Now showing items 1-8 of 8

    • A dedicated numerical technique for field simulations of antennas on electromagnetic band-gap substrates 

      Hon, B.P. de; Beurden, M.C. van; Gonzalo García, Ramón Upna; Martínez Pascual, Beatriz Upna; Ederra Urzainqui, Íñigo Upna; Río Bocio, Carlos del Upna; Azcona, L.; Alderman, B.; Huggard, P.G.; Marchand, L.; Maagt, Peter de (2004)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    • Development of ultrathin metasurface and partially reflective surface antennas for space applications 

      Tellechea Pereda, Amagoia Upna (2017)   Tesis doctoral / Doktoretza tesia  OpenAccess
      La industria espacial ha estado siempre muy interesada en la evolución de las antenas que se integran en los satélites. Se buscan soluciones que además de ser ligeras y compactas, tengan un coste reducido. De esta forma ...
    • 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 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, Ramón; 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 ...
    • Low profile THz periodic leaky-wave antenna 

      Beaskoetxea Gartzia, Unai Upna; Beruete Díaz, Miguel Upna; Rodríguez Ulibarri, Pablo Upna; Etayo Salinas, David Upna; Sorolla Ayza, Mario Upna; Navarro Cía, Miguel Upna; Zehar, Mokhtar; Blary, Karine; Chahadih, Abdallah; Han, Xiang-Lei; Akalin, Tahsin (IEEE, 2014)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this work, a 0.566THz flat leaky-wave antenna, consisting of a central λ0/2 slot surrounded by straight parallel wedge corrugations, is numerically and experimentally analyzed. Simulations show a moderately high gain ...
    • Manufacture and characteristics of wide bandwith, 3-D, EBG crystals for sub-millimetre antenna substrates 

      Azcona, L.; Alderman, B.; Huggard, P.G.; Gonzalo García, Ramón Upna; Martínez Pascual, Beatriz Upna; Ederra Urzainqui, Íñigo Upna; Río Bocio, Carlos del Upna; Hon, B.P. de; Beurden, M.C. van; Marchand, L.; Maagt, Peter de (2004)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
    • Research on metamaterials for antenna applications 

      Gonzalo García, Ramón Upna; Ederra Urzainqui, Íñigo Upna; Iriarte Galarregui, Juan Carlos Upna; Martínez Pascual, Beatriz Upna; Sáenz Sáinz, Elena Upna; Cantora Álvarez, Pablo; Maagt, Peter de (2005)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      During the last 20 years a lot of attention has been paid to apply Electromagnetic Band Gap (EBG) technology in different frequency ranges, from microwaves to optics. EBG technology is based on the use of periodic structures ...
    • A slow light fishnet-like absorber in the millimeter-wave range 

      Navarro Cía, Miguel Upna; Torres Landívar, Víctor Upna; Beruete Díaz, Miguel Upna; Sorolla Ayza, Mario Upna (EMW Publishing, 2011)   Artículo / Artikulua  OpenAccess
      A novel route to achieve a narrowband free-space electromagnetic absorber in any range of the spectrum based on stacked subwavelength hole arrays is proposed. The absorption is obtained by means of a slow light mode inside ...