Envíos recientes

  • Comportamiento de propagacion electromagnetica en el apilamiento de agujeros sublambda y agujeros propagantes 

    Navarro Cía, Miguel; Beruete Díaz, Miguel; Falcone Lanas, Francisco Javier; Campillo, Igor; Sorolla Ayza, Mario (2009)   Congreso / Biltzarra
    In this work, we provide more insight on the physics underlying the transmission through subwavelength hole arrays metaprism by comparing it with propagating hole arrays prism. We show the critical role that the size ...
  • Lentes metálicas basadas en el fenómeno de transmisión extraordinaria para conseguir índices de refracción negativos 

    Navarro Cía, Miguel; Beruete Díaz, Miguel; Sorolla Ayza, Mario; Campillo, Igor (2009)   Congreso / Biltzarra
    In this communication we report plano-concave and bi-concave metamaterial lenses based on the close stack of subwavelegnth hole arrays. Contrary to what is expected from cut-off holes, an engineered array of holes ...
  • Cooperative detection applied to THz imaging cameras 

    Lizarraga Cubillos, Juan; Betancourt Quiñones, Diego; Río Bocio, Carlos del (2009)   Congreso / Biltzarra
    THz technology for developing imaging systems has recently aroused great interest, mainly due to the large number of applications in which these frequencies can be used: security, vision in hard environments, etc. The ...
  • EBG superstrate antenna for WAAS bands 

    Osés de León, Ángel; Iriarte Galarregui, Juan Carlos; Ederra Urzainqui, Íñigo; Gonzalo García, Ramón (2008)   Congreso / Biltzarra
    Multiband antennas can simplify considerably the complexity of receivers and transmitters, reducing the size and the mass of the conventional configurations. On the other hand, applications with high directivity requirements ...
  • Low profile multi-frequency dipole antenna array based on planar meta-surfaces 

    Sáenz Sainz, Elena; Ikonen, Pekka; Gonzalo García, Ramón; Ederra Urzainqui, Íñigo; Tretyakov, Sergei; Maagt, Peter de (IEEE, 2007)   Congreso / Biltzarra
    In this paper, the radiation performance of a low profile multi-frequency dipole antenna array with a planar meta-surface is presented. The meta-surface consists of two closely located parallel grids of short dipoles and ...
  • Utilizando CORPS-BFN para alimentar sistemas de antenas de múltiples haces 

    Betancourt Quiñones, Diego; Río Bocio, Carlos del (2007)   Congreso / Biltzarra
    This paper present an application of the Coherently Radiating Periodic Structures - CORPS on the design of a Beam Forming Network -BFN. The Named CORPS-BFN is a novel feeding network with special behaviour characteristics ...
  • Planar DNG superstrate for dipole antenna gain enhancement 

    Sáenz Sainz, Elena; Gonzalo García, Ramón; Ederra Urzainqui, Íñigo; Ikonen, Pekka; Tretyakov, Sergei; Maagt, Peter de (2007)   Congreso / Biltzarra
    In this paper, a volumetric double-negative (DNG) superstrate based on grids of dipoles and wires for dipole antenna applications is proposed.
  • Using CORPS-BFN to feed multibeam antenna systems 

    Betancourt Quiñones, Diego; Río Bocio, Carlos del (2007)   Congreso / Biltzarra
    In this paper, a simple example of application of the CORPS-BFN concept has been presented. A multibeam antenna system is seen as a small part of the human eye, and therefore, improving the similarity of the whole system ...
  • Resultados experimentales de la mejora de potencia radiada por un dipolo mediante un superstrato left-handed 

    Sáenz Sainz, Elena; Gonzalo García, Ramón; Ederra Urzainqui, Íñigo; Maagt, Peter de (2006)   Congreso / Biltzarra
    In this paper a comparison between the measured radiation performances of a single dipole and a dipole with a left handed superstrate based on a finite periodic repetition of a unit cell is presented. First of all the ...
  • Obteniendo imágenes de sistemas CORPS 

    Gómez, Alfonso; Río Bocio, Carlos del (2006)   Congreso / Biltzarra
    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 ...
  • Diseño de alimentadores optimizados para la cámara anecoica de la Universidad de Limoges 

    Teniente Vallinas, Jorge; Arnaud, Eric; Gonzalo García, Ramón; Río Bocio, Carlos del (2006)   Congreso / Biltzarra
    In this paper, high technology optimized feed horn designs are presented. These feed horns have been designed to improve the quite zone size and behaviour of the CATR of the CREAPE research team at Limoges University. Very ...
  • Redes de alimentación de agrupaciones basadas en CORPS 

    Betancourt Quiñones, Diego; Río Bocio, Carlos del (2006)   Congreso / Biltzarra
    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 ...
  • Boresight radiation of a dipole antenna with a uniform or non-uniform left handed superstrate 

    Sáenz Sainz, Elena; Gonzalo García, Ramón; Ederra Urzainqui, Íñigo; Maagt, Peter de (2006)   Congreso / Biltzarra
    In this paper measurements of the radiation performances of a dipole fed by a coaxial balun and a dipole with a left handed superstrate based on a finite periodic repetition of a unit cell are compared. Two types ...
  • Enhancement of the power radiated by a dipole antenna at boresight by means of a left handed superstrate 

    Sáenz Sainz, Elena; Ederra Urzainqui, Íñigo; Gonzalo García, Ramón; Maagt, Peter de (IEEE, 2006)   Congreso / Biltzarra
    In this paper a comparison between the measured radiation performances of a single dipole and a dipole with a left handed superstrate based on a finite periodic repetition of a unit cell is presented. First of all the ...
  • Designing feeding networks with CORPS: coherently radiating periodic structures 

    Betancourt Quiñones, Diego; Río Bocio, Carlos del (2006)   Congreso / Biltzarra
    The design of feeding networks in phased array systems results tricky since all the complex excitations should be provided to all the radiating elements of the system. Where the number of radiating elements increases the ...
  • A general beam-forming network made with CORPS 

    Betancourt Quiñones, Diego; Río Bocio, Carlos del (2006)   Congreso / Biltzarra
    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 since, ...
  • Study of the human eye working principle: an impressive high angular resolution system with simple array detectors 

    Betancourt Quiñones, Diego; Río Bocio, Carlos del (IEEE, 2006)   Congreso / Biltzarra
    In this paper the working principle of the human eye is studied since uses very simple detectors, cones and rods, to provide an impressive high angular resolution without using any kind of scanning technique. Usually ...
  • 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)   Congreso / Biltzarra
    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 ...
  • Design of a planar meta-surface based on dipoles and wires for antenna applications 

    Sáenz Sainz, Elena; Gonzalo García, Ramón; Ederra Urzainqui, Íñigo; Maagt, Peter de (2006)   Congreso / Biltzarra
    In this paper, the design of a planar meta-surface based on dipoles and wires is presented. The unit cell is formed by three independent layers, which contain two parallel dipoles and one wire. The behaviour of these ...
  • Estado del arte de las antenas que combinan corrugaciones horizontales y verticales 

    Teniente Vallinas, Jorge; Gonzalo García, Ramón; Río Bocio, Carlos del (2005)   Congreso / Biltzarra
    In the present paper the state of the art, possibilities, advantages and disadvantages of the patented corrugated horn antennas that combine horizontal and vertical corrugations is being covered. These rather new type and ...

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