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    • Etched LPFGs in reflective configuration for sensitivity and attenuation band depth increase 

      Del Villar, Ignacio Upna Orcid; Socorro Leránoz, Abián Bentor Upna Orcid; Corres Sanz, Jesús María Upna Orcid; Matías Maestro, Ignacio Upna Orcid; Cruz, José Luis; Rego, Gaspar (IEEE, 2016)   Artículo / Artikulua  OpenAccess
      A reflection configuration setup for long-period fiber gratings is presented. It permits to obtain a unique band with attenuation double than that obtained in transmission configuration, which is interesting for ...

    • Evaluation of deployment challenges of wireless sensor networks at signalized intersections 

      Azpilicueta Fernández de las Heras, Leyre Upna Orcid; López Iturri, Peio Upna Orcid; Aguirre Gallego, Erik Upna Orcid; Martínez Carrasco, Carlos; Astrain Escola, José Javier Upna Orcid; Villadangos Alonso, Jesús Upna Orcid; Falcone Lanas, Francisco Javier Upna Orcid (MDPI, 2016)   Artículo / Artikulua  OpenAccess
      With the growing demand of Intelligent Transportation Systems (ITS) for safer and more efficient transportation, research on and development of such vehicular communication systems have increased considerably in the last ...

    • Evaluation of electromagnetic dosimetry of wireless systems in complex indoor scenarios with human body interaction 

      Aguirre Gallego, Erik Upna Orcid; Arpón Díaz-Aldagalán, Javier; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Ramos González, Victoria; Falcone Lanas, Francisco Javier Upna Orcid (EMW Publishing, 2012)   Artículo / Artikulua  OpenAccess
      In this work, the influence of human body within the estimation of dosimetric values is analyzed. A simplified human body model, including the dispersive nature of material parameters of internal organs, skin, muscle, bones ...

    • Evaluation of electromagnetic interference and exposure assessment from s-Health solutions based on Wi-Fi devices 

      Miguel Bilbao, Silvia de; Aguirre Gallego, Erik Upna Orcid; Azpilicueta Fernández de las Heras, Leyre Upna Orcid; Roldán Madroñero, José; Ramos González, Victoria; Falcone Lanas, Francisco Javier Upna Orcid (Hindawi Publishing Corporation, 2015)   Artículo / Artikulua  OpenAccess
      In the last decade the number of wireless devices operating at the frequency band of 2.4GHz has increased in several settings, such as healthcare, occupational, and household. In this work, the emissions fromWi-Fi transceivers ...

    • Evaluation of the Brillouin precursor performance for ultra wide band intra-body technologies 

      Vázquez Alejos, Ana; Falcone Lanas, Francisco Upna Orcid; Dawood, Muhammad; Aguirre Gallego, Erik Upna Orcid; Azpilicueta Fernández de las Heras, Leyre Upna Orcid (Taylor&Francis, 2013)   Artículo / Artikulua  OpenAccess
      In this letter, we describe the formation and the evolution of Brillouin precursorfields through human tissues by using a frequency-domain analysis technique and amulti-pole Cole–Cole model to characterize the dielectric ...

    • Evanescently fed electromagnetic band-gap horn antennas and arrays 

      Khromova, Irina Upna Orcid; Ederra Urzainqui, Íñigo Upna Orcid; Teniente Vallinas, Jorge Upna Orcid; Gonzalo García, Ramón Upna Orcid; Esselle, Karu P. (IEEE, 2012)   Artículo / Artikulua  OpenAccess
      The design of a horn antenna based on electromagnetic band-gap structures (EBGs) and fed by evanescent fields in the containing periodic structure is presented. Such all-dielectric antennas can form compact arrays and ...

    • Experimental and numerical characterization of a hybrid Fabry-Perot cavity for temperature sensing 

      López Aldaba, Aitor Upna; Rodrigues Pinto, Ana Margarida Upna; López-Amo Sáinz, Manuel Upna Orcid; Frazão, Orlando; Santos, José Luís; Baptista, José Manuel; Baierl, Hardy; Auguste, Jean-Louis; Jamier, Raphael; Roy, Philippe (MDPI, 2015)   Artículo / Artikulua  OpenAccess
      A hybrid Fabry-Pérot cavity sensing head based on a four-bridge microstructured fiber is characterized for temperature sensing. The characterization of this cavity is performed numerically and experimentally in the L-band. ...

