Recent Submissions

  • Microstrip-fed 3D-printed H-sectorial horn phased array 

    Zhou, Ivan; Pradell i Cara, Lluís; López Villegas, José María; Vidal Martínez, Neus; Albert Gali, Miquel; Jofre Roca, Lluís; Romeu Robert, Jordi (Multidisciplinary Digital Publishing Institute (MDPI), 2022-07-16)
    Article
    Open Access
    A 3D-printed phased array consisting of four H-Sectorial horn antennas of 200 g weight with an ultra-wideband rectangular-waveguide-to-microstrip-line transition operating over the whole LMDS and K bands (24.25–29.5 GHz) ...
  • Increasing stratification as observed by satellite sea surface salinity measurements 

    Olmedo Casal, Estrella; Turiel Martínez, Antonio; González Gambau, Verónica; González Haro, Cristina; García Espriu, Aina; Gabarró Prats, Carolina; Portabella, Marcos; Corbella Sanahuja, Ignasi; Martín Neira, Manuel; Arias Ballesteros, Manuel; Catany, Rafael; Sabia, Roberto; Olivia, Roger; Scipal, Klaus (Nature, 2022-12-01)
    Article
    Open Access
    Changes in the Earth’s water cycle can be estimated by analyzing sea surface salinity. This variable refects the balance between precipitation and evaporation over the ocean, since the upper layers of the ocean are the ...
  • Evaluation of the nonlinear surface resistance of REBCO coated conductors for their use in the FCC-hh beam screen 

    Krkotic, Patrick; Romanov, Artur; Tagdulang, Nikki; Telles, Guilherme; Puig Molina, Teresa; Gutiérrez Royo, Joffre; Granados García, Xavier; Calatroni, Sergio; Pérez, Francis; Pont Montaner, Montserrat; O'Callaghan Castellà, Juan Manuel (2022-01-07)
    Article
    Open Access
    To assess the feasibility of using high-temperature superconductors for the beam screens of future circular colliders, we have undertaken a study of the power dependence of the microwave surface resistance in state-of-the-art ...
  • Design of minimum nonlinear distortion reconfigurable antennas for next-generation communication systems 

    Ramírez Arroyave, Germán Augusto; Barlabe Dalmau, Antoni; Pradell i Cara, Lluís; Araque Araque, Javier Leonardo; Cetiner, Bedri Artug; Jofre Roca, Lluís (2021-04-01)
    Article
    Open Access
    Nonlinear effects in the radio front-end can degrade communication quality and system performance. In this paper we present a new design technique for reconfigurable antennas that minimizes the nonlinear distortion and ...
  • A simple low-cost electrocardiogram synchronizer 

    Amorós García de Valdecasas, Susana; Galvez Monton, Carolina; Rodríguez Leor, Oriol; O'Callaghan Castellà, Juan Manuel (Multidisciplinary Digital Publishing Institute (MDPI), 2021-09-01)
    Article
    Open Access
    Electrocardiogram (ECG) synchronization is useful to avoid the effects of cardiac motion in medical measurements, and is widely used in standard medical imaging. A number of medical equipment include embedded commercial ...
  • Rayleigh backscattering rejection in single-laser homodyne transceiver for UD-WDM using λ-Shifting 

    Masanas Jiménez, Miquel; Santos Blanco, M. Concepción; Tabares Giraldo, Jeison; Polo Querol, Víctor; Prat Gomà, Josep Joan (2021-04-01)
    Article
    Open Access
    With the aim of using a single laser per transceiver in single fiber splitter-based passive optical networks (PON) with coherent homodyne receivers, we apply wavelength shifting in an ultra-dense wavelength division ...
  • A novel digital IQ demodulation for interferometric radiometers 

    Corbella Sanahuja, Ignasi; Martín Neira, Manuel; Vilaseca, Roger; Catalán Artigas, Albert; Torres Torres, Francisco; Suess, Martin (Multidisciplinary Digital Publishing Institute (MDPI), 2021-03-02)
    Article
    Open Access
    In the frame of an SMOS follow-on operational mission, a new instrument design is being developed based on the lessons learned from MIRAS, the SMOS payload. To reduce hardware complexity and mass, digital In-phase Quadrature ...
  • Characterisation of copper and stainless steel surfaces treated with laser ablation surface engineering 

    Hannah, Adrian N.; Krkotic, Patrick; Valizadeh, Reza; Malyshev, Oleg; Mutch, J.; Whitehead, David J.; Pont, Montse; O'Callaghan Castellà, Juan Manuel; Dhanak, Vinod R. (2021-07)
    Article
    Restricted access - publisher's policy
    In the past few years, it has been established that Laser Ablation Surface Engineering (LASE) is a very effective way of producing surfaces which have Secondary Electron Yields (SEY)¿<¿1. This can be achieved with a variety ...
  • Optical phase effects in reconfigurable microwave photonic filters with multiple wavelength input 

    Nuño Gómez, Daniel-Juan; Santos Blanco, M. Concepción (2021-11)
    Article
    Open Access
    Microwave photonic filters with a multiple wavelength input are analyzed. A comprehensive model assessing the impact of the phase characteristic of the optical stage is presented from which optimized design rules have been ...
  • Algorithm for resonator parameter extraction from symmetrical and asymmetrical transmission responses 

    Krkotic, Patrick; Gallardo Moix, Queralt; Tagdulang, Nikki; Pont Montaner, Montserrat; O'Callaghan Castellà, Juan Manuel (IEEE Microwave Theory and Techniques Society, 2021-08)
    Article
    Open Access
    We describe an algorithm capable of extracting the unloaded quality factor and the resonant frequency of microwave resonators from vector S-parameters. Both symmetrical (Lorentzian) and asymmetrical (Fano) transmission ...
  • Mixed integration of CDIO skills into telecommunication engineering curricula 

    Sayrol Clols, Elisa; Bragós Bardia, Ramon; Alarcón Cot, Eduardo José; Cabrera-Bean, Margarita; Calveras Augé, Anna M.; Comellas Colomé, Jaume; O'Callaghan Castellà, Juan Manuel; Pegueroles Vallés, Josep R.; Pla, Enrique; Prat Viñas, Lluís; Sáez Moreno, Germán; Sardà Ferrer, Joan; Tallon Montoro, Carme (2010)
    Article
    Open Access
    Spain has been intensively involved in designing engineering curricula for the last two years and next academic year all engineering schools will be deploying all bachelor programs adapted to the EHEA and to the Spanish ...
  • SMOS third mission reprocessing after 10 years in orbit 

    Oliva Balagué, Roger; Martín Neira, Manuel; Corbella Sanahuja, Ignasi; Closa Soteras, Josep; Zurita Campos, Alberto Manuel; Cabot, François; Khazaal, Ali; Richaume, Philippe; Kainulainen, Juha; Barbosa, José; Lopes, Gonçalo; Tenerelli, Joseph; Díez García, Raúl; González Gambau, Verónica; Crapolicchio, Raffaele (Multidisciplinary Digital Publishing Institute (MDPI), 2020-05-01)
    Article
    Open Access
    After more than 10 years in orbit, the SMOS team has started a new reprocessing campaign for the SMOS measurements, which includes the changes in calibration and image reconstruction that have been made to the Level 1 ...

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