keith and Wesson, Robin and Dooley, John and Acar, Mustafa and van der Heijden, Mark P. and Farrell, Ronan (2015) Linearization of an Outphasing Amplifier for Wide-band Multi-carrier Signals. IEEE Microwave and Wireless Components Letters, 25 (2). pp. 139-141. ISSN 1558-1764

Preview

Download (580kB) | Preview

Abstract

A novel method using self-organizing maps to determine the optimum ranges to partition the vector switched Volterra series is presented. Analyzing characteristics of the input signal it is possible to separate different regions of operation. Partitioning of the correction algorithm provides the ability to target regions of different non-linear behavior with separate coefficients. This work is validated with experimentally measured results and shows an adjacent channel power ratio (ACPR) of -49/-50 dBc achieved for a four carrier Wideband Code-Division Multiple Access (WCDMA) signal using a 19 watt digital outphasing amplifier from NXP.

Item Type:	Article
Keywords:	Linear amplification with non-linear Components (LINC); linearization; outphasing amplifier; predistortion;
Academic Unit:	Faculty of Science and Engineering > Electronic Engineering Faculty of Science and Engineering > Research Institutes > Hamilton Institute
Item ID:	10283
Identification Number:	https://doi.org/10.1109/LMWC.2014.2382653
Depositing User:	Ronan Farrell
Date Deposited:	05 Dec 2018 15:30
Journal or Publication Title:	IEEE Microwave and Wireless Components Letters
Publisher:	IEEE
Refereed:	Yes
URI:	https://ieeexplore.ieee.org/
Use Licence:	This item is available under a Creative Commons Attribution Non Commercial Share Alike Licence (CC BY-NC-SA). Details of this licence are available here

Repository Staff Only(login required)

Item control page

Downloads

Origin of downloads