Recent Submissions

  • Comprehensive nonlinear characterization and modeling of a BAW duplexer 

    Collado Gómez, Juan Carlos; Mateu Mateu, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference lecture
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    This paper performs a comprehensive nonlinear modeling of a Bulk Acoustic Wave (BAW) duplexer operating at the band 7 of the LTE wireless communication standard. The modeling starts by an accurate characterization of the ...
  • Linealización digital de transmisores mediante redes neuronales no lineales 

    López Bueno, David; Pham, Thi Quynh Anh; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (2019)
    Conference report
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    This paper presents an overview on how the artificial neural networks (ANN) are applied to digitally linearize modern transmitters. The use of nonlinear ANNs is intended to either assist or replace the traditional crest ...
  • 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
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    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 ...
  • Practical issues on the implementation of acoustic transversal filters 

    Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference lecture
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    This paper evaluates important aspect of acoustic filters based on a transversal configuration in order to foreseen the potential and limitations of this new configuration. These aspects are: effects of the losses of the ...
  • Role of SiO2 layers in third-order nonlinear effects of temperature compensated BAW resonators 

    García Pastor, David; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
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    This work applies a comprehensive nonlinear characterization process of two Temperature Compensated Bulk Acoustic Wave (TC-BAW) resonators. In both resonators, the SiO 2 layers have a remarkable impact on the generation ...
  • N-Plexer and N-Band acoustic filters based on transversal configuration 

    Perea Robles, Rafael; Mateu Mateu, Jordi; Collado Gómez, Juan Carlos (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference lecture
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    This work shows the feasibility of using filters with transversal configuration to create N-Plexers and N-Band responses, by directly connecting several BAW filters in a transversal manner. The new multi-filtering solutions ...
  • Analysis of border ring modes on SMR-BAW resonators 

    Udaondo Guerrero, Carlos; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference lecture
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    An equivalent circuit model is proposed in order to model the Border Ring (BR) spurious modes on Type I Solidly Mounted Resonators (SMR) BAW resonators and the cancellation of the in-band lateral modes that the BR frame ...
  • A method for selecting online the coefficients to be updated in a DPD for PA linearization 

    Pham, Thi Quynh Anh; Montoro López, Gabriel; López Bueno, David; Gilabert Pinal, Pere Lluís (2019)
    Conference report
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    This paper presents a technique for selecting onlinethe coefficients to be updated in a digital predistorter (DPD)based on direct learning. The proposed method, which is basedon a combination of matching pursuit (MP) and ...
  • Dynamic selection and update of digital predistorter coefficients for power amplifier linearization 

    Pham, Thi Quynh Anh; López Bueno, David; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís
    Conference lecture
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    In this paper, a new method for dynamically estimating and updating the coefficients of a digital predistortion (DPD) linearizer is presented. By means of the partial least squares (PLS) algorithm, the basis matrix used ...
  • Synthesis of acoustic wave filters for enhanced response 

    Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Hueltes, Alberto; Aigner, Robert; Khlat, Nadim (2018)
    Conference report
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    Acoustic filters are, without any doubt, the key technology for the development of highly miniature high performance RF/Microwave filters. Such a technological and engineering effort has been one of the driving forces for ...
  • A High-Efficiency RF Harvester with Maximum Power Point Tracking 

    Gasulla Forner, Manuel; Robert Sanxis, Francesc Josep; Jordana Barnils, José; Ripoll Vercellone, Edgar; Berenguer Sau, Jordi; Reverter Cubarsí, Ferran (Multidisciplinary Digital Publishing Institute (MDPI), 2018)
    Conference report
    Open Access
    This paper presents the implementation of a high-efficiency radiofrequency (RF) harvester, which consists of a rectenna and a maximum power point tracker (MPPT). The rectenna was characterized from -30 dBm to -10 dBm at ...
  • A software radio challenge accelerating education and innovation in wireless communications 

    González Rodríguez, Marta; Gelonch Bosch, Antonio José; Marojevic, Vuk (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference lecture
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    This Innovative Practice Full Paper presents our methodology and tools for introducing competition in the electrical engineering curriculum to accelerate education and innovation in wireless communications. Software radio ...

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