• Alimentadores gaussianos en guía de onda rectangular 

      Teniente Vallinas, Jorge Upna; Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna (1999)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      A new and efficient design of a rectangular corrugated waveguide mode converter, from TE10 mode in a smooth rectangular monomode waveguide to HE11 mode in a corrugated rectangular waveguide, is proposed. The main idea ...
    • All-metallic ε-near-zero (ENZ) lens based on ultra-narrow hollow rectangular waveguides: experimental results 

      Orazbayev, Bakhtiyar Upna; Torres Landívar, Víctor Upna; Pacheco Peña, Víctor Upna; Falcone Lanas, Francisco Javier Upna; Teniente Vallinas, Jorge Upna; Beruete Díaz, Miguel Upna; Sorolla Ayza, Mario Upna; Navarro Cía, Miguel Upna; Engheta, Nader (IEEE, 2014)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Here we perform numerical and experimental investigation of plano-concave all-metallic ε-near-zero (ENZ) lens with operational frequency f = 144 GHz. The ENZ lens is achieved by stacking an array of narrow hollow rectangular ...
    • Antena corrugada con perfil gaussiano de gran ancho de banda 

      Teniente Vallinas, Jorge Upna; Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna (2001)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      En este trabajo se presenta el diseño de una antena de bocina corrugada con más de un 40% de ancho de banda. Los patrones de radiación medidos coinciden muy bien con los simulados. Esta antena se puede usar en aplicaciones ...
    • ASTRA 3B horn antenna design 

      Teniente Vallinas, Jorge Upna; Río Bocio, Carlos del Upna (2010)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      The ASTRA 3B satellite includes 60 Ku-band state-of-the- art transponders and 4 Ka-band transponders. The spacecraft have been designed for the distribution of both direct-to-home (DTH) broadcast services and two way broadband ...
    • Choked-gaussian corrugated horn antenna design small global coverage horn antenna for TT&C with extremely low sidelobe level 

      Teniente Vallinas, Jorge Upna; Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna (2003)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Extremely low sidelobe horn antennas are often required for the actual technology. This type of horn antennas are important to avoid interference with other systems. In this paper we describe a new design implementing a ...
    • Comparación entre antenas cónicas corrugadas y antenas gaussianas corrugadas 

      Teniente Vallinas, Jorge Upna; Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna (2002)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, a study of two equal size corrugated horn antennas; a conical and a gaussian profiled horn antenna (GPHA) has been developed. It will be demonstrated that GPHA´s provide lower sidelobes and wider bandwidths, ...
    • A complete optimization-loop, including feeders, of antenna systems based on reflectors 

      Delgado, D.; Teniente Vallinas, Jorge Upna; Río Bocio, Carlos del Upna; Haro, L. de; Martínez, J.A.; Pino, A.G (IEEE, 2005)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      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 ...
    • Conical versus gaussian profiled corrugated horn antennas 

      Teniente Vallinas, Jorge Upna; Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna (IEEE, 2002)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, a study of two equal size corrugated horn antennas; a conical and a gaussian profiled horn antenna (GPHA) has been developed. It will be demonstrated that GPHA´s provide lower sidelobes and wider ...
    • Corrugated horn antenna noise temperature characterisation for the NRL water vapor millimeter-wave spectrometer project 

      Teniente Vallinas, Jorge Upna; Gómez, R.M.; Maestrojuán Biurrun, Itziar Upna; Rebollo Mugueta, Ainara Upna; Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna (2011)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper the antenna noise temperature for two different corrugated horn antennas (old model and new model) for NRL WVMS is being characterized. The whole optical system will be simulated with Ticra’s GRASP software, ...
    • Diseño de alimentadores optimizados para la cámara anecoica de la Universidad de Limoges 

      Teniente Vallinas, Jorge Upna; Arnaud, Eric; Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna (2006)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      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 ...
    • Diseño de una antena dual gaussiana de doble profundidad de corrugación 

      Ortiz Pérez de Eulate, Noelia Upna; Teniente Vallinas, Jorge Upna; Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna (2003)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper a new design of a dual-band corrugated horn antenna is presented. The design is based on a gaussian profile to allow high pattern symmetry, low-crosspolar levels and low-side-lobes over a wide frequency range. ...
    • Diseño óptimo de antenas de bocina multimodo para excitar un haz gaussiano fundamental de alta pureza 

      Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna; Teniente Vallinas, Jorge Upna; Sorolla Ayza, Mario Upna (1996)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, we present an original and optimal multimode horn antenna design to excite the fundamental Gaussian beam from an overmoded waveguide. In particular, we focus the study in overmoded circular corrugated ...
    • Diseño y medida de una antena choke-gaussiana 

      Goñi Campión, David; Teniente Vallinas, Jorge Upna; Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna (2002)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      A new design of corrugated horn antenna for global earth coverage from a geostationary satellite to obtain very low sidelobes and crosspolar levels with a really compact design in a quite wide bandwidth is presented in ...
    • Estado del arte de las antenas que combinan corrugaciones horizontales y verticales 

      Teniente Vallinas, Jorge Upna; Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna (2005)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      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 ...
    • Estudio de resonancias parásitas en antenas corrugadas 

      Teniente Vallinas, Jorge Upna; Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna (2001)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      A theoretical study reinforced with practical measurements about the origin of the return loss spikes in corrugated horn antennas is presented in this paper. These spikes are directly related to the periodic structure ...
    • Evanescently fed electromagnetic band-gap horn antennas and arrays 

      Khromova, Irina Upna; Ederra Urzainqui, Íñigo Upna; Teniente Vallinas, Jorge Upna; Gonzalo García, Ramón Upna; Esselle, Karu P. (IEEE, 2012)   Artículo / Artikulua  OpenAccess
      The design of a horn antenna based on electromagnetic band-gap structures (EBGs) and fed by evanescent fields in the containing periodic structure is presented. Such all-dielectric antennas can form compact arrays and ...
    • Experimental study of the antenna influence in RTLS based-on RFID 

      Crespo López, Gonzalo Upna; Teniente Vallinas, Jorge Upna; Ederra Urzainqui, Íñigo Upna; Gonzalo García, Ramón Upna (IEEE, 2012)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Nowadays Real-time localization systems (RTLS) are growing up very quickly but there are some remaining issues which need to be analyzed. This paper presents an experimental study that shows how different kind of antennas can ...
    • Gaussian profiled horn antennas 

      Gonzalo García, Ramón Upna; Teniente Vallinas, Jorge Upna; Río Bocio, Carlos del Upna (1999)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In many different applications parameters such efficiency, gain, directivity, etc., are really critical. By using the Gaussian techniques presented here, the radiating features of existing horn antenna systems can be ...
    • Generación del modo HE11 a partir de una guía circular lisa monomodo 

      Gonzalo García, Ramón Upna; Río Bocio, Carlos del Upna; Teniente Vallinas, Jorge Upna; Sorolla Ayza, Mario Upna (1996)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      In this paper, we present an original taper design to obtain the HE11 corrugated circular waveguide mode exciting with a pure TE11 monomode smooth circular waveguide mode. The proposed corrugated taper has a longitudinal ...
    • Generation of the HE11 mode in rectangular waveguide using gaussian techniques 

      Teniente Vallinas, Jorge Upna; Gonzalo García, Ramón Upna; Sorolla Ayza, Mario Upna; Río Bocio, Carlos del Upna (IEEE, 1999)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      A new and efficient design of a rectangular corrugated waveguide mode converter, from TE10 mode in a smooth rectangular monomode waveguide to HE11 mode in a corrugated rectangular waveguide, is proposed. The main idea ...