Recent Submissions

  • 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 ...
  • Study of interconnecting switch currents in reconfigurable parasitic layer antennas 

    Ramirez, German; Araque, Javier; Ballesteros Sánchez, Christian; Blanch Boris, Sebastián; Romeu Robert, Jordi; Cetiner, Bedri Artug; Jofre Roca, Lluís (2019)
    Conference lecture
    Restricted access - publisher's policy
    This work presents an approach for calculating the currents across the switches of a reconfigurable parasitic layer intended to add beam-steering capabilities to a reference antenna. The method of analysis is based on the ...
  • Efficient and accurate electromagnetic scattering analysis of perfectly conducting thick plates 

    Úbeda Farré, Eduard; Sekulic, Ivan; Rius Casals, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Restricted access - publisher's policy
    The scattering analysis with the Electric-Field Integral Equation by the Method of Moments of perfectly conducting plates is normally carried out through the thin-plate approximation, which models the closed surface as an ...
  • Geometric algebra formulation of the Calderon Projector 

    López Menchón, Héctor; Rius Casals, Juan Manuel; Úbeda Farré, Eduard; Heldring, Alexander (2019)
    Conference lecture
    Restricted access - publisher's policy
    Geometric Algebra provides a mathematical frame-work that allows to express many equations of physics in a more compact way [1]. It unifies the electric and the magnetic field in a single mathematical object: a multivector. ...
  • Grid-robust discretization of integral equations in the electromagnetic scattering analysis of homogeneous targets with geometric singularities 

    Úbeda Farré, Eduard; Sekulic, Ivan; Rius Casals, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference report
    Restricted access - publisher's policy
    The conventional method-of-moment schemes of discretization for the scattering analysis of homogeneous targets, perfectly conducting or dielectric, rely on edge-based basis functions. This restricts the modelling of the ...
  • A model for photocurrent generation in photoconductive antennas 

    López Menchón, Héctor; Revuelta Martinez, Sergio; Santos Blanco, M. Concepción; Romeu Robert, Jordi; Rius Casals, Juan Manuel (2019)
    Conference lecture
    Restricted access - publisher's policy
    The laser-induced current carrier generation and transport under large biasing voltages in photoconductive materials located in electrode gap region of photoconductive antennas is a complex process involving many different ...
  • An architecture analysis for millimeter-wave optically steerable antenna array 

    Ballesteros Sánchez, Christian; Maestre, Marcos; Santos Blanco, M. Concepción; Romeu Robert, Jordi; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference lecture
    Restricted access - publisher's policy
    A lens-based integrated photodiode-antenna array for a Radio over Fiber (RoF) 5G wireless base station at millimeter-wave frequencies is proposed and analyzed. The elements of the array are based on slot bow-tie antennas ...
  • Electromagnetic monitoring of biological microorganisms 

    Zarrinkhat, Faezeh; Garrido, Alejandra; Jofre Roca, Lluís; Romeu Robert, Jordi; Rius Casals, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2019)
    Conference lecture
    Restricted access - publisher's policy
    The investigation of the electromagnetic properties of biological cells in the microwave frequencies may enable wireless monitoring of functional activity of microorganisms. Both theoretical and experimental methodologies ...

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