Recent Submissions

  • Design of a deployable helix antenna at L-Band for a 1-Unit CubeSat: from theoretical analysis to flight model results 

    Fernandez Capon, Lara Pilar; Sobrino Hidalgo, Marco; Ruiz de Azua, Joan Adria; Calveras Augé, Anna M.; Camps Carmona, Adriano José (Multidisciplinary Digital Publishing Institute (MDPI), 2022-05-01)
    Article
    Open Access
    The 3Cat-4 mission aims at demonstrating the capabilities of a CubeSat to perform Earth Observation (EO) by integrating a combined GNSS-R and Microwave Radiometer payload into a 1-Unit CubeSat. One of the greatest challenges ...
  • In-cabin 120 GHz radar system for functional human breathing monitoring in a 3D scenario 

    López Montero, María José; Aguasca Solé, Alberto; Romeu Robert, Jordi; Jofre Roca, Lluís (Íñigo Cuiñas Gómez, 2021)
    Conference report
    Open Access
    Driving is one of the activities that takes a significant part of a person’s time, that is why monitoring vital signs is useful for the wellness of the occupants of the vehicle. One of the vital signs that provides more ...
  • Vector spherical harmonic analysis and experimental validation of spherical shells illuminated with broadband, millimeter wave Gaussian beams: applications to corneal sensing 

    Zarrinkhat, Faezeh; Lamberg, Joel; Tamminen, Aleksi; Baggio, Mariangela; Nefedova, Irina; Ala-Laurinaho, Juha; Khaled, Elsayed E. M.; Romeu Robert, Jordi; Rius Casals, Juan Manuel; Taylor, Zachary (2022-06-03)
    Article
    Open Access
    Coupling to longitudinal modes of thin spherical shells, under Gaussian-beam illumination, was explored with a theoretical method based on Fourier-optics analysis and vector spherical harmonics and was scrutinized with an ...
  • A parallel Monte Carlo method for solving electromagnetic scattering in clusters of dielectric objects 

    López Menchón, Héctor; Úbeda Farré, Eduard; Heldring, Alexander; Rius Casals, Juan Manuel (Elsevier, 2022-08-15)
    Article
    Restricted access - publisher's policy
    In this work, we develop a novel Monte Carlo method for solving the electromagnetic scattering problem for clusters of photonic particles. The method is based on a formal solution of the scattering problem as a modified ...
  • Volcanic eruption of Cumbre Vieja, La Palma, Spain: A first insight to the particulate matter injected in the troposphere 

    Sicard, Michaël; Cordoba Jabonero, Carmen; Barreto Velasco, África; Welton, Ellsworth J.; Gil Díaz, Cristina; Carvajal Pérez, Clara Violeta; Comerón Tejero, Adolfo; García Rodríguez, Omaira; Muñoz Porcar, Constantino; Rodríguez Gómez, Alejandro Antonio (Multidisciplinary Digital Publishing Institute (MDPI), 2022-05-20)
    Article
    Open Access
    The volcanic eruption of Cumbre Vieja (La Palma Island, Spain), started on 19 September 2021 and was declared terminated on 25 December 2021. A complete set of aerosol measurements were deployed around the volcano within ...
  • On the locality of attention in direct speech translation 

    Alastruey Lasheras, Belén; Ferrando Monsonís, Javier; Gallego Olsina, Gerard Ion; Ruiz Costa-Jussà, Marta (Association for Computational Linguistics, 2022)
    Conference lecture
    Open Access
    Transformers have achieved state-of-the-art results across multiple NLP tasks. However, the self-attention mechanism complexity scales quadratically with the sequence length, creating an obstacle for tasks involving long ...
  • Compression of multibeam echosounders bathymetry and water column data 

    Martí, Aniol; Portell de Mora, Jordi; Amblàs Novellas, David; Cabrera Estanyol, Ferran de; Vila Insa, Marc; Riba Sagarra, Jaume; Mitchell, Garrett (Multidisciplinary Digital Publishing Institute (MDPI), 2022-04-25)
    Article
    Open Access
    Over the past decade, Multibeam Echosounders (MBES) have become one of the most used techniques in sea exploration. Modern MBES are capable of acquiring both bathymetric information on the seafloor and the reflectivity of ...
  • A preliminary study on ionospheric scintillation anomalies detected using GNSS-R data from NASA CYGNSS mission as possible earthquake precursors 

    Molina Ordóñez, Carlos; Boudriki Semlali, Badr Eddine; Hyuk, Park; Camps Carmona, Adriano José (Multidisciplinary Digital Publishing Institute (MDPI), 2022-05-26)
    Article
    Open Access
    Ionospheric perturbations affect the propagation of electromagnetic waves. These perturbations, besides being a problem for space communications, satellite navigation, and Earth observation techniques, could also be used ...
  • Calibration alignment sensitivity in corneal terahertz imaging 

    Zarrinkhat, Faezeh; Baggio, Mariangela; Lamberg, Joel; Tamminen, Aleksi; Nefedova, Irina; Ala-Laurinaho, Juha; Khaled, Elsayed E. M.; Rius Casals, Juan Manuel; Romeu Robert, Jordi; Taylor, Zachary (Multidisciplinary Digital Publishing Institute (MDPI), 2022-04-22)
    Article
    Open Access
    Improving the longitudinal modes coupling in layered spherical structure contributes significantly to corneal terahertz sensing, which plays a crucial role in the early diagnosis of cornea dystrophies. Using a steel sphere ...
  • Distributed nonlinear model and fast analysis for in-band IMD3 prediction of surface acoustic wave resonators 

    González Rodríguez, Marta; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; González Arbesú, José María; Huebner, Sebatian (Institute of Electrical and Electronics Engineers (IEEE), 2022-01-01)
    Article
    Open Access
    The motivation of this work is to analyze the in-band intermodulation distortion (IMD) occurring in surface acoustic wave (SAW) devices, using a recently developed fast method based on the input–output equivalent sources ...
  • Method to measure reflection coefficient under CW high-power signals in SAW resonators 

    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), 2021)
    Conference report
    Restricted access - publisher's policy
    Improving power handling and lifetime are key assets to ensure device performance and reliability. SAW resonators composed by very thin cross-section inter-digital transducer (IDT) structures make difficult to control the ...
  • Out of band improved performance into a measured 5G N77 band transversal filter 

    Udaondo Guerrero, Carlos; Collado Gómez, Juan Carlos; Mateu Mateu, Jordi; Perea Robles, Rafael; Yusud, Yazid; Giménez Bonastre, Alfred Raul; Aigner, Robert (Institute of Electrical and Electronics Engineers (IEEE), 2021)
    Conference report
    Restricted access - publisher's policy
    Transversal networks for electroacoustic filters had been proposed and manufactured recently. One of the main problems that arose in the first prototype were the spurious modes due to the mirror stack of the Solidly Mounted ...

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