Listar Dpto. Ingeniería Eléctrica y Electrónica - Ingeniaritza Elektriko eta Elektronikoa Saila por título

Mostrando ítems 143-162 de 648

    • Detrimental effects in Brillouin distributed sensors caused by EDFA transient 

      Feng, Cheng; Iribas Pardo, Haritz Upna Orcid; Mariñelarena Ollacarizqueta, Jon Upna Orcid; Schneider, Thomas; Loayssa Lara, Alayn Upna Orcid (Optical Society of AmericaIEEE, 2017)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      We investigate the deleterious effect and the error in Brillouin optical time-domain analyzers induced by the combination of a low extinction ratio pulse generation with the transient behavior of erbium-doped fiber amplifiers.

    • Development of a low mobility IEEE 802.15.4 compliant VANET system for urban environments 

      Nazábal Urriza, Juan Antonio Upna; Falcone Lanas, Francisco Javier Upna Orcid; Fernández Valdivielso, Carlos Upna; Matías Maestro, Ignacio Upna Orcid (MDPI, 2013)   Artículo / Artikulua  OpenAccess
      The use of Vehicular Ad-Hoc Networks (VANETs) is growing nowadays and it includes both roadside-to-vehicle communication (RVC) and inter-vehicle communication (IVC). The purpose of VANETs is to exchange useful information ...

    • Development of advanced structures for optical fiber lasers and sensors 

      Rota Rodrigo, Sergio Upna (2015)   Tesis doctoral / Doktoretza tesia  OpenAccess
      Desde la irrupción de la fibra óptica en las telecomunicaciones, han surgido multitud de desarrollos basados en sus propiedades. Así, en las últimas décadas, la rápida evolución de los sistemas basados en fibra óptica, así ...

    • Development of an auto-calibrated receiver in planar technology at millimetre-wave frequencies 

      Rebollo Mugueta, Ainara Upna (2015)   Tesis doctoral / Doktoretza tesia  OpenAccess
      This dissertation deals with the development of an auto-calibrated receiver at W-band for Passive Millimetre-Wave imaging applications. The proposed receiver has three main characteristics. Firstly, its differential ...

    • Development of an in-fiber nanocavity towards detection of volatile organic gases 

      Elosúa Aguado, César Upna Orcid; Matías Maestro, Ignacio Upna Orcid; Bariáin Aisa, Cándido Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid (MDPI, 2006)   Artículo / Artikulua  OpenAccess
      A fiber optic sensor for Volatile Organic Compounds (VOCs) detection has been developed and characterized for some organic gasses. The sensor is based on a novel vapochromic material, which is able to change its optical ...

    • Development of an optical refractometer by analysis of one-dimensional photonic bandgap structures with defects 

      Matías Maestro, Ignacio Upna Orcid; Del Villar, Ignacio Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid (Optical Society of America, 2003)   Artículo / Artikulua  OpenAccess
      A theoretical analysis of an optical fiber photonic-bandgap-based refractometer is presented. The design is based on a quarter-wave ref lector with one defect. By modifying both the real and the imaginary parts of the index ...

    • Development of optical fiber humidity sensor based on silver nanoparticles-embedded coatings 

      Urrutia Azcona, Aitor Upna Orcid (2015)   Tesis doctoral / Doktoretza tesia  OpenAccess
      El desarrollo de nuevos materiales y métodos de deposición a escala nanométrica ha supuesto una auténtica revolución en muchas disciplinas de la investigación. En particular, en el campo de los sensores de fibra óptica, ...

    • Development of terahertz systems for imaging applications 

      Maestrojuán Biurrun, Itziar Upna (2015)   Tesis doctoral / Doktoretza tesia  OpenAccess
      El principal objetivo de esta tesis fue el estudio y desarrollo de tecnología, concretamente mezcladores armónicos, trabajando a frecuencias de milimétricas y sub-milimétricas con el fin de implementar sistemas ...

    • Development of ultrathin metasurface and partially reflective surface antennas for space applications 

      Tellechea Pereda, Amagoia Upna Orcid (2017)   Tesis doctoral / Doktoretza tesia  OpenAccess
      La industria espacial ha estado siempre muy interesada en la evolución de las antenas que se integran en los satélites. Se buscan soluciones que además de ser ligeras y compactas, tengan un coste reducido. De esta forma ...

    • Diffusive-light invisibility cloak for transient illumination 

      Orazbayev, Bakhtiyar Upna Orcid; Beruete Díaz, Miguel Upna Orcid; Martínez, Alejandro; García Meca, Carlos (American Physical Society, 2016)   Artículo / Artikulua  OpenAccess
      Invisibility in a diffusive-light-scattering medium has been recently demonstrated by employing a scattering-cancellation core-shell cloak. Unlike nondiffusive cloaks, such a device can be simultaneously macroscopic, ...

