Listar Comunicaciones y ponencias de congresos DIEE - IEES Biltzarretako komunikazioak eta txostenak por título
Mostrando ítems 129-148 de 191
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Obteniendo imágenes de sistemas CORPS
Gómez, Alfonso; Río Bocio, Carlos del
(2006)
Contribución a congreso / Biltzarrerako ekarpena 
From the previous research inside the Antenna Group of the Public University of Navarra regarding the working principles of the human eye, one of the conclusions was that the reconstructed image in the surface of the ... -
On the calculation of the STC power of PV generators by using typical monitoring system data
Muñoz Escribano, Mikel; Parra Laita, Íñigo de la ; García Solano, Miguel ; Marcos Álvarez, Javier ; Marroyo Palomo, Luis (2017)
Contribución a congreso / Biltzarrerako ekarpena
The properly in-field characterization of the power at Standard Test Conditions, PSTC, of PV generators is becoming increasingly important in order to evaluate their performance and its evolution in time. Within the state ... -
On the determination of the phase center of gaussian horn antennas
Río Bocio, Carlos del ; Teniente Vallinas, Jorge ; Gonzalo García, Ramón ; Sorolla Ayza, Mario (1998)
Contribución a congreso / Biltzarrerako ekarpena
Gaussian horn antenna designs have experimentally demonstrated excellent performance to produce a very pure Gaussian beam mode with extremely low sidelobes and crosspolarization levels. These results make very attractive ... -
On the stability criteria for inverter current control loops with LCL output filters and varying grid impedance
Lumbreras Magallón, David ; Barrios Rípodas, Ernesto ; Ursúa Rubio, Alfredo ; Marroyo Palomo, Luis ; Sanchis Gúrpide, Pablo (IEEE, 2017)
Contribución a congreso / Biltzarrerako ekarpena
The use of LC and LCL filters and grid impedance variations are creating new challenges on the controller design for current control loops of photovoltaic and wind turbine inverters. In the design process, stability criteria ... -
Optical fiber refractometers based on indium tin oxide coatings with response in the visible spectral region
Ruiz Zamarreño, Carlos ; López, S.; Hernáez Sáenz de Zaitigui, Miguel ; Del Villar, Ignacio ; Matías Maestro, Ignacio ; Arregui San Martín, Francisco Javier (Elsevier, 2011)
Contribución a congreso / Biltzarrerako ekarpena
This work presents the fabrication of optical fiber refractometers based on indium tin oxide (ITO) coatings with response in the visible spectral region. ITO thin-films have been sputtered by employing a rotating mechanism ... -
Optical fiber refractometers based on sputtered indium tin oxide coatings
López, S.; Ruiz Zamarreño, Carlos ; Hernáez, M.; Del Villar, Ignacio ; Arregui San Martín, Francisco Javier ; Matías Maestro, Ignacio (IEEE, 2011)
Contribución a congreso / Biltzarrerako ekarpena
This work presents the fabrication of optical fiber refractometers based on indium tin oxide (ITO) coatings deposited by sputtering with response in the visible spectral region. ITO thin-films have been sputtered by ... -
Optical power-based interrogation of plasmonic tilted fiber Bragg grating biosensors
González Vila, Á.; López Aldaba, Aitor; Kinet, D.; Mégret, P.; López-Amo Sáinz, Manuel ; Caucheteur, C. (SPIE, 2017)
Contribución a congreso / Biltzarrerako ekarpena
Two interrogation techniques for plasmonic tilted fiber Bragg grating sensors are reported and experimentally tested. Typical interrogation methods are usually based on tracking the wavelength shift of the most sensitive ... -
Optical sensor based on polymer electrospun nanofibers for sensing humidity
Urrutia Azcona, Aitor ; Rivero Fuente, Pedro J. ; Goicoechea Fernández, Javier ; Arregui San Martín, Francisco Javier ; Matías Maestro, Ignacio (2011)
Contribución a congreso / Biltzarrerako ekarpena
A novel humidity sensor based on polymer electrospun nanofibers coating onto an optical fiber is proposed in this work. The coating is composed of poly(acrylic acid), and its fabrication was performed by the electrospinning ... -
Optimal horn antenna design to excite high purity gaussian beam using overmoded waveguides
Gonzalo García, Ramón ; Río Bocio, Carlos del ; Teniente Vallinas, Jorge ; Sorolla Ayza, Mario (1996)
Contribución a congreso / Biltzarrerako ekarpena
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 ... -
Optimized antenna system for low power testing of the quasioptical transmission line at TJ-II experiment
Sorolla Ayza, Mario; Río Bocio, Carlos del ; Gonzalo García, Ramón ; Sánchez Corpas, Alberto ; Martín, Romualdo; Fernández, Ángela; Cepero, José R.; Likin, Konstantin M.; Sarksyan, Karen (1996)
Contribución a congreso / Biltzarrerako ekarpena
