Now showing items 1-6 of 6

    • 3D-printed 96 GHz bull’s-eye antenna with off-axis beaming 

      Beaskoetxea Gartzia, Unai Upna; Maci, Stefano; Navarro Cía, Miguel Upna; Beruete Díaz, Miguel Upna (IEEE, 2017)   Artículo / Artikulua  OpenAccess
      Reducing the profile, footprint and weight of antennas embarked on aircrafts, drones or satellites has been a long pursued objective. Here we tackle this issue by developing a millimeter-wave 96 GHz elliptical Bull’s-Eye ...
    • 77-GHz high-gain bull’s-eye antenna with sinusoidal profile 

      Beaskoetxea Gartzia, Unai Upna; Pacheco Peña, Víctor Upna; Orazbayev, Bakhtiyar Upna; Akalin, Tahsin; Maci, Stefano; Navarro Cía, Miguel Upna (IEEE, 2015)   Artículo / Artikulua  OpenAccess
      A high-gain Bull’s-Eye leaky-wave horn antenna working at 77 GHz with sinusoidal profile has been designed, fabricated, and experimentally measured. The influence of the number of periods on the gain and beamwidth is ...
    • Blind spot mitigation in phased array antenna using metamaterials 

      Crépin, Thomas; Martel, Cédric; Gabard, Benjamin; Boust, Fabrice; Martinaud, Jean-Paul; Dousset, Thierry; Rodríguez Ulibarri, Pablo Upna; Beruete Díaz, Miguel Upna; Loecker, Claudius; Bertuch, Thomas; Marcotegui, José Antonio Upna; Maci, Stefano (IEEE, 2014)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this work, a metaradome based on a fakir’s bed of nails is designed and tested in order to suppress the blind directions of a 100-element antenna array. The antenna is a microstrip array designed to operate in X-band. ...
    • Dual circularly polarized broadside beam metasurface antenna 

      Ederra Urzainqui, Íñigo Upna; Tellechea Pereda, Amagoia Upna; Caminita, Francesco; Martini, Enrica; Iriarte Galarregui, Juan Carlos Upna; Gonzalo García, Ramón Upna; Maci, Stefano (IEEE, 2016)   Artículo / Artikulua  OpenAccess
      This paper presents the design of a modulated metasurface (MTS) antenna capable to provide both righthand (RH) and left-hand (LH) circularly polarized (CP) boresight radiation at Ku-band (13.5 GHz). This antenna is based ...
    • Experimental demonstration of metamaterials application for mitigating scan blindness in phased array antennas 

      Rodríguez Ulibarri, Pablo Upna; Crépin, Thomas; Martel, Cédric; Boust, Fabrice; Falcone Lanas, Francisco Javier Upna; Loecker, Claudius; Herbertz, Kai; Bertuch, Thomas; Dousset, Thierry; Martinaud, Jean-Paul; Maci, Stefano; Marcotegui, José Antonio Upna; Beruete Díaz, Miguel Upna (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 validation of a Ku-band dual circularly polarized metasurface antenna 

      Tellechea Pereda, Amagoia Upna; Caminita, Francesco; Martini, Enrica; Ederra Urzainqui, Íñigo Upna; Teniente Vallinas, Jorge Upna; Iriarte, Juan Carlos; Gonzalo García, Ramón Upna; 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 ...