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    Linearization of an Outphasing Amplifier for Wide-band Multi-carrier Signals


    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

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    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: Dr. Ronan Farrell
    Date Deposited: 05 Dec 2018 15:30
    Journal or Publication Title: IEEE Microwave and Wireless Components Letters
    Publisher: IEEE
    Refereed: Yes
    URI:

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