Listar por autor UPNA "Beruete Díaz, Miguel"

Mostrando ítems 41-60 de 132

    • 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 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 ...

    • 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 THz transmission with a small beam spot: the leaky wave mechanism 

      Navarro Cía, Miguel Upna Orcid; Pacheco-Peña, Víctor Upna Orcid; Kuznetsov, Sergei A.; Beruete Díaz, Miguel Upna Orcid (Wiley, 2018)   Artículo / Artikulua  OpenAccess
      The discovery of extraordinary optical transmission (EOT) through patterned metallic foils in the late 1990s was decisive for the development of plasmonics and cleared the path to employ small apertures for a variety of ...

    • 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 ...

    • Far-field and near-field physics of extraordinary THz transmitting hole-array antennas 

      Camacho, Miguel; Boix, Rafael R.; Kuznetsov, Sergei A.; Beruete Díaz, Miguel Upna Orcid; Navarro Cía, Miguel Upna Orcid (IEEE, 2019)   Artículo / Artikulua  OpenAccess
      Despite three decades of effort, predicting accurately extraordinary transmission through subwavelength hole arrays has proven challenging. The lack of quantitative design and modeling capability to take into account ...

    • Flat lens antenna using gap waveguide technology at millimeter waves 

      Pérez Quintana, Dayan Upna Orcid; Bilitos, Christos; Ruiz-García, Jorge; González-Ovejero, David; Beruete Díaz, Miguel Upna Orcid (IEEE, 2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, a flat lens antenna using Gap Waveguide (GW) technology working in the millimeter waves band was designed. The metamaterial lens is fed using a Groove Gap Waveguide (GGW) horn antenna in order to achieve a ...

    • Focus on terahertz plasmonics 

      Rahm, Marco; Nahata, Ajay; Akalin, Tahsin; Beruete Díaz, Miguel Upna Orcid; Sorolla Ayza, Mario Upna (IOP Publishing, 2015)   Artículo / Artikulua  OpenAccess
      Plasmonics is one of the growing fields in modern photonics that has garnered increasing interest over the last few years. In this focus issue, the specific challenges concerning terahertz plasmonics have been addressed ...

    • Frozen mode from hybridized extraordinary transmission and Fabry-Perot resonances 

      Beruete Díaz, Miguel Upna Orcid; Rodríguez Ulibarri, Pablo Upna Orcid; Pacheco-Peña, Víctor Upna Orcid; Navarro Cía, Miguel Upna Orcid; Serebryannikov, Andriy E. (American Physical Society, 2013)   Artículo / Artikulua  OpenAccess
      Frozen modes arising in stacked subwavelength hole arrays are studied in detail. Their origin is proved to be connected with the interaction between the extraordinary transmission resonance and the Fabry–Perot cavity mode. ...

    • Full-space metasurface at millimeter-wave frequencies 

      Ruiz Fernández de Arcaya, María; Marzo Pérez, Asier Upna Orcid; Beruete Díaz, Miguel Upna Orcid (IEEE, 2023)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Conventional metasurfaces provide control over the electromagnetic waves in a single working frequency operating either in transmission or reflection. Full-Space Metasurfaces (FSM) are an extension that allows operation ...

    • Fully metallic Luneburg metalens antenna in gap waveguide technology at V-band 

      Pérez Quintana, Dayan Upna Orcid; Bilitos, Christos; Ruiz-García, Jorge; Ederra Urzainqui, Íñigo Upna Orcid; Teniente Vallinas, Jorge Upna Orcid; González-Ovejero, David; Beruete Díaz, Miguel Upna Orcid (IEEE, 2023)   Artículo / Artikulua  OpenAccess
      This article presents the design of a flat Luneburg metalens antenna at V-band using gap waveguide (GW) technology. The metalens consists of a parallel plate waveguide (PPW) loaded with metallic pins whose height is ...