    • Dipolar resonances in conductive carbon micro-fibers probed by near-field terahertz spectroscopy 

      Khromova, Irina Upna Orcid; Navarro Cía, Miguel Upna Orcid; Brener, I.; Reno, J. L.; Ponomarev, A.; Mitrofanov, Oleg (AIP Publishing, 2015)   Artículo / Artikulua  OpenAccess
      We observe dipole resonances in thin conductive carbon micro-fibers by detecting an enhanced electric field in the near-field of a single fiber at terahertz (THz) frequencies. Time-domain analysis of the electric field ...

    • Dipolos y metamateriales: mejora de las características de radiación 

      Sáenz Sáinz, Elena Upna; Gonzalo García, Ramón Upna Orcid; Ederra Urzainqui, Íñigo Upna Orcid; Maagt, Peter de (2004)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this work, pass band properties of Left Handed Media (LHM) are demonstrated. These properties have been used in order to make a LHM super-substrate that is put over a dipole antenna. This super-substrate is going to ...

    • Discrete lenses for multibeam applications 

      Lizarraga Cubillos, Juan Camilo Upna; Crespo López, Gonzalo Upna; Río Bocio, Carlos del Upna Orcid (2011)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The capability of having many different beams illuminating the earth surface from a geostationary satellite has been an issue of interest during the last few years. The need of increasing the services provided ...

    • Diseño de alimentadores optimizados para la cámara anecoica de la Universidad de Limoges 

      Teniente Vallinas, Jorge Upna Orcid; Arnaud, Eric; Gonzalo García, Ramón Upna Orcid; Río Bocio, Carlos del Upna Orcid (2006)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, high technology optimized feed horn designs are presented. These feed horns have been designed to improve the quite zone size and behaviour of the CATR of the CREAPE research team at Limoges University. Very ...

    • Diseño de filtros banda rechazada usando Defected Ground Structures (DGS) 

      Garde Irigoyen, Ieltxu Aitor Upna; Río Bocio, Carlos del Upna Orcid (2003)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper a type of Defected Ground Structure (DGS) is studied and used to implement filters in microstrip technology. It is first demonstrated that the main parameter which controls its operation is the external ...

    • Diseño de filtros en guía rectangular usando estructuras PBG's 

      Mendióroz, Luis; Martínez de Espronceda Cámara, Beatriz; Gonzalo García, Ramón Upna Orcid; Río Bocio, Carlos del Upna Orcid (2000)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      A new application of dielectric periodic structures (also known as PBG) to build and design waveguide filters is presented. The periodic structures have some stop frequency bands, band gaps, defined by the geometry, ...

    • Diseño de filtros paso bajo usando Defected Ground Structures (DGS) 

      Garde Irigoyen, Ieltxu Aitor Upna; Río Bocio, Carlos del Upna Orcid (2003)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper a new method of trully design of filters using Defected Ground Structures is proposed. It makes use of the model proposed in previous developments by the same authors and simplifies it to a first-order model ...

    • Diseño de guías de onda cuasi-ópticas para modos gaussianos de orden superior 

      Río Bocio, Carlos del Upna Orcid (1996)   Tesis doctoral / Doktoretza tesia  OpenAccess
      En este trabajo se presenta un nuevo método de diseño de guías de onda cuasi-ópticas para modos gaussianos, a frecuencias milimétricas. En concreto, se centrará en la generación de modos gaussianos de orden superior, ...

    • Diseño de una antena dual gaussiana de doble profundidad de corrugación 

      Ortiz Pérez de Eulate, Noelia Upna; Teniente Vallinas, Jorge Upna Orcid; Gonzalo García, Ramón Upna Orcid; Río Bocio, Carlos del Upna Orcid (2003)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper a new design of a dual-band corrugated horn antenna is presented. The design is based on a gaussian profile to allow high pattern symmetry, low-crosspolar levels and low-side-lobes over a wide frequency range. ...

    • Diseño óptimo de antenas de bocina multimodo para excitar un haz gaussiano fundamental de alta pureza 

      Gonzalo García, Ramón Upna Orcid; Río Bocio, Carlos del Upna Orcid; Teniente Vallinas, Jorge Upna Orcid; Sorolla Ayza, Mario Upna (1996)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, we present an original and optimal multimode horn antenna design to excite the fundamental Gaussian beam from an overmoded waveguide. In particular, we focus the study in overmoded circular corrugated ...
      El Repositorio ha recibido la ayuda de la Fundación Española para la Ciencia y la Tecnología para la realización de actividades en el ámbito del fomento de la investigación científica de excelencia, en la Línea 2. Repositorios institucionales (convocatoria 2020-2021).
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