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Ara es mostren els items 51-63 de 63

    • Planar array diagnostic from cylindrical near-field measurements 

      Romeu Robert, Jordi; Blanch Boris, Sebastián; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 1990)
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    • Projecte CLEAR: Collaborative Learning on ECTS Array Resolution 

      Anton, Mireia; Romeu Robert, Jordi; Jofre Roca, Lluís; Blanch Boris, Sebastián; Gonzalez, J.M.; Cardama Aznar, Ángel; Rius Casals, Juan Manuel (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2005-02)
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      El Projecte CLEAR s’emmarca en el procés de desenvolupament del mòdul d’aprenentatge interactiu “Array Antennas” en el context de l’assignatura d’Antenes de l’Escola Tècnica Superior Enginyeria de Telecomunicació ...

    • Pulsar navigation 

      Sala Álvarez, José; Urruela Planas, Andreu; Villares Piera, Nemesio Javier; Romeu Robert, Jordi; Blanch Boris, Sebastián; Estalella Boadella, Robert; Paredes, J. M. (European Space Agency (ESA), 2008-12-31)
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      This paper evaluates the fundamental performance bounds, signal processing and technological complexity associated with the synchronization to radio and X-ray pulsars as well as its impact on the positioning accuracy of ...

    • Reconfigurable dual-polarized beam-steering broadband antenna using a crossed-strips geometry 

      Ramírez Arroyave, Germán Augusto; Zhou, Ivan; Blanch Boris, Sebastián; Towfiq, Asaduzzaman; Cetiner, Bedri Artug; Romeu Robert, Jordi; Jofre Roca, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2021-08)
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      In this letter, a reconfigurable dual-polarized broadband antenna with beam-steering capabilities using a parasitic layer is proposed for 5G new radio (NR) frequency range 1 (FR-1) applications. The antenna is a dual-port ...

    • RFID based probes for EM-field measurements 

      Capdevila Cascante, Santiago; Massud, Muhammad; Serrano, Raquel; Aguasca Solé, Alberto; Blanch Boris, Sebastián; Romeu Robert, Jordi; Bolomey, J.Ch; Jofre Roca, Lluís (IEEE Press. Institute of Electrical and Electronics Engineers, 2009)
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      In this paper the use of RFID for EM field measurement is studied. A novel RFID antenna with high tuning capabilities is presented and measured, and it is used in combination with several RFID IC to measure the EM ...

    • Self-similar prefractal frequency selective surfaces for multiband and dual-polarized applications 

      Gianvittorio, John P.; Romeu Robert, Jordi; Blanch Boris, Sebastián; Rahmat-Samii, Yahya (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2003-01-31)
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      Frequency-selective surfaces (FSS) that have been designed using the iterative techniques of fractals have been fabricated and measured. Fractals contain many scales of the starting geometry, each of which acts as a ...

    • Sensitivity study of the microwave spiralimetric imaging 

      Jofre Roca, Lluís; Blanch Boris, Sebastián; Cardama Aznar, Ángel; Rius Casals, Juan Manuel; Torner Sabata, Lluís (Institute of Electrical and Electronics Engineers (IEEE), 2005)
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      The use of the spiral modes-electromagnetically related to the orbital momentum of the photons- at microwave frequencies for imaging purposes is studied and some preliminary numerical and experimental results for basic ...

    • Sistema de adquisición y procesado de datos en campo próximo esférico 

      González Arbesú, José María; Blanch Boris, Sebastián (1991)
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      Near field antenna measurements supply e qua! or more accurate results than far field measurements, its main dijficulty is the post processing of the data measured in the anechoic chamber. In this paper we show a measurement ...

    • Small UAV radiocommunication channel characterization 

      Romeu Robert, Jordi; Aguasca Solé, Alberto; Alonso Valdesueiro, Javier; Blanch Boris, Sebastián; Martins, Ricardo (2010)
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      Small Unmanned Aerial Vehicles (UAV) are finding different applications as platforms to carry observation payloads. The need to establish reliable high data rate channels requires to characterize the radiocommunication ...

    • 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)
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      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 ...

    • Three-Dimensional beamsteering low complexity reconfigurable multilevel antenna 

      Zhou, Ivan; Ramírez Arroyave, Germán Augusto; Montero Bayo, Luca; Blanch Boris, Sebastián; Romeu Robert, Jordi; Jofre Roca, Lluís (2020-04)
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      A low-complexity reconfigurable antenna (RA) capable of steering its beam into nine different directions corresponding to ¿={-42°,0°,42°} in the ¿={25°,0°,155°} planes, and ¿=±25° in the ¿=90° plane, using a reduced number ...

    • Toward 3D UWB tomographie imaging system for breast tumor detection 

      Guardiola Garcia, Marta; Jofre Roca, Lluís; Capdevila Cascante, Santiago; Blanch Boris, Sebastián; Romeu Robert, Jordi (2010)
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      A novel 3D tomographic algorithm for short range cylindrical geometries using UWB frequency range is presented. The algorithm has been applied to breast tumor detection, nevertheless, its non application-specific character ...

    • UWB High-contrast robust tomographic imaging for medical applications 

      Guardiola Garcia, Marta; Capdevila Cascante, Santiago; Blanch Boris, Sebastián; Romeu Robert, Jordi; Jofre Roca, Lluís (2009)
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      In this paper a complete UWB Circular Tomographic System robust to high contrast or large objects, applied to Breast Tumor Detection, is presented. The main contribution of this paper is to focus on the implementation ...