In this paper we present a high performance antenna system to carry out low power testing of the main parameters of the quasioptical transmission line system for Electron Cyclotron Resonance Heating (ECRH) at TJ-II ... -
Optimized feedhorn designs for compact antenna test range at Limoges University
Teniente Vallinas, Jorge ; Arnaud, Eric; Gonzalo García, Ramón ; Río Bocio, Carlos del (IEEE, 2006)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, high technology optimized feedhorn designs are presented. These feedhorns have been designed to improve the quite zone size and behaviour at the Compact Antenna Test Range (CATR) of the Antenna Research ... -
Optimum horn antennas for high order mode beam waveguides
Río Bocio, Carlos del ; Gonzalo García, Ramón ; Sorolla Ayza, Mario ; Thumm, Manfred (1995)
Contribución a congreso / Biltzarrerako ekarpena
Higher order free space modes can be considered as serious candidates for power millimeter wave transmission in advanced material processing by using medium power CW gyrotrons. These modes can be propagated in a beam ... -
Overcoming non-local effects and Brillouin threshold limitations in Brillouin distributed sensors
Urricelqui Polvorinos, Javier ; Ruiz Lombera, Rubén; Sagüés García, Mikel ; Mirapeix, Jesús; López Higuera, José Miguel; Loayssa Lara, Alayn (SPIE, 2015)
Contribución a congreso / Biltzarrerako ekarpena
We demonstrate, for the first time to our knowledge, a Brillouin optical time domain analysis sensor that is able to operate with a probe power larger than the Brillouin threshold of the deployed sensing fiber and that ... -
Parametric study of pin surface used to suppress undesired modes in a packaged W-band microstrip receiver
Rebollo Mugueta, Ainara; Maestrojuán Biurrun, Itziar ; Larumbe Gonzalo, Belén ; Gonzalo García, Ramón ; Ederra Urzainqui, Íñigo (IEEE, 2013)
Contribución a congreso / Biltzarrerako ekarpena
A pin surface structure has been used in order to suppress undesired modes in a packaged W-band RF front-end receiver. A parametric analysis has been carried out in order to determine the optimum dimensions. Resonances ... -
Paraxiality considerations of higher order gaussian modes
Río Bocio, Carlos del ; Gonzalo García, Ramón ; Sorolla Ayza, Mario (1996)
Contribución a congreso / Biltzarrerako ekarpena
Frequently, gaussian modes are used as free space wave equation solutions. This is not true since they are obtained assuming certain paraxial character in them. In this paper, we present an original study of the condition ... -
Phase-shift based BOTDA measurements tolerant to non-local effects
Urricelqui Polvorinos, Javier ; Sagüés García, Mikel ; Loayssa Lara, Alayn (SPIE, 2013)
Contribución a congreso / Biltzarrerako ekarpena
We demonstrate a BOTDA sensor based on the use of the Brillouin phase shift that performs measurements tolerant to non local effects. This technique raises opportunities to increase the distance covered by these sensors ... -
Phasorial DPP-BOTDA sensor tolerant to non-local effects
Urricelqui Polvorinos, Javier ; Mariñelarena Ollacarizqueta, Jon ; Sagüés García, Mikel ; Loayssa Lara, Alayn (SPIE, 2014)
Contribución a congreso / Biltzarrerako ekarpena
We introduce a modification of the differential pulse width pair technique in a BOTDA sensor based on a phase modulated probe wave and RF demodulation. This provides a differential Brillouin phasorial signal with high ... -
Planar DNG superstrate for dipole antenna gain enhancement
Sáenz Sáinz, Elena; Gonzalo García, Ramón ; Ederra Urzainqui, Íñigo ; Ikonen, Pekka; Tretyakov, Sergei A.; Maagt, Peter de (2007)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, a volumetric double-negative (DNG) superstrate based on grids of dipoles and wires for dipole antenna applications is proposed. -
Polarization diversity for Brillouin distributed fiber sensors based on a double orthogonal pump
Urricelqui Polvorinos, Javier ; López Fernandino, Felipe; Sagüés García, Mikel ; Loayssa Lara, Alayn (SPIE, 2014)
Contribución a congreso / Biltzarrerako ekarpena
We demonstrate a novel Brillouin optical time domain analysis sensor deploying a polarization diversity technique which eliminates the need for polarization scrambling, providing measurements that are largely immune to the ... -
Polyaniline deposition on tilted fiber Bragg grating for pH sensing
López Aldaba, Aitor; González Vila, Á.; Debliquy, M.; López-Amo Sáinz, Manuel ; Caucheteur, C.; Lahem, D. (SPIE, 2017)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, we present the results of a new pH sensor based on a polyaniline (PAni) coating on the surface of a tilted fiber Bragg grating. The pH-sensitive PAni was deposited by in situ chemical oxidative polymerization. ...
