Envíos recientes

  • Electromagnetic band gap technology for millimetre wave applications 

    Ederra Urzainqui, Íñigo (2004)   Tesis doctoral/Doktoretza tesia
    En esta tesis se ha estudiado el uso de estructuras Electromagnetic Bandgap (EBG) para frecuencias en la banda de las millimétricas. Estas frecuencias son muy apropiadas para aplicaciones de generación de imágenes ...
  • Millimeter-wave extraordinary transmission: connection to metamaterials and technological applications 

    Beruete Díaz, Miguel (2006)   Tesis doctoral/Doktoretza tesia
    The phenomenon of Enhanced Transmission also happens in the millimeter wave range, as it happened in optical frequencies. This experimental fact shows that this is a phenomenon mostly linked to the periodic structure regardless ...
  • Diseño de guías de onda cuasi-ópticas para modos gaussianos de orden superior 

    Río Bocio, Carlos del (1996)   Tesis doctoral/Doktoretza tesia
    En este trabajo se presenta un nuevo método de diseño de guías de onda cuasi-ópticas para modos gaussianos, a frecuencias milimétricas. En concreto, se centrará en la generación de modos gaussianos de orden superior, ...
  • Amorphous glass-coated ferromagnetic wires in microwave engineering 

    Liberal Olleta, Íñigo (2013)   Tesis doctoral/Doktoretza tesia
    En esta tesis se ha estudiado el uso de hilos ferromagnéticos recubiertos de vidrio en ingeniería de microondas. Para este fin, se han formulado modelos analíticos y equivalentes circuitales de la interacción entre un ...
  • Modern corrugated horn antennas 

    Teniente Vallinas, Jorge (2003)   Tesis doctoral/Doktoretza tesia
    La presente tesis doctoral ha tenido como propósito sentar las bases de diseño de las antenas corrugadas de última generación que se vienen desarrollando desde 1995 en el seno del Grupo de Antenas de la Universidad ...
  • Study of photonic crystal structures and their applications in the field of antennas 

    Gonzalo García, Ramón (2000)   Tesis doctoral/Doktoretza tesia
    El propósito principal perseguido en esta tesis ha sido el diseño de estructuras “Photonic Crystal” y sus aplicaciones como substratos para antenas. Estos “Photonic Crystal” se definen como estructuras periódicas en una, ...
  • Technical specifications and quality control procedures for reducing the uncertainty in PV installations: results of the FP7 project PVCROPS 

    Martínez Moreno, Francisco; Lorenzo Pigueiras, Eduardo; Narvarte Fernández, Luis; Moretón Villagra, Rodrigo; Tyutyundzhiev, Nicolay; Parra Laita, Íñigo de la (EU PVSEC, 2015)   Congreso / Biltzarra
    PVCROPS (PhotoVoltaic Cost r€duction, Reliability, Operational performance, Prediction and Simulation) is a project within the European Framework Programme 7 whose objectives are: improving the performance, reliability ...
  • Implementation and control of a residential electrothermal microgrid based on renewable energies, a hybrid storage system and demand side management 

    Pascual Miqueleiz, Julio María; Sanchís Gúrpide, Pablo; Marroyo Palomo, Luis (MDPI, 2014)   Artículo / Artikulua
    This paper proposes an energy management strategy for a residential electrothermal microgrid, based on renewable energy sources. While grid connected, it makes use of a hybrid electrothermal storage system, formed by a ...
  • All-metallic ε-near-zero (ENZ) lens based on ultra-narrow hollow rectangular waveguides: experimental results 

    Orazbayev, Bakhtiyar; Torres Landívar, Víctor; Pacheco Peña, Víctor; Falcone Lanas, Francisco Javier; Teniente Vallinas, Jorge; Beruete Díaz, Miguel; Sorolla Ayza, Mario; Navarro Cía, Miguel; Engheta, Nader (IEEE, 2014)   Congreso / Biltzarra
    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 ...
  • Low profile THz periodic leaky-wave antenna 

    Beaskoetxea Gartzia, Unai; Beruete Díaz, Miguel; Rodríguez Ulibarri, Pablo; Etayo Salinas, David; Sorolla Ayza, Mario; Navarro Cía, Miguel; Zehar, Mokhtar; Blary, Karine; Chahadih, Abdallah; Han, Xiang-Lei; Akalin, Tahsin (IEEE, 2014)   Congreso / Biltzarra
    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 ...
  • Optimization of a pin surface as a solution to suppress cavity modes in a packaged W-band microstrip receiver 

