Recent Submissions

  • Experimental exploration of longitudinal modes in spherical shells at 220 GHz – 330 GHz: applications to corneal sensing 

    Zarrinkhat, Faezeh; Lamberg, Joel; Baggio, Mariangela; Tamminen, Aleksi; Ala-Laurinaho, Juha; Khaled, Elsayed E. M.; Rius Casals, Juan Manuel; Romeu Robert, Jordi; Taylor, Zachary (Institute of Electrical and Electronics Engineers (IEEE), 2021)
    Conference report
    Restricted access - publisher's policy
    Submillimeter-wave and THz sensing of cornea leverage the layered tissue structure for assessments of corneal water content and thickness. The cornea is bounded by air on the anterior and an optically thick body of water ...
  • Efficient analysis of sheets with nonzero thickness 

    Úbeda Farré, Eduard; Rius Casals, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2021)
    Conference lecture
    Open Access
    The conventional scattering analysis of perfectly conducting plates neglects the scattering contribution of the rim in the discretization of the Electric-Field Integral Equation. This so-called thin-plate scheme manages ...
  • X-parameters based characterization of PIN diodes for reconfigurable antenna assessment 

    Ramírez Arroyave, Germán Augusto; Barlabe Dalmau, Antoni; Pradell i Cara, Lluís; Jofre Roca, Lluís (Íñigo Cuiñas Gómez, 2021)
    Conference report
    Restricted access - publisher's policy
    This contribution presents the non-linear characterization up to 50 GHz of a PIN diode commonly used as switch for reconfigurable devices at microwave applications. Non-linear models are extracted by means of X-parameter ...
  • Efficient analysis of thick curved metal sheets 

    Úbeda Farré, Eduard; Rius Casals, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2021)
    Conference report
    Open Access
    The scattering analysis of perfectly conducting plates with the method-of-moment discretization of the Electric-Field Integral Equation has been traditionally carried out according to the thin-sheet approximation, which ...
  • Fourier analysis of submillimeter-wave scattering from the human cornea 

    Zarrinkhat, Faezeh; Lamberg, Joel; Tamminen, Aleksi; Baggio, Mariangela; Ala-Laurinaho, Juha; Khaled, Elsayed E. M.; Rius Casals, Juan Manuel; Romeu Robert, Jordi; Taylor, Zachary (Institute of Electrical and Electronics Engineers (IEEE), 2021)
    Conference report
    Open Access
    Wave scattering from a human cornea illuminated with a submillimeter-wave Gaussian beam is explored with Fourier analysis. This new approach enabled us to investigate the cornea as a coated sphere rather than a homogenized ...
  • An UWB Tapered Slot Vivaldi Antenna (TSA) with improved characterestics 

    Akazzim, Youness; Kanjaa, Mohammed; El Mrabet, Otman; Jofre Roca, Lluís; Essaaidi, Mohamed (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference lecture
    Restricted access - publisher's policy
    In this paper, an UWB Tapered Slot Vivaldi Antenna (TSA) is presented. The proposed TSA is optimized in order to increase the bandwidth and ensure a good impedance matching at low and bandwidth frequencies while respecting ...
  • Millimeter-wave MIMO array measurement system for imaging and channel characterization 

    Ballesteros Sánchez, Christian; Montero Bayo, Luca; Ramírez Arroyave, Germán Augusto; Dagatti, Mayco; Solano Pérez, José Antonio; Molina García-Pardo, José María; Romeu Robert, Jordi; Jofre Roca, Lluís (Universidad de Málaga, 2020)
    Conference lecture
    Restricted access - publisher's policy
    Millimeter-wave band offer unique characteristicsto obtain good spatial position and resolution of certain type oftargets. The aim of this paper is to study a near-field focusingtechnique applied to the ...
  • Characterization of THz radiation by collimated wavefront aperture raster scanning 

    Nuño Gómez, Daniel-Juan; Santos Blanco, M. Concepción; Gomez Diaz, J. Sebastian; Romeu Robert, Jordi; Jofre Roca, Lluís (Universidad de Málaga, 2020)
    Conference report
    Open Access
    We present measurements for characterization of the beam profile and polarization pattern of lens-coupled photoconductive antennas (PCAs) at THz frequencies using a setup with antennas at fixed positions and a movable ...
  • Antenna packaging for in-body applications 

    Romeu Robert, Jordi; González López, Giselle; Blanch Boris, Sebastián; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference report
    Open Access
    A cylindrical mode expansion of the fields produced by an embedded antenna is used to determine the dimensions of the antenna packaging in order to minimize antenna impedance changes when the antenna is immersed in a varying ...
  • Study on beamforming V2I scenarios for sub-6 GHz and mmWave channels 

    Ballesteros Sánchez, Christian; Ramírez Arroyave, Germán Augusto; Montero Bayo, Luca; Romeu Robert, Jordi; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference report
    Open Access
    The study of the wireless channel between a hybrid massive MIMO Base Station (BS) and a vehicular platform is proposed. Several multi-antenna geometries and MIMO architectures in both vehicle and BS are numerically modeled ...
  • Design and characterization of non-planar 3D-printed passive UHF-RFID tag 

    Vidal Martínez, Neus; Salas Barenys, Arnau; Garcia Miquel, Aleix; Romeu Robert, Jordi; González López, Giselle; Jofre Roca, Lluís; López Villegas, José María (Institute of Electrical and Electronics Engineers (IEEE), 2020)
    Conference report
    Open Access
    This paper presents the design and preliminary characterization of a novel 3D passive UHF-RFID tag. The prototype is fabricated using additive manufacturing techniques: 3D printing and copper electroplating. The design, ...
  • A 3D printed lens antenna for 5G applications 

    Ballesteros, Christian; Maestre, Marcos; Santos Blanco, M. Concepción; Romeu Robert, Jordi; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference lecture
    Open Access
    A switchable multi-antenna architecture for lens-assisted beamsteering in the Ka-band region allocated for 5G communications (24-30 GHz) is proposed. The radiating elements are bow-tie antennas mounted with a 3D printed ...

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