Browsing by Subject "Electromagnetism"

Now showing items 1-20 of 110

  • 60GHz material characterization and waveguide antenna array design 

    Papio Toda, Anna (Universitat Politècnica de Catalunya, 2009-01-08)
    Master thesis (pre-Bologna period)
    Open Access
    Cálculo de la permitividad compleja de materiales usados en PCB y diseño de una agrupación de antenas para la banda de 60GHz.

  • A comparison of analytical models for resonant inductive coupling wireless power transfer 

    Bou Balust, Elisenda; Alarcón Cot, Eduardo José; Gutiérrez Cabello, Jordi (The Electromagnetics Academy, 2012)
    Conference report
    Open Access
    Recent research in wireless power transfer (WPT) using resonant inductive coupling has demonstrated very high e±ciencies (above 40%) at large distances compared to the antenna dimensions, which has exponentially increased ...

  • A conceptual discussion on electromagnetic units - Extending mechanical units towards a global system of units 

    Jaen Herbera, Javier; Bohigas Janoher, Xavier; Pejuan Alcobé, Arcadi (2014-05)
    Article
    Restricted access - publisher's policy
    A comparative review of the different systems of units that are most usual in electromagnetism leads to the proposal of a new system of units. In this system, the gravitational constant acquires the role of an interaction ...

  • Adapted ACA algorithm with improved efficiency and compression rate 

    Heldring, Alexander; Úbeda Farré, Eduard; Rius Casals, Juan Manuel (2015)
    Conference report
    Open Access
    This contribution proposes an adapted version of the popular Adaptive Cross Approximation algorithm for block wise compression of Method of Moments impedance matrices. The estimation of the matrix block ...

  • Adjoint-based PDE-constrained optimization using HPC techniques 

    Peredo Andrade, Oscar Francisco (Universitat Politècnica de Catalunya, 2013-10-02)
    Master thesis
    Open Access
    This work focuses in the utilization of current HPC technologies to explore mathematical optimization algorithms in which a PDE acts as main constraint. A development framework is proposed, together with a novel application ...

  • A hybrid modal-boundary element method for electromagnetic scattering from arbitrary conducting wedges 

    Cruellas Ibarz, Juan Carlos; Ferrando Bataller, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 1990)
    Conference report
    Open Access
    A hybrid technique is used to determine the electromagnetic scattering contribution of arbitrary conducting wedges in electrically large objects. The boundary integral equation is discretized in a fictitious contour, and ...

  • ALBA synchrotron cooling system evaluation using flowmaster® 

    Quispe, Marcos; Escaler Puigoriol, Francesc Xavier; Prieto, Montserrat; Kjeldsen, Morten (2015-06-22)
    Article
    Open Access
    ALBA is a 3rd generation Synchrotron Light facility in Barcelona, Spain. Made up of a complex network of electron accelerators that produce synchrotron light, it allows for the visualization of the atomic structure of ...

  • Análisis de reflexiones múltiples entre superficies curvas mediante técnicas espectrales 

    Boria Esbert, Vicente; Ferrando Bataller, Miquel (1994)
    Conference report
    Open Access
    This paper analyzes the reflected fields produced by parabolic and hyperbolic surfaces when an electromagnetic field falls into them. Multireflector antennas, which are integrated by such reflecting surfaces, are studied ...

  • An alternative method to quantify the electromagnetic immunity based on the Weibull distribution 

    Fernández García, Raúl; Gil Galí, Ignacio (2013)
    Article
    Open Access
    It is accepted that the electromagnetic interference should be addressed with statistical analysis. Usually the impact of electromagnetic interference on different electronic samples is evaluated and the average immunity ...

  • Analysis of multireflector antenna clusters by spectral methods 

    Boria Esbert, Vicente; Ferrando Bataller, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 1994)
    Conference report
    Open Access
    This paper analyzes multireflector antennas making use of spectral domain techniques. The behaviour of the multireflector antenna is determined by means of a transference function that relates the plane wave spectrum of ...

  • Analysis of PIFA antenna coupling in nearby traces and reduction with CSRRs in PCB at 2.45 GHz 

    Gil Galí, Ignacio; Fernández García, Raúl (Institute of Electrical and Electronics Engineers (IEEE), 2015)
    Conference report
    Open Access
    The electromagnetic coupling of a conventional planar inverted-F antenna (PIFA) antenna in the nearby layout traces is investigated in the 2.45 GHz industrial, scientific and medical radio band. The impact of a complementary ...

