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    A linear assisted switching envelope amplifier for a UHF polar transmitter

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    Identificadores
    URI: http://hdl.handle.net/10902/10125
    DOI: 10.1109/TPEL.2013.2270916
    ISSN: 0885-8993
    ISSN: 1941-0107
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    Author
    Fernández Miaja, Pablo; Sebastián Zúñiga, Francisco Javier; Marante Torres, Reinel; García García, José ÁngelAutoridad Unican
    Date
    2014-04
    Derechos
    © 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
    Publicado en
    IEEE Transactions on Power Electronics, 2014, 29(4), 1850-1861
    Publisher
    Institute of Electrical and Electronics Engineers Inc.
    Enlace a la publicación
    https://doi.org/10.1109/TPEL.2013.2270916
    Palabras clave
    Class E RF power amplifier
    DC-DC converter
    Envelope tracking
    Radio frequency amplifiers
    Abstract:
    Spectrally efficient wireless communication standards impose stringent linearity specifications, which would require traditional IQ transmitters to operate with back-offed and power inefficient linear RF power amplifiers (PAs). In order to overcome such a significant limitation, alternative architectures have been proposed, as those based on the envelope elimination and restoration technique. An example of the application of this technique is the polar transmitter. In this paper, a UHF polar transmitter is presented, combining switching and linear stages in the envelope amplifier as to achieve both wide bandwidth and high efficiency, when drain modulating a GaN HEMT Class E RF PA. Several tests, using EDGE, TETRA, and WCDMA standards have been performed with good results.
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    • D12 Artículos [280]
    • D12 Proyectos de Investigación [401]

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    UNIVERSIDAD DE CANTABRIA

    Repositorio realizado por la Biblioteca Universitaria utilizando DSpace software
    Contact Us | Send Feedback
    Metadatos sujetos a:licencia de Creative Commons Reconocimiento 3.0 España