Now showing items 1-20 of 109

  • 3D digital predistortion for dual-band envelope tracking power amplifiers 

    Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; López Bueno, David; García García, José Ángel (2013)
    Conference lecture
    Restricted access - publisher's policy
    This paper proposes a novel three-dimensional digital predistorter (3D-DPD) suitable for compensating nonlinear distortion in dual-band (DB) envelope tracking (ET) power amplifiers (PAs). By taking into account the ...
  • 3-D distributed memory polynomial behavioral model for concurrent dual-band envelope tracking power amplifier linearization 

    Gilabert Pinal, Pere Lluís; Montoro López, Gabriel (IEEE Microwave Theory and Techniques Society, 2015-02-01)
    Article
    Open Access
    This paper presents a new 3-D behavioral model to compensate for the nonlinear distortion arising in concurrent dual-band (DB) Envelope Tracking (ET) Power Amplifiers (PAs). The advantage of the proposed 3-D distributed ...
  • A 2.4 GHz CMOS class-F power amplifier with reconfigurable load-impedance matching 

    Gilasgar, Mitra; Barlabe Dalmau, Antoni; Pradell i Cara, Lluís (2019)
    Article
    Open Access
  • A class of stable nonlinear systems for modelling memory effects in RF power amplifiers 

    Montoro López, Gabriel; Gilabert Pinal, Pere Lluís; Berenguer Sau, Jordi; Bertran Albertí, Eduardo (Escuela Politécnica Superior Ingeniería Gijón, 2006)
    Conference report
    Open Access
  • Active control based on an estimator for the bus-pumping cancellation in the half-bridge class-d audio power amplifiers 

    Sala Caselles, Vicenç; Romeral Martínez, José Luis (2011)
    Conference report
    Restricted access - publisher's policy
    In this paper is presented a new technique to avoid the distortion generated due to mid point voltage variations on DC-Bus of Class-D Half Bridge audio amplifiers. An usual distortion source on Class-D amplifier is the ...
  • Adaptive envelope shaping for low and medium power amplifiers with dynamic supply 

    Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Ruiz Lavin, Maria de las Nieves; García Antón, José A. (2016-07-01)
    Article
    Open Access
    This letter presents an adaptive envelope shaping (AES) method to linearize low and medium power amplifiers (PAs) with dynamic supply. This straightforward linearization solution results very useful for small cell or handset ...
  • Adaptive principal component analysis for online reduced order parameter extraction in PA behavioral modeling and DPD linearization 

    Pham, Thi Quynh Anh; López Bueno, David; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference report
    Restricted access - publisher's policy
    This paper presents a new method, based on the adaptive principal component analysis (APCA) technique, that iteratively creates and updates an orthogonal data matrix used to estimate the parameters of power amplifier (PA) ...
  • A doherty power amplifier based on a tapered line impedance inverter 

    Mehran, Yahyavi; Bertran Albertí, Eduardo (2014)
    Conference report
    Restricted access - publisher's policy
    This paper presents a wideband GaN Doherty power amplifier (DPA) in the 2.6 GHz band with a 3 stages Wilkinson splitter where the impedance inverter is based on a tapered line instead of a quarter wave transformer. From ...
  • A dual-band outphasing transmitter using broadband class E power amplifiers 

    Ruiz, Maria Nieves; Marante, Reinel; Rizo, Leysi; García, José Angel; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel (2014)
    Conference report
    Restricted access - publisher's policy
    In this paper, a dual-band outphasing transmitter (able of operating either at 770 MHz or 960 MHz frequency bands) is presented. Two broadband RF power amplifiers (PAs) have been designed over packaged GaN HEMT devices, ...
  • Advanced design features of Doherty power amplifiers 

    Bertran Albertí, Eduardo; Gilabert Pinal, Pere Lluís; Berenguer Sau, Jordi (Unión Científica Internacional de Radio, 2012)
    Conference report
    Open Access
    A Doherty power amplifier (DPA) is an effective structure born in 1936 which, after a scarce revival around year 2000), had been strengthened from 2005 because its capability to combine linear amplification with power ...
  • A full FPGA-based implementation of an adaptive digital predistorter 

    Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Bertran Albertí, Eduardo (University California San Diego, 2009)
    Conference report
    Open Access
  • Aging in CMOS RF linear power amplifiers: experimental comparison and modeling 

    Aragonès Cervera, Xavier; Mateo Peña, Diego; Barajas Ojeda, Enrique; Crespo-Yepes, A.; Rodríguez Martínez, Rosana; Martin Martínez, Javier; Nafría Maqueda, Montserrat (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
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    This paper characterizes experimentally the aging degradation experienced by two different 2.45 GHz power amplifier circuits of similar performance, implemented in a 65 nm CMOS technology. Results demonstrate the importance ...
  • A low-complexity memoryless model for envelope tracking RF power amplifiers 

    Montoro López, Gabriel; Gilabert Pinal, Pere Lluís; García García, José Ángel; Ruiz Lavin, Maria de las nieves; Marante, Reinel (European Microwave Association (EuMA), 2014)
    Conference report
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    This paper presents a new kind of behavioral model structure for characterizing static nonlinearities in dynamically supplied RF power amplifiers. The proposed architecture is based on the combination of several basic cells ...
  • Amping up, saving power 

    López Bueno, David; Wang, Teng; Gilabert Pinal, Pere Lluís; Montoro López, Gabriel (2016-01-01)
    Article
    Open Access
    Fourth-generation (4G) communication systems based on orthogonal frequency division multiplexing (OFDM) and the proposed backwards compatible fifth-generation (5G) variants, like filter-bank multicarrier (FBMC), are based ...
  • Amplificador Clase E para la Banda ISM 

    De Joz Rodriguez, Carlos Francisc (Universitat Politècnica de Catalunya, 2010-07-23)
    Bachelor thesis
    Open Access
    Es tracta de dissenyar un amplificador de RF classe E que treballi a 900 Mhz, utilitzant un transistor MOS. S'ha de dissenyar l'amplificador, escollir el transistor, dissenyar les xarxes d'accès, les xarxes d'adaptació, ...
  • Amplificador de potencia en banda ka 

    Corbella Sanahuja, Ignasi; Fortuny Guasch, Joaquim (1990)
    Conference report
    Open Access
  • Amplificador de potencia LDMOS classe E @ 700 Mhz 

    Martinez Pascual, Diego (Universitat Politècnica de Catalunya, 2009-07-24)
    Bachelor thesis
    Open Access
  • An alternative method to quantify the electromagnetic immunity based on the Weibull distribution 

    Fernández García, Raúl; Gil Galí, Ignacio (2013)
    Article
    Open Access
    It is accepted that the electromagnetic interference should be addressed with statistical analysis. Usually the impact of electromagnetic interference on different electronic samples is evaluated and the average immunity ...
  • Analysis of inter-modulation products and nonlinear distortion in RF OFDM transmitter systems 

    O'Droma, M; Lei, Y; Bertran Albertí, Eduardo; Gilabert Pinal, Pere Lluís (IEEE, 2009)
    Conference report
    Open Access
  • Analytical modeling method of thermal spreading resistance in BAW filters 

    González Rodríguez, Marta; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; González Arbesú, José María; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference lecture
    Restricted access - publisher's policy
    As the power requirements in BAW filters steadily increase, thermal behaviour emerges as a key asset to ensure device performance and reliability. Under these conditions, self-heating mechanisms drive to possible situations ...