Ara es mostren els items 21-40 de 82

    • Decomposition of electromagnetic interferences in the time-domain 

      Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Silva Martínez, Fernando (2016-01-26)
      Article
      Accés obert
      Electromagnetic interferences are potentially very complex signals formed by the superposition of transient (broadband) and continuous wave (narrowband) components with significant randomness in both amplitude and phase. ...
    • Design and validation of a test fixture for studying RF current flux through mechanical aircraft joints 

      Solé Lloveras, Jordi; Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Quílez Figuerola, Marcos; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Comunicació de congrés
      Accés obert
      The study of electric currents flowing through the airframe is important from an EMC standpoint due to the potential to cause severe aircraft failures. Nevertheless, this is a challenging task because of the complex shape, ...
    • Dynamic performance evaluation of full time domain EMI measurement systems 

      Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Fernández Chimeno, Mireya; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés obert
      This paper presents the evaluation of the performance of Full Time Domain Electromagnetic Interference measurement systems in terms of the noise figure, the linearity, the dynamic range, the voltage standing wave ratio and ...
    • Efficient in situ assessment of radiated emissions using time-domain measurements 

      Solé Lloveras, Jordi; Azpúrua Auyanet, Marco Aurelio; Aragon Homar, Marc; Yoshioka, Yasutoshi; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Text en actes de congrés
      Accés obert
      This paper presents three different case studies where the electromagnetic emissions of atypical equipment (a photovoltaic system, a passenger boarding bridge and a pallet washing machine) have been assessed in situ using ...
    • Electromagnetic characterization of 3D printed antennas employing conductive filament 

      Pous Solà, Marc; Azpúrua Auyanet, Marco Aurelio; Quílez Figuerola, Marcos; Mateu Mateus, Marc; Fernández Chimeno, Mireya; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This work presents the need to accurately define EM characterization of novel materials like the 3D conductive filament. Although these construction techniques and materials are currently used by the industry, the influence ...
    • Electromagnetic interference prediction in an in-house power-line 

      Samso, Margarita; Ribó, Miquel; Sanchez, Albert-Miquel; Regué, J.R.; Aragon Homar, Marc; Silva Martínez, Fernando (IEEE, 2012)
      Text en actes de congrés
      Accés obert
      Abstract —In this paper a new methodology for the prediction of the conducted-emission propagation in an in-house power- line network is presented. This methodology is based on the modal S -parameter characterization ...
    • EMC filter based on complementary split-ring resonators for audio applications 

      Gil Galí, Ignacio; Fernández García, Raúl; Pous Solà, Marc; Silva Martínez, Fernando (2009-11)
      Comunicació de congrés
      Accés obert
      Filters based on complementary split-ring resonators present a large notch attenuation at the resonant frequency. An application of these very low cost filters to an audio system interfered by a mobile phone is presented ...
    • EMC testing of electricity meters using real-world and artificial current waveforms 

      Van Den Brom, H.E.; ten Have, Bas; Hartman, Tom; Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Silva Martínez, Fernando; Leferink, F.; van Leeuwen, Ronald; Marais, Zander; Kok, Gertjan J. P.; van Veghel, Marijn G. A.; Kolevatov, Ilia; Malmbekk, Helge (2021)
      Article
      Accés obert
      In 2015, the energy measurement of some static electricity meters was found to be sensitive to specific conducted electromagnetic disturbances with very fast current changes caused by highly nonlinear loads, leading to ...
    • EMI radiated characterization of an hybrid bus 

      Pous Solà, Marc; Atienza Picola, Andreu; Silva Martínez, Fernando (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      In this paper, the electromagnetic emission measurements of an hybrid bus are presented. The measurements were carried out in different modes, i.e.: pulling away, running and braking. With the tests performed we analyze ...
    • Estimación y medida de campos electromagnéticos radiados por sistemas de cableado diferenciales. 

