Ara es mostren els items 46-65 de 245

    • Assessment of LTCC-based dielectric flat lens antennas and switched-beam arrays for future 5G millimeter-wave communication systems 

      Imbert Villà, Marc; Romeu Robert, Jordi; Baquero Escudero, M.; Martinez Ingles, Maria Teresa; Molina-Garcia Pardo, Jose Maria; Jofre Roca, Lluís (2017-10-30)
      Article
      Accés obert
      IEEE This paper presents design, LTCC fabrication, and full experimental verification of novel dielectric flat lens antennas for future high data rate 5G wireless communication systems in the 60 GHz band. We introduce and ...
    • Assessment of mmwave handset arrays in the presence of the user body 

      Ballesteros Sánchez, Christian; Vähä-Savo, Lauri; Haneda, Katsuyuki; Icheln, Clemens; Romeu Robert, Jordi; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2021-01-01)
      Article
      Accés obert
      The emergence of mobile terminals operating at millimeter-wave frequencies necessitates the ability to evaluate the effect the environment, and in particular, users have on their radiation properties. Some studies evaluated ...
    • Automatic polyp detection using microwave endoscopy for colorectal cancer prevention and early detection: phantom validation 

      Garrido Atienza, Alejandra; Sont Colomer, Roberto; Dghoughi, Walid; Marcoval Martínez, Sergi; Romeu Robert, Jordi; Fernández-Esparrach, Glòria; Belda Reig, Ignasi; Guardiola Garcia, Marta (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Article
      Accés obert
      A system to integrate microwave imaging with optical colonoscopy is presented. The overarching goal is to improve the prevention and early diagnosis of one of the main health and economic burdens of an increasingly aging ...
    • Automotive radar and radome calibration to improve the direction of arrival detection performance 

      Buitrago Ventura, Santiago; Blanch Boris, Sebastián; Romeu Robert, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      An assessment of the improvement in the Direction of Arrival (DoA) measurements in automotive radar sensor by joint calibration of the radar sensor plus the radome is presented. Nowadays, radar sensors are calibrated before ...
    • Beamforming antennas for 60 GHz positioning systems 

      Toda, Annapapió; Romeu Robert, Jordi; Jofre Roca, Lluís; de Flaviis, Franco (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper we analyze the benefit of using phased arrays as the receiving antennas of indoor location systems. A 60 GHz code division multiple access carrier-based ultra-wide band positioning system for the simultaneous ...
    • Break point analysis and modelling in subway tunnels 

      Alonso, Javier; Izquierdo Fernandez, Benjamin; Romeu Robert, Jordi (2009)
      Text en actes de congrés
      Accés obert
      The time constraints in network developments inside tunnels require a characterisation of canonical tunnels in terms of propagation path losses and developing a slope model which is usually represented as a two slope ...
    • 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
      Accés obert
      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 ...
    • Caracterizacion polarimetrica de blancos radar 

      Romeu Robert, Jordi; Blanch Boris, Sebastián (Universidad de Málaga, 1992)
      Text en actes de congrés
      Accés obert
    • Caracterización de antenas mediante termografías de infrarrojos 

      González Arbesú, José María; Romeu Robert, Jordi (1998)
      Text en actes de congrés
      Accés obert
    • Channel matrix characterization in MIMO scenario through impedance modulation 

      Monsalve Carcelen, Beatriz; Romeu Robert, Jordi; Blanch Boris, Sebastián (2010)
      Text en actes de congrés
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      In this paper a new measurement setup to obtain the characteristic channel matrix of a MIMO radio system is presented using a small and non intrusive device able to characterize two antennas and therefore obtaining the ...
    • Characterization of a 94 GHz radiometric imager with mechanical beam-scanning 

      Nova, Enrique; Abril, Jordi; Romeu Robert, Jordi; Broquetas Ibars, Antoni; Torres Torres, Francisco; Jofre Roca, Lluís (IEEE, 2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper presents the characterization in terms of spatial resolution and radiometric sensitivity of a W-band Total Power Radiometer (TPR). The TPR is based on a heterodyne receiver with 64 dB of gain and 6.5 dB of noise ...
    • Characterization of pharmaceuticals using Terahertz Time Domain spectral-tomography 