    • A gap waveguide fed circular polarization antennas in the millimeter wave range 

      Pérez Quintana, Dayan Upna Orcid; Torres García, Alicia E. Upna Orcid; Ederra Urzainqui, Íñigo Upna Orcid; Beruete Díaz, Miguel Upna Orcid (IEEE, 2020)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this work, a novel circular polarization (CP) antennas in ridge gap waveguide (RGW) working in the V-band of the millimeter-wave spectrum is presented. CP is generated in a simple and effective way by means of two ...

    • Hedgehog subwavelength hole arrays: control over the THz enhanced transmission 

      Navarro Cía, Miguel Upna Orcid; Rodríguez Ulibarri, Pablo Upna Orcid; Beruete Díaz, Miguel Upna Orcid (Institute of Physics Publishing, 2013)   Artículo / Artikulua  OpenAccess
      By backing or sandwiching a holey metal layer with or between isotropic dielectric slabs, additional peaks of transmission within the long-wavelength regime arise as a result of the induced transverse magnetic (TM) or ...

    • High aperture efficiency wide corrugations bull’s-eye antenna working at 60 GHz 

      Beaskoetxea Gartzia, Unai Upna Orcid; Beruete Díaz, Miguel Upna Orcid (IEEE, 2017)   Artículo / Artikulua  OpenAccess
      A full metallic Bull’s-Eye (BE) antenna operating at 60 GHz is numerically and experimentally analyzed. The antenna presents wide grooves, rather than narrow ones, which support higher order resonances that lead to a large ...

    • Hyperbolic lens antenna in groove gap waveguide technology at sub-millimeter waves 

      Pérez Quintana, Dayan; Biurrun Quel, Carlos Upna Orcid; Ederra Urzainqui, Íñigo Upna Orcid; González-Ovejero, David; Beruete Díaz, Miguel Upna Orcid (IEEE, 2022)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, a flat hyperbolic lens antenna using Groove Gap Waveguide (GGW) technology is designed at 300 GHz. A GGW horn antenna is used to feed the metamaterial lens placed in a parallel plate waveguide (PPW), in order ...

    • 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 ...

    • Increasing surface plasmons propagation via photonic nanojets with periodically spaced 3D dielectric cuboids 

      Pacheco-Peña, Víctor Upna Orcid; Minin, Igor V.; Minin, Oleg V.; Beruete Díaz, Miguel Upna Orcid (MDPI, 2016)   Artículo / Artikulua  OpenAccess
      A structure based on periodically arranged 3D dielectric cuboids connected by photonic nanojets (PNJs) is proposed with the aim of increasing the propagation distance of surface plasmon polaritons (SPPs) at the telecom ...

    • Indium tin oxide refractometer in the visible and near infrared via lossy mode and surface plasmon resonances with Kretschmann configuration 

      Torres Landívar, Víctor Upna; Beruete Díaz, Miguel Upna Orcid; Sánchez Zábal, Pedro Upna Orcid; Del Villar, Ignacio Upna Orcid (AIP Publishing, 2016)   Artículo / Artikulua  OpenAccess
      An indium tin oxide (ITO) refractometer based on the generation of lossy mode resonances (LMRs) and surface plasmon resonances (SPRs) is presented. Both LMRs and SPRs are excited, in a single setup, under grazing angle ...

    • Ku band low profile asymmetric Bull’s-Eye antenna with reduced side lobes and monopole feeding 

      Beaskoetxea Gartzia, Unai Upna Orcid; Torres García, Alicia E. Upna Orcid; Beruete Díaz, Miguel Upna Orcid (IEEE, 2018)   Artículo / Artikulua  OpenAccess
      In this paper, a linearly polarized low profile and asymmetric Bull’s-Eye leaky wave antenna fed by a monopole operating at 13 GHz is presented. Broadside radiation from the monopole is achieved by surrounding it with an ...

    • Labyrinth absorber based on metageometries metasurface for fungi detection 

      Jáuregui López, Irati Upna Orcid; Rodríguez Ulibarri, Pablo Upna Orcid; Kuznetsov, Sergei A.; Beruete Díaz, Miguel Upna Orcid (IEEE, 2020)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper a labyrinth metasurface based in the new paradigm of metageometries is designed to operate in the Terahertz (THz) band as a biosensor. First, a numerical study is carried out to study the performance of the ...
      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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