• High order mode beam waveguide for technological medium power millimeter wave applications 

      Río Bocio, Carlos del Upna Orcid; Gonzalo García, Ramón Upna Orcid; Marín Pilz, Miguel Upna; Sorolla Ayza, Mario Upna; Möbius, Arnold; Thumm, Manfred (1995)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The use of medium power millimeter wave CW gyrotrons (10- 30 kW and 30-100 GHz) has several potential applications in advanced materials processing. Since a stochastic field distribution in the applicator is desirable ...
    • High resolution polarization-independent highbirefringence fiber loop mirror sensor 

      Leandro González, Daniel Upna Orcid; Bravo Acha, Mikel Upna Orcid; López-Amo Sáinz, Manuel Upna Orcid (Optical Society of America, 2015)   Artículo / Artikulua  OpenAccess
      In this work, two all polarization-maintaining (PM) highbirefringence (Hi-Bi) fiber loop mirrors (FLM) which are immune to external polarization perturbations are validated both theoretically and experimentally. Simplified ...
    • High sensitive and selective C-reactive protein detection by means of lossy mode resonance based optical fiber devices 

      Zubiate Orzanco, Pablo Upna Orcid; Ruiz Zamarreño, Carlos Upna Orcid; Sánchez Zábal, Pedro Upna Orcid; Matías Maestro, Ignacio Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid (Elsevier, 2017)   Artículo / Artikulua  OpenAccess
      This work presents the development of high sensitive, selective, fast and reusable C-reactive protein (CRP) aptasensors. This novel approach takes advantage of the utilization of high sensitive refractometers based on ...
    • High sensitive refractometers based on lossy mode resonances (LMRs) supported by ITO coated D-shaped optical fibers 

      Zubiate Orzanco, Pablo Upna Orcid; Ruiz Zamarreño, Carlos Upna Orcid; Del Villar, Ignacio Upna Orcid; Matías Maestro, Ignacio Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid (Optical Society of America, 2015)   Artículo / Artikulua  OpenAccess
      Tin doped indium oxide (ITO) coatings fabricated onto D-shaped optical fibers are presented as the supporting medium for Lossy Mode Resonances (LMRs) generation. The characteristic geometry of ITO-coated D-shaped optical ...
    • High-order PLL design with constant phase margin 

      Ugarte Gil, Mikel Upna; Carlosena García, Alfonso Upna Orcid (IEEE, 2010)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper we describe a novel procedure to design high-type high-order Phase Locked Loops (PLLs) from lower order prototypes, preserving a prescribed Phase Margin (PM). The method builds on a model recently proposed ...
    • High-resolution transversal load sensor using a random distributed feedback fiber laser 

      Miguel Soto, Verónica de Upna Orcid; Leandro González, Daniel Upna Orcid; López-Amo Sáinz, Manuel Upna Orcid (SPIE, 2016)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this work, a new application of random distributed feedback lasers to fiber optic sensing has been presented. The particular properties of these lasers, such as the lack of longitudinal modes and high stability, have ...
    • Highly-efficient fully resonant vertical couplers for InP active-passive monolithic integration using vertically phase matched waveguides 

      García López, Óscar; Lasaosa Medarde, Daniel Upna; López-Amo Sáinz, Manuel Upna Orcid; Galarza Galarza, Marko Upna Orcid (Optical Society of America, 2013)   Artículo / Artikulua  OpenAccess
      A new active-passive monolithic integration approach for photonic components based on vertical evanescent coupling is presented. Two vertically stacked waveguides are used in order to provide full resonant power transfer ...
    • Horn antenna lens for multi-beam applications 

      Lizarraga Cubillos, Juan Camilo Upna; Río Bocio, Carlos del Upna Orcid (2010)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      A spherical discrete lens antenna based on the back-toback combination of two choked-horn antennae arrays interconnected through smooth waveguides sections implementing the spherical phasing law, has been designed, simulated ...
    • Humidity sensor based on a long-period fiber grating coated with a hydrophobic thin film 

      Urrutia Azcona, Aitor Upna Orcid; Rivero Fuente, Pedro J. Upna Orcid; Goicoechea Fernández, Javier Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid; Matías Maestro, Ignacio Upna Orcid (2010)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this work it is proposed a novel fiber optic humidity sensor based on a functionally coated long-period fiber grating (LPG). The coating is composed of tetraorthosilicate matrix functionalized with perfluorooctyltriethoxysilane ...
    • Humidity sensor based on Bragg gratings developed on the end facet of an optical fiber by sputtering of one single material 

      Ascorbe Muruzabal, Joaquín Upna Orcid; Corres Sanz, Jesús María Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid; Matías Maestro, Ignacio Upna Orcid (MDPI, 2017)   Artículo / Artikulua  OpenAccess
      The refractive index of sputtered indium oxide nanocoatings has been altered just by changing the sputtering parameters, such as pressure. These induced changes have been exploited for the generation of a grating on the ...
    • A hybrid ray launching-diffusion equation approach for propagation prediction in complex indoor environments 

      Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Falcone Lanas, Francisco Upna Orcid; Janaswamy, Ramakrishna (IEEE, 2017)   Artículo / Artikulua  OpenAccess
      A novel and efficient deterministic approach to model radio wave propagation channels in complex indoor environments improving prediction accuracy is proposed. This technique combines a 3-D Ray Launching algorithm based ...
    • Hydrogen production from water electrolysis: current status and future trends 

      Ursúa Rubio, Alfredo Upna Orcid; Gandía Pascual, Luis Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid (IEEE, 2012)   Artículo / Artikulua  OpenAccess
      This paper reviews water electrolysis technologies for hydrogen production and also surveys the state of the art of water electrolysis integration with renewable energies. First, attention is paid to the thermodynamic and ...
    • Hydrogen-lithium energy storage for a stand-alone microgrid 

      Berrueta Irigoyen, Alberto Upna Orcid; San Martín Biurrun, Idoia Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid; Ursúa Rubio, Alfredo Upna Orcid (2016)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Sizing of the storage system for a stand-alone application: Satisfaction of technical requirements; Based on real data from an experimental microgrid; Long lifetime; Lowest price
    • Impact of high power interference sources in planning and deployment of wireless sensor networks and devices in the 2.4 GHz frequency band in heterogeneous environments 

      López Iturri, Peio Upna Orcid; Nazábal Urriza, Juan Antonio Upna; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Rodríguez Ulibarri, Pablo Upna Orcid; Beruete Díaz, Miguel Upna Orcid; Fernández Valdivielso, Carlos Upna; Falcone Lanas, Francisco Javier Upna Orcid (MDPI, 2012)   Artículo / Artikulua  OpenAccess
      In this work, the impact of radiofrequency radiation leakage from microwave ovens and its effect on 802.15.4 ZigBee-compliant wireless sensor networks operating in the 2.4 GHz Industrial Scientific Medical (ISM) band is ...
    • Implementacion de línea de ε negativa en tecnología stripline 

      Illescas, Jesús; Jarauta Ayensa, Eduardo Upna; Estévez González, Aritz; Marcotegui, José Antonio Upna; Falcone Lanas, Francisco Javier Upna Orcid (2009)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this work, a negative-ε equivalent response medium is proponed in stripline technology. To achieve band rejection behaviour, Complementary Split Ring Resonators (CSRR) are placed in the central conductor strip of ...
    • Implementación eficiente de sistemas GALS sobre FPGAs 

      García Lasheras, Javier Upna (2007)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Este artículo presenta un nuevo modelo para la implementación de Sistemas Globalmente Asíncronos – Localmente Síncronos (GALS) sobre Matrices de Puertas Programables por Campo (FPGA) comerciales. Esta nueva visión está ...
    • Implementation and analysis of a wireless sensor network-based pet location monitoring system for domestic scenarios 

      Aguirre Gallego, Erik Upna Orcid; López Iturri, Peio Upna Orcid; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Astrain Escola, José Javier Upna Orcid; Villadangos Alonso, Jesús Upna Orcid; Santesteban Martínez de Morentin, Daniel; Falcone Lanas, Francisco Javier Upna Orcid (MDPI, 2016)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The flexibility of new age wireless networks and the variety of sensors to measure a high number of variables, lead to new scenarios where anything can be monitored by small electronic devices, thereby implementing Wireless ...
    • Implementation and analysis of ISM 2.4 GHz wireless sensor network systems in judo training venues 

      López Iturri, Peio Upna Orcid; Aguirre Gallego, Erik Upna Orcid; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Astrain Escola, José Javier Upna Orcid; Villadangos Alonso, Jesús Upna Orcid; Falcone Lanas, Francisco Javier Upna Orcid (MDPI, 2016)   Artículo / Artikulua  OpenAccess
      In this work, the performance of ISM 2.4 GHz Wireless Sensor Networks (WSNs) deployed in judo training venues is analyzed. Judo is a very popular martial art, which is practiced by thousands of people not only at the ...
    • Implementation and control of a residential electrothermal microgrid based on renewable energies, a hybrid storage system and demand side management 

      Pascual Miqueleiz, Julio María Upna Orcid; Sanchis Gúrpide, Pablo Upna Orcid; Marroyo Palomo, Luis Upna Orcid (MDPI, 2014)   Artículo / Artikulua  OpenAccess
      This paper proposes an energy management strategy for a residential electrothermal microgrid, based on renewable energy sources. While grid connected, it makes use of a hybrid electrothermal storage system, formed by a ...
    • Implementation and operational analysis of an interactive intensive care unit within a smart health context 

      López Iturri, Peio Upna Orcid; Aguirre Gallego, Erik Upna Orcid; Trigo Vilaseca, Jesús Daniel Upna Orcid; Astrain Escola, José Javier Upna Orcid; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Serrano Arriezu, Luis Javier Upna Orcid; Villadangos Alonso, Jesús Upna Orcid; Falcone Lanas, Francisco Javier Upna Orcid (MDPI, 2018)   Artículo / Artikulua  OpenAccess
      In the context of hospital management and operation, Intensive Care Units (ICU) are one of the most challenging in terms of time responsiveness and criticality, in which adequate resource management and signal processing ...

      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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