      Silva Martínez, Fernando (Universitat Politècnica de Catalunya, 1997-06-02)
      Tesi
      Accés obert
    • Estimation of static energy meter interference in waveforms obtained in on-site scenarios 

      ten Have, Bas; Azpúrua Auyanet, Marco Aurelio; Hartman, Tom; Pous Solà, Marc; Moonen, Niek; Silva Martínez, Fernando; Leferink, F. (2022-02)
      Article
      Accés obert
      Static energy meters have shown errors beyond the standards due to conducted electromagnetic interference of pulsed currents. This was observed in several case studies and confirmed by laboratory experiments, which showed ...
    • Ethernet 10GBASE-T common mode filter based on metamaterial 

      Pachon, Arturo; Silva Martínez, Fernando (2011)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A common mode filter design based on metamaterial structures is developed. Basic topology simulations and prototype measurements are presented and the specific application to an Ethernet LAN is analyzed.
    • Exploratory data analysis on stochastic emissions near-field scanning measurements 

      Oliva Sánchez, José Antonio; Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Silva Martínez, Fernando; Baharuddin, M.H.; Smartt, C.; Thomas, D.W.P (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Text en actes de congrés
      Accés obert
      Recently, near-field scanning techniques for measuring and analysing stochastic emissions have been theoretically and experimentally studied and they are promising in terms of the characterization and classification radiated ...
    • Factors influencing the successful validation of transient phenomenon modelling 

      Jauregui Tellería, Ricardo; Silva Martínez, Fernando; Orlandi, Antonio; Sasse, Hugh; Duffy, Alistair (IEEE Press. Institute of Electrical and Electronics Engineers, 2010)
      Text en actes de congrés
      Accés obert
      An increased requirement for validation of computational electromagnetic simulation and modelling through the publication of IEEE Standard 1597.1 brings to light some interesting issues surrounding the validation of ...
    • Fast and automated verification of multi-channel full time-domain EMI measurement systems 

      Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Silva Martínez, Fernando; Oliva Sánchez, José Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Text en actes de congrés
      Accés obert
      Recently, concern has been raised with regard to the adequacy of current verification practices carried out in electromagnetic compatibility (EMC) testing laboratories. Bridging the gap in the scope and reliability of the ...
    • Full Time Domain EMI Measurement system applied to Railway emissions according to IEC 62236-3-1/EN 50121-3-1 standards 

      Pous Solà, Marc; Azpúrua Auyanet, Marco Aurelio; Oliva Sánchez, José Antonio; Aragon Homar, Marc; González García, Iván; Silva Martínez, Fernando (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Comunicació de congrés
      Accés obert
      This paper studies the advantages of applying time-domain based instrumentation to conduct electromagnetic interference emissions from rolling-stock. In IEC 62236-3-1 or EN 50121-3-1 standards, it is mandatory to measure ...
    • Improved electromagnetic compatibility standards for the interconnected wireless world 

      Pous Solà, Marc; Azpúrua Auyanet, Marco Aurelio; Silva Martínez, Fernando (2019)
      Text en actes de congrés
      Accés obert
      The future is wireless, a world where everything is interconnected. However, the current standards for ensuring the electromagnetic compatibility (EMC) and the coexistence of such wireless systems urge for a major update. ...
    • Improving time-domain EMI measurements through digital signal processing 

      Azpúrua Auyanet, Marco Aurelio; Pous Solà, Marc; Cakir, S.; Silva Martínez, Fernando; Cetinta, M. (2015-07)
      Article
      Accés restringit per política de l'editorial
      This article is intended to provide a set of recommended practices for improving of the Time-Domain EMI measurement systems by means of digital signal processing. We have focused on two major aspects: the optimal configuration ...
    • Initial analysis of SAR from a cell phone inside a vehicle by numerical computation. 

      Anzaldi, Gabriel; Silva Martínez, Fernando; Fernández Chimeno, Mireya; Quílez Figuerola, Marcos; Riu Costa, Pere Joan (Institution of Electrical and Electronics Engineers, 2007-05-31)
      Article
      Accés obert
      The purpose of this paper is to analyze the influence of the metallic structures of a realistic car body frame on the specific absorption rate (SAR) produced by a cell phone when a complete human body model is placed at ...
    • Man-made noise in our living environments 

      Silva Martínez, Fernando; Leferink, Frank; Catrysse, Johan; Batterman, Sven; Beauvois, V; Roc'h, A (2010-09)
      Article
      Accés restringit per política de l'editorial
      The ITU’s (International Telecommunication Union’s) man-made noise levels are based on measurements performed in the 1970s. Some measurements have been carried out since then, showing that noise caused by automotive ...