Listar Dpto. Ingeniería Eléctrica y Electrónica - Ingeniaritza Elektriko eta Elektronikoa Saila por título
Mostrando ítems 616-635 de 648
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Ubiquitous connected train based on train-to-ground and intra-wagon communications capable of providing on trip customized digital services for passengers
Salaberria, Itziar; Perallos Ruiz, Asier; Azpilicueta Fernández de las Heras, Leyre
; Falcone Lanas, Francisco Javier ; Carballedo, Roberto; Angulo Martínez, Ignacio; Elejoste Larrucea, Pilar; Bahillo, Alfonso; Astrain Escola, José Javier ; Villadangos Alonso, Jesús (MDPI, 2014)
Contribución a congreso / Biltzarrerako ekarpena 
During the last years, the application of different wireless technologies has been explored in order to enable Internet connectivity from vehicles. In addition, the widespread adoption of smartphones by citizens represents ... -
Ultra-compact planoconcave zoned metallic lens based on the fishnet metamaterial
Pacheco-Peña, Víctor ; Orazbayev, Bakhtiyar ; Torres Landívar, Víctor ; Beruete Díaz, Miguel ; Navarro Cía, Miguel (AIP Publishing, 2013)
Artículo / Artikulua
A 1.5λ0 -thick planoconcave zoned lens based on the fishnet metamaterial is demonstrated experimentally at millimeter wavelengths. The zoning technique applied allows a volume reduction of 60% compared to a full fishnet ... -
Ultra-long (290 km) remote interrogation sensor network based on a random distributed feedback fiber laser
Miguel Soto, Verónica de ; Leandro González, Daniel ; López-Amo Sáinz, Manuel (Optical Society of America, 2018)
Artículo / Artikulua
In this work, an interferometric sensor has been interrogated 290 km away from the monitoring station, reaching the longest distance in fiber optic sensing up to date. This has been attained by employing a double-pumped ... -
Ultra-wide band corrugated gaussian profiled horn antenna design
Teniente Vallinas, Jorge ; Gonzalo García, Ramón ; Río Bocio, Carlos del (IEEE, 2001)
Contribución a congreso / Biltzarrerako ekarpena
A corrugated horn antenna design with more than 40% bandwidth is proposed in this paper. The measured radiated field patterns have a good agreement with the simulated ones. This antenna can be used in applications that ... -
Ultra-wide band corrugated profiled horn antenna design
Teniente Vallinas, Jorge ; Gonzalo García, Ramón ; Río Bocio, Carlos del (IEEE, 2002)
Artículo / Artikulua
Nowadays, an increasing number of applications need stable radiation patterns with low sidelobes and low crosspolar levels in a very wide bandwidth. Gaussian Profiled Horn Antennas (GPHA’s) have demonstrated its feasibility ... -
Ultra-wideband metamaterial filter based on electroinductive-wave coupling between microstrips
Navarro Cía, Miguel ; Carrasco, José Miguel; Beruete Díaz, Miguel ; Falcone Lanas, Francisco Javier (EMW Publishing, 2009)
Artículo / Artikulua
In this work, we analyse the frequency response of microstrip lines coupled by complementary split ring resonators (CSRRs) etched on the ground plane supporting electroinductive waves (EIWs). The single-particle ... -
Ultrafast electrooptic dual-comb interferometry
Durán, Vicente; Tainta Ausejo, Santiago ; Torres Company, Víctor (Optical Society of America, 2015)
Artículo / Artikulua
Dual-comb interferometry is a particularly compelling technique that relies on the phase coherence of two laser frequency combs for measuring broadband complex spectra. This method is rapidly advancing the field of optical ... -
Ultrahigh sensitive detection of tau protein as Alzheimer's biomarker via microfluidics and nanofunctionalized optical fiber sensors
Chiavaioli, Francesco; Santano, Desiree ; Del Villar, Ignacio ; Socorro Leránoz, Abián Bentor ; Zhang, Xuejun; Li, Kaiwei; Santamaría, Enrique; Fernández Irigoyen, Joaquín ; Baldini, Francesco; Van den Hove, Daniel L. A.; Shi, Lei; Bi, Wei; Guo, Tuan; Giannetti, Ambra; Matías Maestro, Ignacio (Wiley, 2022)
Artículo / Artikulua
Alzheimer’s disease (AD) is one of the most common neurodegenerative illnesses displaying the highest death rate in the elderly. However, the existing AD diagnostic system remains elusive due to lack of a technology that ... -
Ultrahigh-sensitivity sensors based on thin-film coated long period gratings with reduced diameter, in transition mode and near the dispersion turning point
Del Villar, Ignacio (Optical Society of America, 2015)
Artículo / Artikulua
The mode transition and the dispersion turning point have been explored for optimization of thin-film coated long period fiber gratings during the last years. In this work and additional parameter, the cladding diameter, ... -
