Recent Submissions

  • Dynamic selection and estimation of the digital predistorter parameters for power amplifier linearization 

    Pham, Thi Quynh Anh; Montoro López, Gabriel; López Bueno, David; Gilabert Pinal, Pere Lluís (IEEE Microwave Theory and Techniques Society, 2019-07-03)
    Article
    Open Access
    This paper presents a new technique that dynamically estimates and updates the coefficients of a digital predistorter (DPD) for power amplifier (PA) linearization. The proposed technique is dynamic in the sense of estimating, ...
  • Tecnologies emergents aplicades al sector agroalimentari 

    Berenguer Sau, Jordi (2020-01)
    Article
    Open Access
    Alguns dels objectius de desenvolupament sostenible que proposa l’Agenda 2030 són: posar fi a la fam, assolir la seguretat alimentària i la millora de la nutrició i promoure l’agricultura sostenible. Assumir aquests reptes ...
  • Spectral weighting orthogonal matching pursuit algorithm for enhanced out-of-band digital predistortion linearization 

    Gilabert Pinal, Pere Lluís; López Bueno, David; Montoro López, Gabriel (2018-01-01)
    Article
    Open Access
    This paper presents a new variant of the orthogonal matching pursuit (OMP) algorithm for reducing the computational complexity of the digital predistortion (DPD) behavioral model in the forward path. The proposed spectral ...
  • Digital predistorters go multidimensional: DPD for concurrent multiband envelope tracking and outphasing power amplifiers 

    Gilabert Pinal, Pere Lluís; Montoro López, Gabriel; Vegas Garcia, Ángel; Ruiz Lavin, Maria de las Nieves; García García, José Ángel (2019-05-01)
    Article
    Open Access
    Over at least the last two decades, digital predistortion (DPD) has become the most common and widespread solution to cope with the power amplifier's (PA's) inherent linearity-versus-efficiency tradeoff. When compared with ...
  • Sub-nanosecond tuning of microwave resonators fabricated on ruddlesden–popper dielectric thin films 

    Hagerstrom, A. M.; Lu, Xifeng; Dawley, Natalie M.; Mateu Mateu, Jordi (Wiley, 2018-08-01)
    Article
    Open Access
    Voltage-tunable dielectric materials are widely used for microwave-frequency signal processing. Among tunable dielectric thin films, (SrTiO3)nSrO Ruddlesden–Popper (RP) superlattices have exceptionally low loss at high ...
  • Independent digital predistortion parameters estimation using adaptive principal component analysis 

    López Bueno, David; Pham, Thi Quynh Anh; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (IEEE Microwave Theory and Techniques Society, 2018-01-01)
    Article
    Open Access
    This paper presents an estimation/adaptation method based on the adaptive principal component analysis (APCA) technique to guarantee the identification of the minimum necessary parameters of a digital predistorter. The ...
  • Partial least squares identification of multi look-up table digital predistorters for concurrent dual-band envelope tracking power amplifiers 

    Pham, Thi Quynh Anh; López Bueno, David; Wang, Teng; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (IEEE Microwave Theory and Techniques Society, 2018-08-02)
    Article
    Open Access
    This paper presents a technique to estimate the coefficients of a multiple-look-up table (LUT) digital predistortion (DPD) architecture based on the partial least-squares (PLS) regression method. The proposed 3-D distributed ...
  • Feed-forward technique to measure the reflection coefficient under CW high-power signals 

    Collado Gómez, Juan Carlos; González Rodríguez, Marta; González Arbesú, José María; Mateu Mateu, Jordi; Verdú Tirado, Jordi; Hueltes Escobar, Alberto (IEEE Microwave Theory and Techniques Society, 2018-10-01)
    Article
    Open Access
    This paper describes a measurement setup to obtain the reflection coefficient response over the frequency of a given device when this is subjected to a single-tone high-power (HP) signal. The proposed system is based on a ...
  • Track detection in railway sidings based on MEMS gyroscope sensors 

    Broquetas Ibars, Antoni; Comerón Tejero, Adolfo; Gelonch Bosch, Antonio José; Fuertes Armengol, José Mª; Castro Fernández, José Antonio; Felip, Damià; López Márquez, Miguel Ángel; Pulido, Jose Antonio (Multidisciplinary Digital Publishing Institute (MDPI), 2012-11-23)
    Article
    Open Access
    The paper presents a two-step technique for real-time track detection in single-track railway sidings using low-cost MEMS gyroscopes. The objective is to reliably know the path the train has taken in a switch, diverted or ...
  • Nonlinear effects of SiO2 layers in bulk acoustic wave resonators 

    Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; García Pastor, David; Perea Robles, Rafael; Hueltes Escobar, Alberto; Kreuzer, Susanne; Aigner, Robert (IEEE Microwave Theory and Techniques Society, 2017-12-29)
    Article
    Open Access
    This paper presents the development of a comprehensive distributed circuit model to account for the existing nonlinear effects in bulk acoustic wave (BAW) resonators. The comprehensiveness of the model and its distributed ...
  • Teaching telecommunication standards: bridging the gap between theory and practice 

    Gelonch Bosch, Antonio José; Marojevic, Vuk; Gómez Miguelez, Ismael (2017-05)
    Article
    Open Access
    Telecommunication standards have become a reliable mechanism to strengthen collaboration between industry and research institutions to accelerate the evolution of communications systems. Standards are needed to enable ...
  • Waveguide filter modeling and simulation using mode-matching, fullwave network analysis and swarm optimization 

    Bouchachi, Islem; Mateu Mateu, Jordi; Lahdi Riabi, Mohamed (2017-02-01)
    Article
    Restricted access - publisher's policy
    The paper presents the synthesis of forth-order waveguide bandpass filter, employing a symmetric configuration and leading to symmetric response with four poles and two transmission zeroes. For this synthesis we aimed to ...

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