Browsing by Subject "Electromagnetic fields"

Now showing items 1-20 of 35

  • Adaptive hysteresis band current control for transformerless single-phase PV inverters 

    Vázquez Guzmán, Gerardo; Rodríguez Cortés, Pedro; Ordoñez, Rafael; Kerekes, Tamas; Teodorescu, Remus (2009)
    Conference report
    Open Access
    Current control based on hysteresis algorithms are widely used in different applications, such as motion control, active filtering or active/reactive power delivery control in distributed generation systems. The hysteresis ...

  • Algoritmo de detección de visibilidad de facetas para el cálculo de la Sección Recta Radar 

    Carbó Meseguer, Alexis (Universitat Politècnica de Catalunya, 2013-06-17)
    Master thesis (pre-Bologna period)
    Open Access
    [ANGLÈS] In this project, a new algorithm for computing the Physical Optics of a radar target has been developed to be implementated in GRECO. This is a software package for calculating the Radar Cross Section. It includes ...

  • Aliasing of the Schumann resonance background signal by sprite-associated Q-bursts 

    Guha, Anirban; Williams, Earle R.; Boldi, Robert; Satori, Gabriella; Nagy, Tamás; Bór, József; Montañá Puig, Juan; Ortega, Pascal (2017-12)
    Article
    Open Access
    The Earth's naturally occurring Schumann resonances (SR) are composed of a quasi-continuous background component and a larger-amplitude, short-duration transient component, otherwise called ‘Q-burst’ (Ogawa et al., 1967). ...

  • 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 ...

  • Cálculo del campo difractado por objetos cilíndricos metálicos o multidieléctricos al incidir sobre ellos una onda 

    Ferrando Bataller, Miquel; Jofre Roca, Lluís (Consejo Superior de Investigaciones Científicas (CSIC), 1986)
    Conference report
    Open Access
    A method is described for calculating the scattered fields from conducting bodies and concentric multilayered cylinders, when they are illuminated by a wave with no z-axis variation. The method is based upon descomposition ...

  • Circuital analysis of a two-port angular sector 

    Ferrando Bataller, Miquel (Institute of Electrical and Electronics Engineers (IEEE), 1999)
    Conference report
    Open Access
    The authors introduce an element that allows them to analyze two-dimensional diffraction problems in a circuital way. The circuital analysis of electromagnetic problems, together to the segmentation technique, allows one ...

  • Closed-loop control of magnetic fields for atomic physics experiments 

    Luan, Jie (Universitat Politècnica de Catalunya, 2017-09-08)
    Master thesis
    Open Access
    This project explores the control of magnetic fields through active feedback, ultimately bringing the magnetic field noise level below the required threshold, for one single axis. An absolute stability of less than 400 uG ...

  • Conductive plate to improve the protection of the building’s occupants from radiation and environmental electromagnetic fields 

    Franco González, Fidel (2017)
    Conference lecture
    Restricted access - publisher's policy
    The current buildings have problems that affect the health of the occupants. Inside there are electromagnetic fields produced by the network cabling, microwave fields of the WI-FI, fields produced by terrestrial storms, ...

  • Una década de teledetección en el Grupo de Ingeniería Electromagnética y Fotónica 

    Camps Carmona, Adriano José; Vall-Llossera Ferran, Mercedes Magdalena; Mallorquí Franquet, Jordi Joan; Rocadenbosch Burillo, Francisco (2003-04-30)
    Article
    Open Access

  • Desarrollo software e integración de un subsistema de medidas magnéticas para cubesat 

    Sànchez Mínguez, Rubén (Universitat Politècnica de Catalunya, 2015-07)
    Bachelor thesis
    Open Access
    The purpose of this project consists on the integration of a measuring subsystem for a cubesat payload in which involves the development of the circuit control software, the flight model physical implementation as well as ...

  • Design and construction of a 3D Helmholtz coil system for the ALBA magnetic measurements laboratory 

    Fontanet Valls, Andrea del Carme (Universitat Politècnica de Catalunya, 2019-06)
    Bachelor thesis
    Open Access
    Covenantee:  Sincrotró ALBA
    3D Hall probes designed and produced by ALBA Synchrotron are currently being used at ALBA magnetic measurements laboratory to carry out accurate magnetic characterization of magnets and insertion devices. In order to ...

  • Design of planar probes for stent monitoring 

    Amorós García de Valdecasas, Susana (Universitat Politècnica de Catalunya, 2016-07-28)
    Master thesis (pre-Bologna period)
    Restricted access - confidentiality agreement

  • Detector de capacidad parásita sonoro 

    Molina Rodríguez, Cristian (Universitat Politècnica de Catalunya, 2016)
    Master thesis (pre-Bologna period)
    Open Access

  • Disseny i construcció de bobines de mida arbitrària de camp magnètic conformable 

    Sánchez Moragues, Miguel Ángel (Universitat Politècnica de Catalunya, 2010)
    Master thesis (pre-Bologna period)
    Open Access
    En aquest projecte es desenvolupen metodes per conformar un camp magnètic dins l'interior de bobines de mida arbitrària. Aplicació a la mesura de la concentració de provetes de formigó refoçades amb fibres d'acer.

  • Electromagnetic radiation of simulated mid-gap streamers 

    Montañá Puig, Juan; Fabró Tàpia, Ferran (Zakon Group, 2016)
    Conference report
    Open Access
    Electromagnetic field from simulated double-headed mid-gap streamers is computed. The effect of the applied electric field is studied by considering electric fields higher than the conventional breakdown threshold ...

  • Estudi i disseny de detector de camp electromagnètic wearable 

    Benítez Balañà, Ricard (Universitat Politècnica de Catalunya, 2019-06-10)
    Bachelor thesis
    Open Access
    Es desenvoluparà el disseny i estudi d'un detector de camp electromagnètic totalment integrat en roba mitjançant plataforma Adafruit i antena bordada

  • Full wave analysis of the image hybrid dielectric/HTS resonator 

    Sans, C; O'Callaghan Castellà, Juan Manuel; Sancho, D; Pous Andrés, Rafael; Fontcuberta, J; Ji-Fuh, Liang; Guo-Chun, Liang (Institution of Electrical Engineers, 1997-06)
    Article
    Open Access
    An analysis of the image hybrid dielectric/HTS resonator is carried out. A full-wave radial mode-matching method is used to obtain the electromagnetic fields inside the resonator for single TE01 and dual HE11 modes. The ...

  • Generalization of the equivalence between physical optics and aperture integration for radiation from open-ended structures 

    Rius Casals, Juan Manuel; Michalski, Krzysztof A. (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2002-06-30)
    Article
    Open Access
    The theorem of equivalence between the Kirchhoff aperture integration (AI) and the physical optics (PO) approach applied to the interior walls of a open-ended waveguide is generalized to the case of any open-ended structure (OES).

  • Infrared thermograms applied to near-field testing 

    González Arbesú, José María; Aguasca Solé, Alberto; Romeu Robert, Jordi (IEE-INST ELEC ENG, 1999-05-31)
    Article
    Open Access
    Electromagnetic fields close to radiant structures can be measured quickly using an infrared camera. Examples of induced fields by wire antennas over a detection screen at distances shorter than one wavelength are presented. ...

  • 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
    Open Access
    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 ...