CSC - Components and Systems for Communications Research Group: Enviaments recents

Ara es mostren els items 1-12 de 188

    • GPU versus FPGA implementation of a digital predistortion linearizer for wideband radiofrequency power amplifiers 

      Li, Wantao; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (Elsevier, 2024-01)
      Article
      Accés obert
      This paper presents and compares the implementation of a digital predistortion (DPD) linearizer for radiofrequency power amplifiers (PAs) considering two different hardware acceleration platforms. Both graphics processing ...

    • Toward band n78 shear bulk acoustic resonators using crystalline Y-Cut lithium niobate films with spurious suppression 

      Yandrapalli, Soumya; Kuçuk Eroglu, Seniz E.; Mateu Mateu, Jordi; Collado Gómez, Juan Carlos; Plessky, Victor; Villanueva, Luis Guillermo (Institute of Electrical and Electronics Engineers (IEEE), 2023-06-15)
      Article
      Accés obert
      This work presents the study of suspended Y-cut Lithium Niobate shear bulk acoustic resonators for wide band filter applications in the frequency range of 3.5-4.5GHz. The resonators consist of a Lithium Niobate film with ...

    • Digital predistortion linearization of a GaN HEMT push-pull power amplifier for cable applications with high fractional bandwidth 

      Gilabert Pinal, Pere Lluís; Pérez-Cisneros, José Ramón; Ren, Zhixiong; Montoro López, Gabriel; Ruiz Lavin, Maria de las Nieves; García García, José Ángel (2023-03-07)
      Article
      Accés obert
      This paper presents two linearization strategies for a custom-designed wideband push-pull (PP) power amplifier (PA) for wired communication applications such as, for example, cable TV. Two digital predistortion (DPD) ...

    • Digital linearization of wideband envelope tracking power amplifiers for mobile terminals 

      Li, Wantao; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (IEEE Microwave Theory and Techniques Society, 2023-01)
      Article
      Accés obert
      This article presents a low-complexity linearization method to compensate for multisource nonlinear distortion in wideband envelope tracking (ET) power amplifiers (PAs) for 5G new radio (NR) mobile terminals. The proposed ...

    • Quasi-3D model for lateral resonances on homogeneous BAW resonators 

      Udaondo Guerrero, Carlos; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi (Multidisciplinary Digital Publishing Institute (MDPI), 2023)
      Article
      Accés obert
      Lateral modes are responsible for the in-band spurious resonances that appear on BAW resonators, degrading the in-band filter response. In this work, a fast computational method based on the transmission line matrix (TLM) ...

    • A tutorial on the characterisation and modelling of low layer functional splits for flexible radio access networks in 5G and beyond 

      Pérez Romero, Jordi; Sallent Roig, Oriol; Gelonch Bosch, Antonio José; Gelabert Doran, Xavier; Klaiqi, Bleron; Kahn, Marcus; Campoy García, David (Institute of Electrical and Electronics Engineers (IEEE), 2023-10)
      Article
      Accés obert
      The centralization of baseband (BB) functions in a radio access network (RAN) towards data processing centres is receiving increasing interest as it enables the exploitation of resource pooling and statistical multiplexing ...

    • Workshops at IMS2023 

      Gilabert Pinal, Pere Lluís; Wang, Etahn (2023-05)
      Article
      Accés obert
      Lists future events that should be of interest to practitioners and researchers.

    • Slow-envelope shaping function FPGA implementation for 5G NR envelope tracking PA 

      Li, Wantao; Bartzoudis, Nikolaos; Rubio Fernández, José; López Bueno, David; Montoro López, Gabriel; Gilabert Pinal, Pere Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      This paper focuses on the FPGA implementation of a slew-rate reduction (SR) shaping function for envelope tracking (ET) power amplifiers (PAs). The SR envelope has been proved effective to trade-off power efficiency and ...

    • Analysis of spurious peaks at series resonance in solidly mounted resonators by combined BVD-Mason modelling 

      Lugo Hernández, Eduardo; Mirea, Teona; Carmona Cejas, Jose Manuel; Clement Lorenzo, Marta; Olivares Roza, Jimena; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi (2023-05)
      Article
      Accés obert
      Solidly Mounted Resonators (SMRs) for high frequency RF filters and sensing applications often display spurious resonances that distort their frequency response. In this work, we try to identify the origin of spurious ...

    • Fast modeling of lateral modes in BAW resonators with arbitrary in-plane geometry 

      Udaondo Guerrero, Carlos; Collado Gómez, Juan Carlos; Mateu Llevadot, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The Transmission Line Matrix (TLM) method is used to model and predict lateral spurious resonances in a BAW resonator. The dispersive characteristics of the main propagating mode, which are defined by the stack of materials, ...

    • Application of the input-output equivalent sources method for the simulation of nonlinearities in TC-SAW resonators and filters 

      González Rodríguez, Marta; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; González Arbesú, José María; Huebner, Sebatian; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Text en actes de congrés
      Accés obert
      A good understanding of the nonlinearity mechanism in SAW devices is a crucial aspect in the filter stage. Nonlinear intermodulation distortion (IMD) may lead to spurious signals falling into the receiver band and limiting ...

    • Updated BVD modeling of AlN-based solidly mounted resonators working at cryogenic and high temperatures: from -160°C up to 130°C 

      Lugo Hernández, Eduardo; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Carmona Cejas, José Manuel; Mirea, Teona; Olivares Roza, Jimena (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Comunicació de congrés
      Accés obert
      In this work we theoretically and experimentally assess the behavior of AlN-based Solidly Mounted Resonators (SMR) at cryogenic and high temperatures. This study can be useful for precise behavior prediction of SMR sensors ...