      Nova Lavado, Enrique; Roqueta Crusats, Gemma; Romeu Robert, Jordi; Jofre Roca, Lluís (IEEE, 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper a Terahertz T ime-Domain measurement system has been used to perform Tomographic imaging of pharmaceutical compounds with coating. Measurements on paracetamol and ibuprofene samples are done both in ...
    • 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)
      Text en actes de congrés
      Accés obert
      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 ...
    • Collimated beam FMCW radar for vital sign patient monitoring 

      Prat, Arnau; Blanch Boris, Sebastián; Aguasca Solé, Alberto; Romeu Robert, Jordi; Broquetas Ibars, Antoni (2018-12-18)
      Article
      Accés obert
      Patient monitoring of vital signals such as breathing rhythm and heart beat rate can be done remotely by the use of a radar system. This approach is advantageous since it does not require any contact with the patient. ...
    • Comments on "On the relationship between fractal dimension and the performance of multi-resonant dipole antennas using Koch curves" 

      González Arbesú, José María; Rius Casals, Juan Manuel; Romeu Robert, Jordi (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2004-06-30)
      Working paper
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      Comentaris referits a l'article següent: K. J. Vinoy, J. K. Abraham, and V. K. Varadan, “On the relationship between fractal dimension and the performance of multi-resonant dipole antennas using Koch curves,” IEEE ...
    • Comparative efficiency and power assessment of optical photoconductive material-based terahertz sources for wireless communication systems 

      Yazgan, Ayhan; Jofre Roca, Lluís; Romeu Robert, Jordi (2019-01-01)
      Article
      Accés obert
      Terahertz band has recently attracted the attention of the communication society due to its huge bandwidth and very high-speed wireless communications capability. It has been utilized in a variety of disciplines including ...
    • Comprobación del comportamiento autosimilar de las distribuciones de corriente sobre la superficie de la antena fractal de Sierpinski mediante termografías de infrarrojos 

      González Arbesú, José María; Puente Baliarda, Carles; Romeu Robert, Jordi (1998)
      Text en actes de congrés
      Accés obert
    • Correlation techniques applied to antenna pattern measurement 

      Leather, P. S. H.; Parsons, J. D.; Romeu Robert, Jordi; Blanch Boris, Sebastián; Aguasca Solé, Alberto (2004-05-31)
      Article
      Accés obert
      A correlation processor based on the excellent periodic autocorrelation properties of maximal-length pseudorandom binary sequences has been used in antenna pattern measurements to resolve the direct (wanted) path from ...
    • Creació de recursos en línea per a l’autoaprenentage, foment de l’esperit crític i emprenedor i formació d’un comité d’avaluació externa en el màster MERIT 

      Pradell i Cara, Lluís; Cabrera-Bean, Margarita; Canal Bienzobas, Fernando; Cardama Aznar, Ángel; Gasull Llampallas, Antoni; González Arbesú, José María; Giró Nieto, Xavier; Heldring, Alexander; Herranz Luis, Jaime; Jofre Roca, Lluís; Mallorquí Franquet, Jordi Joan; Nadeu Camprubí, Climent; Olmos Bonafé, Juan José; Romeu Robert, Jordi; Rius Casals, Juan Manuel; Torres Torres, Francisco; Úbeda Farré, Eduard; Coderch Collell, Marcel; Kerans, Mary Ellen; Ros Giralt, Jordi; García, Antonio; González Font, Blanca; Guardiola Garcia, Marta; Hernández, Antoni; Melgarejo, Natali; Mestres, Albert (2009-02-12T10:25:51Z)
      Comunicació de congrés / Text en actes de congrés
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      El projecte es desenvolupa en el marc de la titulació oficial de màster MERIT del Departament de Teoria del Senyal i Comunicacions. El màster, orientat a la recerca i integrat dins del programa Erasmus Mundus, presenta ...
    • Curved boundary integral method for electromagnetic fields 

      Lamberg, Joel; Zarrinkhat, Faezeh; Tamminen, Aleksi; Ala-Laurinaho, Juha; Rius Casals, Juan Manuel; Romeu Robert, Jordi; Khaled, Elsayed; Taylor, Zachary (Optical Society of American (OSA), 2023-12-11)
      Article
      Accés obert
      The angular spectrum method is a rigorous method to synthesize near and far-field electromagnetic beams from planar field distributions. However, this limitation of planar surfaces has restricted its applicability to beams ...