    Rebollo Mugueta, Ainara; Gonzalo García, Ramón; Íñigo Ederra Urzainqui (IEEE, 2014)   Artículo / Artikulua
    A pin surface structure has been used in the upper metal plate of a packaged W-band RF front-end receiver in order to suppress the propagation of unwanted modes. A full parametric analysis of the periodic structure within ...
  • A multipolar analysis of near-field absorption and scattering processes 

    Liberal Olleta, Íñigo; Ederra Urzainqui, Íñigo; Gonzalo García, Ramón; Ziolkowski, Richard W. (IEEE, 2013)   Artículo / Artikulua
    A multipolar formulation is adopted to investigate the absorption and scattering processes involved in near-field interactions. This approach allows one to determine the upper bounds for the absorbed and radiated powers ...
  • Least upper bounds of the powers extracted and scattered by bi-anisotropic particles 

    Olleta Liberal, Íñigo; Ra´di, Younes; Gonzalo García, Ramón; Ederra Urzainqui, Íñigo; Tretyakov, Sergei, A.; Ziolkowski, Richard W. (IEEE, 2014)   Artículo / Artikulua
    The least upper bounds of the powers extracted and scattered by bi-anisotropic particles are investigated analytically. A rigorous derivation for particles having invertible polarizability tensors is presented, and the ...
  • Parametric study of pin surface used to suppress undesired modes in a packaged W-band microstrip receiver 

    Rebollo Mugueta, Ainara; Maestrojuán Biurrun, Itziar; Larumbe Gonzalo, Belén; Gonzalo García, Ramón; Íñigo Ederra Urzainqui (IEEE, 2013)   Congreso / Biltzarra
    A pin surface structure has been used in order to suppress undesired modes in a packaged W-band RF front-end receiver. A parametric analysis has been carried out in order to determine the optimum dimensions. Resonances ...
  • Near-field electromagnetic trapping through curl-spin forces 

    Liberal Olleta, Íñigo; Ederra Urzainqui, Íñigo; Gonzalo García, Ramón; Ziolkowski, Richard W. (American Physical Society, 2013)   Artículo / Artikulua
    Near-field electromagnetic trapping of particles is generally obtained bymeans of gradient forces. In this paper, we discuss the attractive behavior of curl-spin forces, as well as their potential for near-field ...
  • Experimental study of the antenna influence in RTLS based-on RFID 

    Crespo López, Gonzalo; Teniente Vallinas, Jorge; Ederra Urzainqui, Íñigo; Gonzalo García, Ramón (IEEE, 2012)   Congreso / Biltzarra
    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 ...
  • Electromangetic force density in electrically and magnetically polarizable media 

    Liberal Olleta, Íñigo; Ederra Urzainqui, Íñigo; Gonzalo García, Ramón; Ziolkowski, Richard W. (American Physical Society, 2013)   Artículo / Artikulua
    The force density induced by electromagnetic fields in electrically and magnetically polarizable media is studied analytically. Different formulations of the force density as a function of field-related quantities, ...
  • Circuit approach to the minimal configuration of terahertz anomalous extraordinary transmission 

    Beruete Díaz, Miguel; Navarro Cía, Miguel; Kuznetsov, Sergei A.; Sorolla Ayza, Mario (American Institute of Physics, 2011)   Artículo / Artikulua
    In this letter we present an in-depth circuit analysis of anomalous extraordinary transmission ET through subwavelength slit and hole arrrays loaded by a dielectric slab. We show the key role played by the thickness of the ...
  • Corrugated horn antenna noise temperature characterisation for the NRL water vapor millimeter-wave spectrometer project 

    Teniente Vallinas, Jorge; Gómez, R.M.; Maestrojuán Biurrun, Itziar; Rebollo Mugueta, Ainara; Gonzalo García, Ramón; Río Bocio, Carlos del (2011)   Congreso / Biltzarra
    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, ...
  • The beauty of anisotropy in extraordinary transmission fishnet metamaterials 

    Navarro Cía, Miguel; Beruete Díaz, Miguel; Sorolla Ayza, Mario (2011)   Congreso / Biltzarra
    In this work, we explore both numerically and experimentally, the possibility to obtain positive and negative refraction regimes that depend on the wave polarization, exploiting the strong anisotropy of extraordinary ...

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