Envíos recientes

  • 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, ...
  • Electroinductive waves in chain of complementary metamaterial elements 

    Beruete Díaz, Miguel; Falcone Lanas, Francisco Javier; Freire, M.J.; Marqués, R.; Baena, J.D. (AIP Publishing, 2006)   Artículo / Artikulua
    Electronductive waves supported by chains of resonators drilled on a metallic plate are presented. Propagation of energy comes as a consequence of the electric coupling between these resonators. Therefore, these waves ...
  • 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 ...
  • On the performance of the zoned fishnet metamaterial lens with positive and negative reference phase 

    Pacheco Peña, Víctor; Minin, Igor; Minin, Oleg; 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 ...
  • High aperture efficiency wide corrugations bull’s-eye antenna working at 60 GHz 

    Beaskoetxea Gartzia, Unai; Beruete Díaz, Miguel (IEEE, 2017)   Artículo / Artikulua
    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 ...
  • Desfasadores para microstrip empleando metamateriales 

    Cantora Álvarez, Alejandro; Gonzalo García, Ramón (2005)   Congreso / Biltzarra
    In this paper an application of LH materials at microwave frequencies (10GHz) is presented. A compact quarter-wave impedance transformer is proposed using alternating sections of left handed media (LHM) and conventional ...
  • Enhanced radiation properties of a rectangular waveguide by means of a left handed media 

    Sáenz Sainz, Elena; Ederra Urzainqui, Íñigo; Gonzalo García, Ramón; Maagt, Peter de (2005)   Congreso / Biltzarra
    In this paper, the results of experimental investigations to improve the gain between two antennas by means of a Left Handed Material (LHM) are presented. The basic idea is the use of a LHM media acting as a resonator ...
  • Design of a multifrequency antenna array with the use of left-handed superstrates 

    Sáenz Sainz, Elena; Gonzalo García, Ramón; Ederra Urzainqui, Íñigo; Maagt, Peter de (2005)   Congreso / Biltzarra
    In this paper, the radiation performances of different antenna configuration based on Left-Handed superstrates are presented. First of all, the behaviour of a Left- Handed (LH) unit cell is analysed, showing a resonant ...
  • 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 ...
  • A complete optimization-loop, including feeders, of antenna systems based on reflectors 

    Delgado, D.; Teniente Vallinas, Jorge; Río Bocio, Carlos del; Haro, L. de; Martínez, J.A.; Pino, A.G (IEEE, 2005)   Congreso / Biltzarra
    In the design process of a complete antenna system based on reflectors, the feed real performance is usually included once the reflectors have been optimized with an ideal feed. In this paper, the proposal is to include ...
  • Radiation performances of a multifrequency dipole antenna array with a left handed superstrate 

    Sáenz Sainz, Elena; Gonzalo García, Ramón; Ederra Urzainqui, Íñigo; Maagt, Peter de (2005)   Congreso / Biltzarra
    In this paper, the radiation performances of a multifrequency antenna array (MFAA) which consists of two dipoles (1 and 3) that are radiating at 9.57 GHz and other one (dipole 2) radiating at 11.98 GHz are presented. In ...

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