Listar Dpto. Ingeniería Eléctrica y Electrónica - Ingeniaritza Elektriko eta Elektronikoa Saila por título
Mostrando ítems 417-436 de 648
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Nonbianisotropic complementary split ring resonators as angular selective metasurfaces
Rodríguez Ulibarri, Pablo
; Beruete Díaz, Miguel (Optical Society of America, 2017)
Artículo / Artikulua 
In this work, a metasurface with unconventional angular performance and composed by a nonbianisotropic complementary split ring resonator (NB-CSRR) is analyzed numerically and experimentally. A numerical study comparing ... -
Nonlinear dynamics of vertical-cavity surface-emitting lasers
Panajotov, Krassimir; Sciamanna, Marc; Gatare, Ignace; Arizaleta Arteaga, Mikel ; Thienpont, Hugo (Hindawi / Wiley, 2011)
Artículo / Artikulua
Nonlinear dynamics of Vertical-Cavity Surface-Emitting Lasers (VCSELs) induced by optical injection, optical feedback, current modulation and mutual coupling is reviewed. Due to the surface emission and cylindrical symmetry ... -
A novel camera phone-based platform for Sol-Gel-derived fluorescence pH sensing
Urrutia Azcona, Aitor ; Wencel, D.; O’Driscoll, S.; O’Reilly, B.; Abel, T.; Somers, M.; Rivero Fuente, Pedro J. ; Arregui San Martín, Francisco Javier ; McDonagh, C. (2013)
Contribución a congreso / Biltzarrerako ekarpena
In this work a novel camera phone system for fluorescence-based sol-gel-derived pH sensing is presented. The sol-gel based pH material, a microfluidic chip and a camera phone have been combined to obtain a fluorescence-based ... -
A novel design method for phase-locked loops of any order and type
Carlosena García, Alfonso ; Mànuel Lázaro, Antonio (IEEE, 2006)
Contribución a congreso / Biltzarrerako ekarpena
In this paper a novel approach to the design of PLLs is presented, which can be used regardless of their Order and Type. The method stems from the fact that high-frequency poles in the loop filter determine filtering ... -
Novel highly sensitive protein sensors based on tapered optical fibres modified with Au-based nanocoatings
Urrutia Azcona, Aitor ; Bojan, Kartheka; Marques, Leonel; Mullaney, Kevin; Goicoechea Fernández, Javier ; James, Stephen; Clark, Matt; Tatam, Ralph; Korposh, Sergiy (Hindawi Publishing Corporation, 2016)
Artículo / Artikulua
Novel protein sensors based on tapered optical fibres modified with Au coatings deposited using two different procedures are proposed. Au-based coatings are deposited onto a nonadiabatic tapered optical fibre using (i) a ... -
A novel PLL architecture
Osa, Juan I.; Carlosena García, Alfonso ; López Martín, Antonio (2000)
Contribución a congreso / Biltzarrerako ekarpena
A novel phase-locked loop scheme is proposed in this paper, whose main distinguishing features are infinite hold-in range, pull-out range fractionally constant and also a ripple fractionally constant. To this end, it ... -
Novel sensor design using photonic crystal fibres for monitoring the onset of corrosion in reinforced concrete structures
McCague, Colum; Fabian, Matthias; Karimi, Mohammad; Bravo Acha, Mikel ; Jaroszewicz, Leszek R. (IEEE, 2014)
Artículo / Artikulua
In this paper, a novel sensing technique has been designed and investigated for the direct, in situ detection of steel corrosion distributed in reinforced concrete structures. At present, structural health monitoring in ... -
Nuevas consideraciones al diseño de conversores de modos TE0m-TE0n para aplicaciones de alta potencia a frecuencias milimétricas
Río Bocio, Carlos del ; Gonzalo García, Ramón ; Sorolla Ayza, Mario (1996)
Contribución a congreso / Biltzarrerako ekarpena
In this work, the new results of a study about the general Kovalev’s coherence principle are presented. As we will show here, despite Kovalev presents the coherence principle as general, only the fundamental case can be ... -
Nuevas técnicas para el diseño de antenas de bocina corrugadas
Teniente Vallinas, Jorge ; Gonzalo García, Ramón ; Río Bocio, Carlos del (2004)
Contribución a congreso / Biltzarrerako ekarpena
The present paper deals with the design of modern corrugated horn antennas for extremely low sidelobe level with the use of the well known corrugated Gaussian Profiled Horn Antenna (corrugated GPHA’s) to improve the radiation ... -
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 performance of the zoned fishnet metamaterial lens with positive and negative reference phase
Pacheco-Peña, Víctor ; Minin, Igor V.; Minin, Oleg V.; Beruete Díaz, Miguel (IEEE, 2016)
Artículo / Artikulua
In this letter, several converging fishnet metalenses are designed using both the zoning and reference phase techniques. They are engineered with a focal length of 1.5λ0 at the design frequency of 55 GHz (λ0 = 5.45 mm) at ... -
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 ... -
On the testing, characterization, and evaluation of PV inverters and dynamic MPPT performance under real varying operating conditions
Sanchis Gúrpide, Pablo ; López Taberna, Jesús ; Ursúa Rubio, Alfredo ; Gubía Villabona, Eugenio ; Marroyo Palomo, Luis (Wiley, 2007)
Artículo / Artikulua
The increasing number of photovoltaic inverters that are coming on to the PV marketstresses the need to carry out a dynamic characterization of these elements and theirmaximum power point tracking (MPPT) algorithms under ... -
One-way quasiplanar terahertz absorbers using nonstructured polar dielectric layers
Rodríguez Ulibarri, Pablo ; Serebryannikov, Andriy E.; Beruete Díaz, Miguel (American Physical Society, 2017)
Artículo / Artikulua
A concept of quasiplanar one-way transparent terahertz absorbers made of linear isotropic materials is presented. The resulting structure consists of a homogeneous absorbing layer of polar dielectric, GaAs, a dispersion-free ... -
Optical fiber bus protection network to multiplex sensors: experimental validation of self-diagnosis
Pérez Herrera, Rosa Ana ; Urquhart, Paul; Schlüter, Marcel; Díaz Lucas, Silvia ; López-Amo Sáinz, Manuel (IEEE, 2012)
Artículo / Artikulua
The experimental demonstration of a resilient wavelength division multiplexed (WDM) fiber bus network to interconnect sensors is reported. The network recovers operation after failures and it performs 'self-diagnosis', the ... -
Optical fiber networks for remote fiber optic sensors
Fernández Vallejo, Montserrat; López-Amo Sáinz, Manuel (MDPI, 2012)
Artículo / Artikulua
This paper presents an overview of optical fiber sensor networks for remote sensing. Firstly, the state of the art of remote fiber sensor systems has been considered. We have summarized the great evolution of these systems ... -
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 ...