Unified analysis of glottal source spectrum
Arroabarren Alemán, Ixone; Zivanovic, Miroslav ; Carlosena García, Alfonso (ISCA, 2003)
Contribución a congreso / Biltzarrerako ekarpena
The spectral study of the glottal excitation has traditionally been based on a single time-domain mathematical model of the signal, and the spectral dependence on its time domain parameters. Opposite to this approach, ... -
Upper bounds on scattering processes and metamaterial-inspired structures that reach them
Ederra Urzainqui, Íñigo ; Liberal Olleta, Íñigo ; Gonzalo García, Ramón ; Ziolkowski, Richard W. (IEEE, 2014)
Artículo / Artikulua
The physical limitations on time-harmonic scattering processes are investigated on the basis of the optical theorem. Previously derived least upper bounds on the total scattering and absorption cross-sections are obtained ... -
A user-centric privacy framework for pervasive environments
Alcalde Bagüés, Susana; Zeidler, Andreas; Fernández Valdivielso, Carlos; Matías Maestro, Ignacio (Springer, 2006)
Contribución a congreso / Biltzarrerako ekarpena
One inherent feature of pervasive computing environments is the need to gather and process context information about real persons. Unfortunately, this unavoidably affects persons¿ privacy to a large degree. Each time ... -
Using CORPS-BFN to feed multibeam antenna systems
Betancourt Quiñones, Diego; Río Bocio, Carlos del (2007)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, a simple example of application of the CORPS-BFN concept has been presented. A multibeam antenna system is seen as a small part of the human eye, and therefore, improving the similarity of the whole system ... -
Using S-parameter measurements to determine the threshold voltage, gain factor, and mobility degradation factor for microwave bulk-MOSFETs
(Elsevier, 2011) Artículo / Artikulua
In this paper, we present an extraction and characterization methodology which allows for the determination, from S-parameter measurements, of the threshold voltage, the gain factor, and the mobility degradation factor, ... -
Utilizando CORPS-BFN para alimentar sistemas de antenas de múltiples haces
Betancourt Quiñones, Diego; Río Bocio, Carlos del (2007)
Contribución a congreso / Biltzarrerako ekarpena
This paper present an application of the Coherently Radiating Periodic Structures - CORPS on the design of a Beam Forming Network -BFN. The Named CORPS-BFN is a novel feeding network with special behaviour characteristics ... -
Vertically coupled microring resonators using one epitaxial growth step and single-side lithography
García López, Óscar; Thourhout, Dries Van; Lasaosa Medarde, Daniel; López-Amo Sáinz, Manuel ; Baets, Roel; Galarza Galarza, Marko (Optical Society of America, 2015)
Artículo / Artikulua
A new concept for the fabrication of integrated microring resonators, requiring only one single epitaxial growth and two single-side lithographic steps, is proposed in what is the simplest fabrication scheme for vertical ... -
Very short and efficient feeder design from monomode waveguide
Gonzalo García, Ramón ; Teniente Vallinas, Jorge ; Río Bocio, Carlos del (IEEE, 1997)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, we present an original and short corrugated horn antenna profile to obtain the HE11 corrugated circular waveguide mode exciting with a pure TE11 monomode smooth circular waveguide mode. We will obtain ... -
Vibration detection using optical fiber sensors
Rodríguez García, Yoany; Corres Sanz, Jesús María ; Goicoechea Fernández, Javier (Hindawi, 2010)
Artículo / Artikulua
Condition monitoring of heavy electromechanical equipment is commonly accomplished in the industry using vibration analysis. Several techniques, mainly based on capacitive and piezoelectric accelerometers, have been applied ... -
Vibrato in singing voice: the link between source-filter and sinusoidal models
Carlosena García, Alfonso ; Arroabarren Alemán, Ixone (Springer Open, 2004)
Artículo / Artikulua
The application of inverse filtering techniques for high-quality singing voice analysis/synthesis is discussed. In the context of source-filter models, inverse filtering provides a noninvasive method to extract the voice ... -
Volatile organic compound optical fiber sensors: a review
Elosúa Aguado, César ; Matías Maestro, Ignacio ; Bariáin Aisa, Cándido ; Arregui San Martín, Francisco Javier (MDPI, 2006)
Artículo / Artikulua
Volatile organic compound (VOC) detection is a topic of growing interest with applications in diverse fields, ranging from environmental uses to the food or chemical industries. Optical fiber VOC sensors offering new and ...
