Exploració per autor "Jofre Roca, Lluís"
Ara es mostren els items 67-86 de 258
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Creació de recursos en línea per a l’autoaprenentage, foment de l’esperit crític i emprenedor i formació d’un comité d’avaluació externa en el màster MERIT
(2009-02-12T10:25:51Z)
Comunicació de congrés / Text en actes de congrés
Accés obertEl projecte es desenvolupa en el marc de la titulació oficial de màster MERIT del Departament de Teoria del Senyal i Comunicacions. El màster, orientat a la recerca i integrat dins del programa Erasmus Mundus, presenta ... -
Cylindrical geometry: a further step in active microwave tomography
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1991-05-01)
Article
Accés obertA prototype imaging system for active microwave tomography using cylindrical geometry has been developed, making is possible to obtain images of the dielectric properties of biological targets at 2.45 GHz. The system ... -
Cylindrical geometry: a further step in active microwave tomography
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 1991-05-01)
Article
Accés obertA prototype imaging system for active microwave tomography using cylindrical geometry has been developed, making it possible to obtain images of the dielectric properties of biological targets at 2.45 GHz. This configuration ... -
Cylindrical microwave imaging system
(1988)
Text en actes de congrés
Accés obertA cylindrical system for microwave tomography working at 2.45 GHz has been presented. In this setup, the body, immersed in water, is illuminated with a cylindrical wave and the measured scattered fields are processed by ... -
Debye frequency-extended waveguide permittivity extraction for high complex permittivity materials. Concrete setting process characterization
(2019-12)
Article
Accés obertA waveguide with central frequency 868 MHz is used in transmission/reflection operation regime to accurately measure the behaviour of the complex permittivity of high complex permittivity granular materials and it has been ... -
Deforming and relief interferometric SAR imaging at W-band
(IEEE, 2011)
Text en actes de congrés
Accés restringit per política de l'editorialInterferometry at W Band can be exploited to form images of small deformations with precisions in the order of tenths of microns and retrieve surface relieves. An Interferometric Synthetic Aperture Radar setup is proposed ... -
Design and characterization of non-planar 3D-printed passive UHF-RFID tag
(Institute of Electrical and Electronics Engineers (IEEE), 2020)
Text en actes de congrés
Accés obertThis paper presents the design and preliminary characterization of a novel 3D passive UHF-RFID tag. The prototype is fabricated using additive manufacturing techniques: 3D printing and copper electroplating. The design, ... -
Design and performance evaluation of a dielectric flat lens antenna for millimeter-wave applications
(2015-01-01)
Article
Accés obertIn this letter, a practical fabrication of a novel inhomogeneous gradient-index dielectric flat lens for millimeter-wave applications is presented. A previous theoretical design of a dielectric flat lens composed of different ... -
Design and performance evaluation of a dielectric flat lens for millimeter-wave applications
(Institute of Electrical and Electronics Engineers (IEEE), 2014)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper, a practical fabrication of a dielectric flat lens for millimeter-wave applications is presented. A previous theoretical dielectric flat lens antenna design, consisting of a set of concentric rings with ... -
Design and performance evaluation of a switched-beam antenna array for 60 GHz WPAN applications
(Institute of Electrical and Electronics Engineers (IEEE), 2015)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper, the design and performance evaluation of a switched-beam antenna array to operate in the 60 GHz band for short-range WPAN applications is presented. In order to overcome the high path-loss attenuation at ... -
Design guidelines for a terahertz silicon micro-lens antenna
(2013-01-15)
Article
Accés restringit per política de l'editorialA silicon lens antenna suited for future integrated terahertz arrays has been proposed recently. The antenna consists of an extended hemispherical silicon lens fed by a leaky-wave waveguide feed. The primary advantage is ... -
Design of a dielectric flat lens antenna for 60 GHz WPAN applications
(Institute of Electrical and Electronics Engineers (IEEE), 2013)
Text en actes de congrés
Accés restringit per política de l'editorialIn this paper we present the design of a dielectric flat lens antenna to operate in the 60 GHz band for WPAN applications. In order to overcome the specific atmospheric attenuation, which characterizes the propagation in ... -
Design of minimum nonlinear distortion reconfigurable antennas for next-generation communication systems
(Multidisciplinary Digital Publishing Institute (MDPI), 2022-03-01)
Capítol de llibre
Accés obertNonlinear effects in the radio front-end can degrade communication quality and system performance. In this paper we present a new design technique for reconfigurable antennas that minimizes the nonlinear distortion and ... -
Design of minimum nonlinear distortion reconfigurable antennas for next-generation communication systems
(2021-04-01)
Article
Accés obertNonlinear effects in the radio front-end can degrade communication quality and system performance. In this paper we present a new design technique for reconfigurable antennas that minimizes the nonlinear distortion and ... -
Desplegament de recursos en línea per a l’avaluació i l’autoaprenentage dels alumnes, i foment de l’especialització i competències transversals en el màster MERIT
(Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2010-02-11)
Comunicació de congrés / Text en actes de congrés
Accés obertEl projecte es desenvolupa en el marc de la titulació oficial de màster MERIT del Departament de Teoria del Senyal i Comunicacions. El màster, orientat a la recerca i integrat dins del programa Erasmus Mundus, presenta ... -
Diagnóstico de antenas a partir de medidas en campo próximo cilíndrico
(Universidad Politécnica de Madrid (UPM), 1988)
Text en actes de congrés
Accés obertThe purpose of this study is to show the antenna imaging capabilities of a near field measurement system. From the antenna near field data, the aperture field is reconstructed in the first instance, and then the source ... -
Diagnóstico de arrays. Estudio comparativo entre campo próximo rectangular y cilíndrico
(Unión Científica Internacional de Radio (URSI), 1990)
Text en actes de congrés
Accés obert -
Dielectric flat lenses with cylindrically distributed parameters for millimeter-wave applications
(Institute of Electrical and Electronics Engineers (IEEE), 2016)
Text en actes de congrés
Accés restringit per política de l'editorialThe design and performance evaluation of an inhomogeneous dielectric flat lens with the effective relative permittivity cylindrically distributed is presented. In order to achieve high-data rate wireless communications for ... -
Direct connection of uni-traveling-carrier photodiodes to antennas for frequency reconfigurable fiber-radio transmission in the Ka band
(2024-07-01)
Article
Accés obertA compact photonically-driven wireless emitter based on a Uni-Traveling-Carrier photodiode (UTC-PD) which directly connects to a short asymmetrical inductive dipole (SAID) antenna is presented. The design exploits the ... -
Diseño de bocinas ridge conformadas usando el metodo incremental
(Universidad de Málaga, 1992)
Text en actes de congrés
Accés obert
