Exploració per autor "Romeu Robert, Jordi"
Ara es mostren els items 88-107 de 248
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Effect of random errors in antenna cylindrical near-field measurements
Romeu Robert, Jordi; Jofre Roca, Lluís (Institution of Electrical Engineers, 1991-02)
Article
Accés obertA closed expression for the autocorrelation of the far field noise due to random near field noise in a cylindrical near to far field transformation is derived. This expression is employed to obtain bounds for the computed ... -
Effect of random errors in cylindrical
Romeu Robert, Jordi; Jofre Roca, Lluís (. 1991 IEEE AP-S INTERNATIONAL SYMPOSIUM, 1991)
Text en actes de congrés
Accés obertExpressions have been derived previously to predict the effect of random errors in planar near-field measurements. Similar equations for cylindrical near-field measurements are not available. Random errors are due to A/D ... -
Efficient parametric characterization of the dynamic performance of an RFID IC
Capdevila Cascante, Santiago; Jofre Roca, Lluís; Romeu Robert, Jordi; Bolomey, J.Ch (2012)
Article
Accés restringit per política de l'editorialIn this letter, a measurement technique for a complete parametric characterization of the input impedance of an RFID IC is presented. The use of an SPDT switch to modulate the signal from the network analyzer provides ... -
El "Espacio Innovador" y la red
Jofre Roca, Lluís; Solé Parellada, Francesc; Sabaté i Garriga, Ferran; Berenguer Sau, Jordi; Marqués Acosta, Fernando; Romeu Robert, Jordi; Torres Viñals, Jordi (Cátedra Telefónica-UPC, 2005-11)
Llibre
Accés obert -
El 'Espacio Profesional' y la red, más allá del 2005
Jofre Roca, Lluís; Solé Parellada, Francesc; Sabaté i Garriga, Ferran; Ezquerra, Norberto; Romeu Robert, Jordi; Torres Viñals, Jordi (Càtedra Telefónica-UPC: Especialización Tecnológica y Sociedad del Conocimiento, 2003-08)
Llibre
Accés obert -
El 'Profesional Innovador' y la red
Jofre Roca, Lluís; Solé Parellada, Francesc; Sabaté i Garriga, Ferran; Marqués Acosta, Fernando; Romeu Robert, Jordi; Torres Viñals, Jordi (Cátedra Telefónica-UPC, 2004-12)
Llibre
Accés obert -
Electromagnetic modeling and characterization of steel fiber reinforced concrete during the pouring process
Roqueta Crusats, Gemma; Romeu Robert, Jordi; Jofre Roca, Lluís (IEEE Press. Institute of Electrical and Electronics Engineers, 2009-06)
Text en actes de congrés
Accés obertIn this paper, a complex electromagnetical model for the SFRC is derived, and a mathematical model for the obtention of the effective relative permittivity is described. A static analysis setup is presented and results ... -
Electromagnetic monitoring of biological microorganisms
Zarrinkhat, Faezeh; Garrido, Alejandra; Jofre Roca, Lluís; Romeu Robert, Jordi; Rius Casals, Juan Manuel (Institute of Electrical and Electronics Engineers (IEEE), 2019)
Comunicació de congrés
Accés restringit per política de l'editorialThe investigation of the electromagnetic properties of biological cells in the microwave frequencies may enable wireless monitoring of functional activity of microorganisms. Both theoretical and experimental methodologies ... -
Enhancing RFID sensing capabilities: multi-load backscattering
Capdevila Cascante, Santiago; Jofre Roca, Lluís; Romeu Robert, Jordi; Bolomey, Jean Charles (2013)
Text en actes de congrés
Accés restringit per política de l'editorialThis conference paper presents some experimental results using the concept of an multi-loaded enhanced RFID tag capable of switching between different loads to fully determine the input impedance of the RFID tag antenna ... -
Error Bounds Due to Random Noise in Cylindrical Near-Field Measurements
Romeu Robert, Jordi; Jofre Roca, Lluís (1991)
Text en actes de congrés
Accés obertThe far field errors due to near field random noise are statistically bounded when performing cylindrical near to far field transform. In this communication, the far field noise variance it is expressed as a function of ... -