    • Experimental demonstration of a millimeter-wave metallic ENZ lens based on the energy squeezing principle 

      Torres Landívar, Víctor Upna; Orazbayev, Bakhtiyar Upna Orcid; Pacheco-Peña, Víctor Upna Orcid; Teniente Vallinas, Jorge Upna Orcid; Beruete Díaz, Miguel Upna Orcid; Navarro Cía, Miguel Upna Orcid; Sorolla Ayza, Mario Upna (IEEE, 2015)   Artículo / Artikulua  OpenAccess
      The performance of an epsilon-near zero (ENZ) plano-concave lens is experimentally demonstrated and verified at the D-band of the millimeter-waves. The lens is comprised of an array of narrow metallic waveguides near cut-off ...

    • Experimental demonstration of lossy mode and surface plasmon resonance generation with Kretschmann configuration 

      Del Villar, Ignacio Upna Orcid; Torres Landívar, Víctor Upna; Beruete Díaz, Miguel Upna Orcid (Optical Society of America, 2015)   Artículo / Artikulua  OpenAccess
      Lossy mode resonances (LMRs) and surface plasmon resonaces (SPRs) are obtained experimentally with a Kretschmann configuration using a BK7 glass prism with all sides polished and coated with indium tin oxide (ITO). The ...

    • Experimental demonstration of lossy mode resonance generation for transverse-magnetic and transverse-electric polarizations 

      Ruiz Zamarreño, Carlos Upna Orcid; Zubiate Orzanco, Pablo Upna Orcid; Sagüés García, Mikel Upna Orcid; Matías Maestro, Ignacio Upna Orcid; Arregui San Martín, Francisco Javier Upna Orcid (Optica Publishing Group, 2013)   Artículo / Artikulua  OpenAccess
      This Letter, presents the fabrication of lossy mode resonance (LMR) devices based on titanium dioxide (TiO2)/ poly(sodium 4-styrenesulfonate) (PSS) coatings deposited on side-polished D-shaped optical fibers. TiO2 thin ...

    • Experimental demonstration of metamaterials application for mitigating scan blindness in phased array antennas 

      Rodríguez Ulibarri, Pablo Upna Orcid; Crépin, Thomas; Martel, Cédric; Boust, Fabrice; Falcone Lanas, Francisco Javier Upna Orcid; Loecker, Claudius; Herbertz, Kai; Bertuch, Thomas; Dousset, Thierry; Martinaud, Jean-Paul; Maci, Stefano; Marcotegui, José Antonio Upna; Beruete Díaz, Miguel Upna Orcid (EDP Sciences, 2016)   Artículo / Artikulua  OpenAccess
      This paper presents two metamaterial-inspired solutions to mitigate the scan blindness effects in a phased array antenna. In the first solution, portions of a bed of nails are introduced in the radome to prevent the excitation ...

    • Experimental demonstration of metasurface-based ultrathin carpet cloaks for millimetre waves 

      Orazbayev, Bakhtiyar Upna Orcid; Mohammadi Estakhri, Nasim; Alù, Andrea; Beruete Díaz, Miguel Upna Orcid (Wiley, 2016)   Artículo / Artikulua  OpenAccess
      A metasurface carpet cloak for millimeter-wave range with polarization-independent performance is experimentally demonstrated. It is shown that the cloak is able to mimic the ground plane by fully restoring the amplitude ...

    • Experimental demonstration of phase resonances in metallic compound gratings with subwavelength slits in the millimeter wave regime 

      Navarro Cía, Miguel Upna Orcid; Skigin, Diana C.; Beruete Díaz, Miguel Upna Orcid; Sorolla Ayza, Mario Upna (AIP Publishing, 2009)   Artículo / Artikulua  OpenAccess
      We provide experimental evidence of phase resonances in metallic periodic structures in which each period comprises several subwavelength slits of the same width. We have analyzed and measured the response of these ...

