Envíos recientes

  • Characterization of microring filters for differential group delay applications 

    Doménech, D.; Chamorro Posada, P.; Fraile Pelaez, F.J.; Erro Betrán, María José; Tainta Ausejo, Santiago; Muriel, M.A.; Baños, R.; Bolten, J.; Kleinjans, H. (IEEEOptical Society of America, 2017)   Artículo / Artikulua
    The longitudinal offset technique permits to improve the accuracy of the coupling coefficients of integrated directional couplers and provides designs that can be easily implemented with current fabrication tolerances. ...
  • 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 ...
  • Nonbianisotropic complementary split ring resonators as angular selective metasurfaces 

    Rodríguez Ulibarri, Pablo; Beruete Díaz, Miguel (2017)   Artículo / Artikulua
    In this work, a metasurface with unconventional angular performance and composed by a nonbianisotropic complementary split ring resonator (NB-CSRR) is analyzed numerically and experimentally. A numerical study comparing ...
  • Response of complementary split ring resonators in composite stratified substrate integrated waveguide 

    Pérez Escudero, José Manuel; Jarauta Ayensa, Eduardo; Falcone Lanas, Francisco Javier; Beruete Díaz, Miguel (American Institute of Physics, 2017)   Artículo / Artikulua
    In this work, the behavior of a Complementary Split Ring Resonator (CSRR) operating within the quasi-static resonance regime and embedded in a composite stratified Substrate Integrated Waveguide (SIW) with two different ...
  • Experimental and computational study on thermoelectric generators using thermosyphons with phase change as heat exchangers 

    Araiz Vega, Miguel; Martínez Echeverri, Álvaro; Astrain Ulibarrena, David; Aranguren Garacochea, Patricia (Elsevier, 2017)   Artículo / Artikulua
    An important issue in thermoelectric generators is the thermal design of the heat exchangers since it can improve their performance by increasing the heat absorbed or dissipated by the thermoelectric modules. Due to its ...
  • Fuzzy rule-based classification systems for multi-class problems using binary decomposition strategies: on the influence of n-dimensional overlap functions in the fuzzy reasoning method 

    Elkano Ilintxeta, Mikel; Galar Idoate, Mikel; Sanz Delgado, José Antonio; Bustince Sola, Humberto (Elsevier, 2016)   Artículo / Artikulua
    Multi-class classification problems appear in a broad variety of real-world problems, e.g., medicine, genomics, bioinformatics, or computer vision. In this context, decomposition strategies are useful to increase the ...
  • Metasurface-based ultrathin carpet cloaks for millimeter waves 

    Orazbayev, Bakhtiyar; Mohammadi Estakhri, Nasim; Alù, Andrea; Beruete Díaz, Miguel (2017)   Artículo / Artikulua
    A metasurface carpet cloak for millimetre-wave range with polarization independent performance is experimentally demonstrated. It is shown that the cloak is able to mimic the ground plane by fully restoring the amplitude ...
  • Description of bow-tie nanoantennas excited by localized emitters using conformal transformation 

    Pacheco Peña, Víctor; Beruete Díaz, Miguel; Fernández Domínguez, Antonio I.; Luo, Yu; Navarro Cía, Miguel (American Chemical Society, 2016)   Artículo / Artikulua
    The unprecedented advance experienced by nano- fabrication techniques and plasmonics research over the past few years has made possible the realization of nanophotonic systems entering into the so-called strong coupling ...
  • Unbalanced interval-valued OWA operators 

    Miguel Turullols, Laura de; Bustince Sola, Humberto; Barrenechea Tartas, Edurne; Pagola Barrio, Miguel; Fernández Fernández, Francisco Javier (Springer Berlin Heidelberg, 2016)   Artículo / Artikulua
    In this work, we introduce a new class of functions defned on the interval-valued setting. These functions extend classical OWA operators but allow for diferent weighting vectors to handle the lower bounds and the ...
  • Interval-valued Atanassov intuitionistic OWA aggregations using admissible linear orders and their application to decision making 

    Miguel Turullols, Laura de; Bustince Sola, Humberto; Pekala, Barbara; Bentkowska, Urszula; Silva, Ivanoska da; Bedregal, Benjamin; Mesiar, Radko; Ochoa Lezaun, Gustavo (IEEE, 2016)   Artículo / Artikulua
    Based on the definition of admissible order for interval-valued Atanassov intuitionistic fuzzy sets, we study OWA operators in these sets distinguishing between the weights associated to the membership and those associated ...
  • A framework for radial data comparison and its application to fingerprint analysis 

    Marco Detchart, Cedric; Cerrón González, Juan; Miguel Turullols, Laura de; López Molina, Carlos; Bustince Sola, Humberto; Galar Idoate, Mikel (Elsevier, 2016)   Artículo / Artikulua
    This work tackles the comparison of radial data, and proposes comparison measures that are further applied to fingerprint analysis. First, we study the similarity of scalar and non-scalar radial data, elaborated on previous ...
  • Evolution in time of L-fuzzy context sequences 

    Alcalde, Cristina; Burusco Juandeaburre, Ana; Bustince Sola, Humberto; Jurío Munárriz, Aránzazu; Sanz Delgado, José Antonio (Elsevier, 2016)   Artículo / Artikulua
    In this work, we consider a complete lattice L and we study L-fuzzy context sequences which represent the evolution in time of an L-fuzzy context. To carry out this study, in the first part of the paper, we consider n-ary ...
  • Increasing surface plasmons propagation via photonic nanojets with periodically spaced 3D dielectric cuboids 

    Pacheco Peña, Víctor; Minin, Igor V.; Minin, Oleg V.; Beruete Díaz, Miguel (MDPI, 2016)   Artículo / Artikulua
    A structure based on periodically arranged 3D dielectric cuboids connected by photonic nanojets (PNJs) is proposed with the aim of increasing the propagation distance of surface plasmon polaritons (SPPs) at the telecom ...