Listar Comunicaciones y ponencias de congresos DIEE - IEES Biltzarretako komunikazioak eta txostenak por título
Mostrando ítems 134-153 de 191
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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. ... -
PV power forecasting using a parametric model
Muñoz Escribano, Mikel; Parra Laita, Íñigo de la ; García Solano, Miguel ; Marcos Álvarez, Javier (2015)
Contribución a congreso / Biltzarrerako ekarpena
Nowadays, accurate AC power output forecast of PV plants can play a significant role for both the system operators and PV plant owners. The first group has to program the dispatch of the electric system and the second one ... -
Radiation performances of a dipole array configuration inserted in a left-handed media
Sáenz Sáinz, Elena; Gonzalo García, Ramón ; Ederra Urzainqui, Íñigo ; Maagt, Peter de (IEEE, 2005)
Contribución a congreso / Biltzarrerako ekarpena
In this work, the radiation improvements achieved when Left Handed Media (LHM) are combined with dipole antennas has been analysed. The behavior of two dipole antennas in array configuration when a Left Handed superstrate ... -
Radiation performances of a multifrequency dipole antenna array with a left handed superstrate
Sáenz Sáinz, Elena; Gonzalo García, Ramón ; Ederra Urzainqui, Íñigo ; Maagt, Peter de (2005)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, the radiation performances of a multifrequency antenna array (MFAA) which consists of two dipoles (1 and 3) that are radiating at 9.57 GHz and other one (dipole 2) radiating at 11.98 GHz are presented. In ... -
Random fiber lasers: application to fiber optic sensors networks
López-Amo Sáinz, Manuel ; Leandro González, Daniel ; Miguel Soto, Verónica de ; Bravo Acha, Mikel ; Fernández Vallejo, Montserrat ; Pérez Herrera, Rosa Ana (IEEE, 2017)
Contribución a congreso / Biltzarrerako ekarpena
Recently, random mirrors have been proposed as a method to create fiber laser cavities. This kind of cavity is based on cooperative Rayleigh scattering, which is generated along a fiber due to the material inhomogeneities ... -
Redes de alimentación de agrupaciones basadas en CORPS
Betancourt Quiñones, Diego; Río Bocio, Carlos del (2006)
Contribución a congreso / Biltzarrerako ekarpena
A new beam-forming Network concept is introduced. This Network is based in the design principles of CORPS. The new proposed structure presents an improvement in design over the traditional beam-forming Network -BFN ...