    • Experimental evidence of coherence resonance in a time-delayed bistable system 

      Arizaleta Arteaga, Mikel Upna Orcid; Valencia, Miguel; Sciamanna, Marc; Thienpont, Hugo; López-Amo Sáinz, Manuel Upna Orcid; Panajotov, Krassimir (APS Physics, 2007)   Artículo / Artikulua  OpenAccess
      We report on the experimental observation of coherence resonance in a bistable system with delay. Our system consists of a vertical-cavity surface-emitting laser subject to time-delayed optical feedback simultaneously from ...

    • Experimental optimization in terms of power stability and output power of highly Er-doped fiber lasers with single and hybrid cavities 

      Pérez Herrera, Rosa Ana Upna Orcid; Chen, Shuying; Zhao, Weizhong; Sun, Tong; López-Amo Sáinz, Manuel Upna Orcid (Taylor & Francis, 2010)   Artículo / Artikulua  OpenAccess
      In this article, the output power stability of several different highly erbiumdoped fiber ring lasers, as a function of the laser parameters, is experimentally investigated. The study is focused on the optimization of ...

    • Experimental realization of an epsilon-near-zero graded-index metalens at terahertz frequencies 

      Pacheco-Peña, Víctor Upna Orcid; Engheta, Nader; Kuznetsov, Sergei A.; Gentselev, Alexandr; Beruete Díaz, Miguel Upna Orcid (American Physical Society, 2017)   Artículo / Artikulua  OpenAccess
      The terahertz band has been historically hindered by the lack of efficient generators and detectors, but a series of recent breakthroughs have helped to effectively close the “terahertz gap.” A rapid development of terahertz ...

    • Experimental study and sensing applications of polarization-dependent lossy mode resonances generated by D-shape coated 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 (IEEE, 2015)   Artículo / Artikulua  OpenAccess
      The fabrication and characterization of an optical fiber refractometer based on Lossy Mode Resonances (LMR) is presented. TiO2/ poly (sodium 4-styrenesulfonate) (PSS) coatings deposited on side-polished D-shaped optical ...

    • Experimental validation of a Ku-band dual circularly polarized metasurface antenna 

      Tellechea Pereda, Amagoia Upna Orcid; Caminita, Francesco; Martini, Enrica; Ederra Urzainqui, Íñigo Upna Orcid; Teniente Vallinas, Jorge Upna Orcid; Iriarte Galarregui, Juan Carlos Upna Orcid; Gonzalo García, Ramón Upna Orcid; Maci, Stefano (IEEE, 2018)   Artículo / Artikulua  OpenAccess
      The experimental validation of a Ku-band dual circularly polarized (CP) broadside-beam metasurface (MTS) antenna is presented. A radially modulated anisotropic single layer MTS has been synthesised employing sub-wavelength ...

    • Exploiting the dispersion of the double-negative-index fishnet metamaterial to create a broadband low-profile metallic lens 

      Orazbayev, Bakhtiyar Upna Orcid; Pacheco-Peña, Víctor Upna Orcid; Beruete Díaz, Miguel Upna Orcid; Navarro Cía, Miguel Upna Orcid (Optical Society of America, 2015)   Artículo / Artikulua  OpenAccess
      Metamaterial lenses with close values of permittivity and permeability usually display low reflection losses at the expense of narrow single frequency operation. Here, a broadband low-profile lens is designed by exploiting ...

    • Extraordinary transmission and left-handed propagation in miniaturized stacks of doubly periodic subwavelength hole arrays 

      Beruete Díaz, Miguel Upna Orcid; Sorolla Ayza, Mario Upna; Navarro Cía, Miguel Upna Orcid; Falcone Lanas, Francisco Javier Upna Orcid; Campillo, Igor; Lomakin, Vitaliy (Optical Society of America, 2007)   Artículo / Artikulua  OpenAccess
      Metallic plates embedded between dielectric slabs and perforated by rectangular arrays of subwavelength holes with a dense periodicity in one of the directions support extraordinary transmission (ET) phenomena, viz. strong ...
      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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