  • Analysis of pre-processing techniques when using validation methods in computational electromagnetic simulations 

    Jauregui Tellería, Ricardo; Ventosa Llopart, Oriol; Silva Martínez, Fernando; Kunze, Marco (2013-05)
    Article
    Restricted access - publisher's policy
    In computational electromagnetic simulations, most validation methods have been developed to quantify the similarity of two datasets, making them an objective tool for test engineers to discuss data on a similar basis. ...

  • A new hybrid mode-matching method for the analysis of inductive obstacles and discontinuities 

    Boria Esbert, Vicente; Ferrando Bataller, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 1999)
    Conference report
    Open Access
    A new and efficient hybrid mode-matching method for the analysis of arbitrarily shaped inductive obstacles and discontinuities is presented. An open-space spectral method is used to model the electrical behavior of the ...

  • An interpolation method to calibrate electromagnetic probes in semi-anechoic chambers 

    Tremola, Ciro; Azpúrua Auyanet, Barón Marco Aurelio; Páez, Eduardo Javier; Ormeño, D.; Rebolledo, A. (2012)
    Article
    Restricted access - publisher's policy
    Based upon the standard IEEE 1309, a new calibration method for electromagnetic (EM) probes is proposed. The aforementioned method compares the electric field strength measured with the EM probe subject to calibration with ...

  • A nodal-based finite element approximation of the Maxwell problem suitable for singular solutions 

    Badia, Santiago; Codina, Ramon (2009-11-17)
    Article
    Open Access
    A new mixed finite element approximation of Maxwell’s problem is proposed, its main features being that it is based on a novel augmented formulation of the continuous problem and the introduction of a mesh dependent ...

  • An optimum method to design probe-fed single-layer single-path wideband microstrip antenna 

    Anguera Pros, Jaume; Puente Baliarda, Carles; Romeu Robert, Jordi; Borja, C.; Font, Gisela (European Space Agency (ESA), 2000)
    Conference report
    Restricted access - publisher's policy
    A simple electrical network for a Single Layer Microstrip Patch Antenna (SLMPA) and the feeding structure (coaxial probe and compensating capacitor) is proposed to predict the input impedance. The mathematical analysis ...

  • A Novel Type of Hybrid Reluctance Motor Drive 

    Andrada Gascón, Pedro; Blanqué Molina, Balduino; Martínez Piera, Eusebio; Torrent Burgués, Marcel (Institute of Electrical and Electronics Engineers (IEEE), 2014-08-01)
    Article
    Restricted access - publisher's policy
    In this paper, a novel type of hybrid reluctance motor (HRM) drive is presented. This new motor is characterized by a stator formed by a combination of independent magnetic structures, each one composed of an electromagnet, ...

  • Antenna microstrip miniatura y de alta directividad basada en el fractal de Sierpinski 

    Puente Baliarda, Carles; Borja Borau, M. Carmen; Anguera Pros, Jaume (Unión Científica Internacional de Radio (URSI), 2011)
    Conference report
    Restricted access - publisher's policy
    he unique geometrical properties of fractals have been proven to be useful to design advanced antennas. Enhanced performance in terms of size, gain or multifre- quency behaviour is observed in fractal-shaped antennas. Here, ...

  • Aplicación de algortimos gráfico de iluminación global al cálculo de interacción electromagnética entre superficies metálicas 

    Vall-Llossera Ferran, Mercedes Magdalena; Rius Casals, Juan Manuel; Ferrando Bataller, Miquel (Unión Científica Internacional de Radio (URSI), 1990)
    Conference report
    Open Access

  • A polarimetric ultra-wide band field scatterometer 

    Broquetas Ibars, Antoni; Fabregas Canovas, Francisco Javier (Institute of Electrical and Electronics Engineers (IEEE), 1995)
    Conference report
    Open Access
    “TERESA” (Terrestrial Radar Equipment for Scattering Analysis) is a ground-based, fully polarimetric scatterometer operative in the S, C, X, and Ku bands. It has been designed to obtain the complete backscattering matrix ...