Error vector magnitude, intermodulation and radiation characteristics of a bandwidth and pattern reconfigurable antenna
Towfiq, Asaduzzaman; Khalat, Abdurazag Mohamed; Blanch Boris, Sebastián; Romeu Robert, Jordi; Jofre Roca, Lluís; Cetiner, Bedri Artug (2019-10)
Article
Accés obertThis letter presents the error vector magnitude (EVM), intermodulation (IM), and radiation performances of a reconfigurable antenna capable of varying its bandwidth between 3.4-3.6 and 3.1-3.9 GHz bands, and steering its ... -
Errores de posicionado y degradacion de la onda plana sintetizada en medidas de campo próximo
Pujolar, Xavier; Romeu Robert, Jordi (1991)
Text en actes de congrés
Accés obertPositioning errors are an importan! so urce of error in near field measurements. So far there are not expressions available that relate a given positioning error to the far field error. In this communication the cylindrical ... -
EuCAP 2010: Not raking over the ashes
Roqueta Crusats, Gemma; Jofre Cruanyes, Lluís; Sierra, M.; Romeu Robert, Jordi (Escola Tècnica Superior d'Enginyers de Telecomunicació de Barcelona, 2011)
Article
Accés obert -
Exact representation of antenna system diversity performance from input parameter description
Blanch Boris, Sebastián; Romeu Robert, Jordi; Corbella Sanahuja, Ignasi (2003-05-31)
Article
Accés obertA simplc formulation Io compute thc envelope correlation of an antenna divemiry system is dcrired. 11 is shown how to compute the envelope correlation hom the S-parameter descnplian of the antenna system. This approach ... -
Examen Final
Rius Casals, Juan Manuel; Romeu Robert, Jordi (Universitat Politècnica de Catalunya, 2014-01-20)
Examen
Accés restringit a la comunitat UPC -
Examen Final
Romeu Robert, Jordi; Aguasca Solé, Alberto (Universitat Politècnica de Catalunya, 2014-06-25)
Examen
Accés restringit a la comunitat UPC -
Experimental exploration of longitudinal modes in spherical shells at 220 GHz – 330 GHz: applications to corneal sensing
Zarrinkhat, Faezeh; Lamberg, Joel; Baggio, Mariangela; Tamminen, Aleksi; Ala-Laurinaho, Juha; Khaled, Elsayed E. M.; Rius Casals, Juan Manuel; Romeu Robert, Jordi; Taylor, Zachary (Institute of Electrical and Electronics Engineers (IEEE), 2021)
Text en actes de congrés
Accés restringit per política de l'editorialSubmillimeter-wave and THz sensing of cornea leverage the layered tissue structure for assessments of corneal water content and thickness. The cornea is bounded by air on the anterior and an optically thick body of water ... -
Experimental verification of dielectric models with a capacitive wheatstone bridge biosensor for living cells: E. coli
Zarrinkhat, Faezeh; Jofre Cruanyes, Marc; Jofre Roca, Lluís; Rius Casals, Juan Manuel; Romeu Robert, Jordi (Multidisciplinary Digital Publishing Institute (MDPI), 2022-03-23)
Article
Accés obertDetection of bioparticles is of great importance in electrophoresis, identification of biomass sources, food and water safety, and other areas. It requires a proper model to describe bioparticles’ electromagnetic ... -
Fabrication and measurement of homemade standard antennas
Guardiola Garcia, Marta; Monsalve Carcelen, Beatriz; Calafell Rueda, Irena; Roqueta Crusats, Gemma; Romeu Robert, Jordi (2012)
Article
Accés restringit per política de l'editorialApprenticeship is linked to training. This paper is intended to be a tutorial on how to design, fabricate, and measure antennas in an economical and easy way, using recycled materials and common electronic devices such ... -
Far-field errors due to random noise in cylindrical near-field measurements
Romeu Robert, Jordi; Jofre Roca, Lluís; Cardama Aznar, Ángel (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1992-01-31)
Article
Accés obertA full characterization of the far-field noise obtained from cylindrical near-field to far-field transformation, for a white Gaussian, space stationary, near-field noise is derived. A possible source for such noise is the ...