Envíos recientes

  • Electroinductive waves in chain of complementary metamaterial elements 

    Beruete Díaz, Miguel; Falcone Lanas, Francisco Javier; Freire, M.J.; Marqués, R.; Baena, J.D. (AIP Publishing, 2006)   Artículo / Artikulua
    Electronductive waves supported by chains of resonators drilled on a metallic plate are presented. Propagation of energy comes as a consequence of the electric coupling between these resonators. Therefore, these waves ...
  • 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 ...
  • Review on electromagnetic band gap technology and applications 

    Maagt, Peter de; Gonzalo García, Ramón; Vardaxoglou, J. (URSI, 2004)   Artículo / Artikulua
    This paper reviews the primary application areas of Electromagnetic BandGap (EBG) technology at microwave and (sub)millimetre wave frequencies. Examples of EBG configurations in the microwave region are shown and include ...
  • 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 ...
  • A stopband filter design using a 1-D non-periodic defected ground structure 

    Garde Irigoyen, Ieltxu Aitor; Río Bocio, Carlos del (Wiley, 2003)   Artículo / Artikulua
    The one-dimensional (1-D) defected ground structure is used to control the cutoff frequency characteristic. In this paper three non-periodic filters are built, in order to show the versatility of the DGS. Five unit cells ...
  • Simple modelling of DGS to design 1D-PBG low-pass filters 

    Garde Irigoyen, Ieltxu Aitor; Yábar, Miguel Javier; Río Bocio, Carlos del (Wiley, 2003)   Artículo / Artikulua
    The use of defected ground structures (DGS) is being intensively explored by the microwave filter designer community. The DGSs are one possible implementation of a 1D Photonic Band Gap (1D-PBG) where some defect structures ...
  • Ultra-wide band corrugated profiled horn antenna design 

    Teniente Vallinas, Jorge; Gonzalo García, Ramón; Río Bocio, Carlos del (IEEE, 2002)   Artículo / Artikulua
    Nowadays, an increasing number of applications need stable radiation patterns with low sidelobes and low crosspolar levels in a very wide bandwidth. Gaussian Profiled Horn Antennas (GPHA’s) have demonstrated its feasibility ...
  • 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 ...
  • Cyclic coding for Brillouin optical time-domain analyzers using probe dithering 

    Iribas Pardo, Haritz; Loayssa Lara, Alayn; Sauser, Florian; Llera, Miguel; Le Floch, Sébastien (Optical Society of America, 2017)   Artículo / Artikulua
    We study the performance limits of mono-color cyclic coding applied to Brillouin optical time-domain analysis (BOTDA) sensors that use probe wave dithering. BOTDA analyzers with dithering of the probe use a dual-probe-sideband ...
  • Simultaneous measurement of humidity and vibration based on a nanowire sensor system using Fast Fourier Transform technique 

    Rota Rodrigo, Sergio; López Aldaba, Aitor; Pérez Herrera, Rosa Ana; López Bautista, María del Carmen; Esteban, Óscar; López-Amo Sáinz, Manuel (IEEEOptical Society of America, 2016)   Artículo / Artikulua
    This paper presents a new sensor system for vibration and relative humidity measurements based on its interaction with the evanescent field of a microwire. The interrogation of the sensing head is carried out by monitoring ...
  • Design of MOS-translinear multiplier/dividers in analog VLSI 

    López Martín, Antonio; Carlosena García, Alfonso (Hindawi Publishing Corporation, 2000)   Artículo / Artikulua
    A general framework for designing current-mode CMOS analog multiplier/divider circuits based on the cascade connection of a geometric-mean circuit and a squarer/ divider is presented. It is shown how both building blocks ...
  • Effect of the glottal source and the vocal tract on the partials amplitude of vibrato in male voices 

    Arroabarren Alemán, Ixone; Carlosena García, Alfonso (Acoustical Society of America, 2006)   Artículo / Artikulua
    In this paper the production of vocal vibrato is investigated. The most relevant features of the acoustical vibrato signal, frequency and amplitude variations of the partials, will be related to the voice production ...
  • 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 ...
  • 3D-printed 96 GHz bull’s-eye antenna with off-axis beaming 

    Beaskoetxea Gartzia, Unai; Maci, Stefano; Navarro Cía, Miguel; Beruete Díaz, Miguel (IEEE, 2017)   Artículo / Artikulua
    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 ...
  • Diffusive-light invisibility cloak for transient illumination 

    Orazbayev, Bakhtiyar; Beruete Díaz, Miguel; Martínez, Alejandro; García Meca, Carlos (American Physical Society, 2016)   Artículo / Artikulua
    Invisibility in a diffusive-light-scattering medium has been recently demonstrated by employing a scattering-cancellation core-shell cloak. Unlike nondiffusive cloaks, such a device can be simultaneously macroscopic, ...
  • Experimental demonstration of metasurface-based ultrathin carpet cloaks for millimetre waves 

    Orazbayev, Bakhtiyar; Mohammadi Estakhri, Nasim; Alù, Andrea; Beruete Díaz, Miguel (Wiley, 2016)   Artículo / Artikulua
    A metasurface carpet cloak for millimeter-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 ...
  • Polarization diversity scheme for BOTDA sensors based on a double orthogonal pump interaction 

    Urricelqui Polvorinos, Javier; López Fernandino, Felipe; Sagüés García, Mikel; Loayssa Lara, Alayn (IEEE, 2015)   Artículo / Artikulua
    We introduce a Brillouin optical time domain analysis (BOTDA) sensor deploying a novel polarization diversity technique based on the use of two orthogonal pump pulses which simultaneously interact with a phase modulated ...
  • Synthesis of Brillouin frequency shift profiles to compensate non-local effects and Brillouin induced noise in BOTDA sensors 

    Urricelqui Polvorinos, Javier; Sagüés García, Mikel; Loayssa Lara, Alayn (Optical Society of America, 2014)   Artículo / Artikulua
    We present a novel technique for Brillouin optical time domain analysis (BOTDA) sensors that simultaneously compensates non local effects and reduces Brillouin noise. The technique relies on the wavelength modulation of ...
  • Phasorial differential pulse-width pair technique for long-range Brillouin optical time-domain analysis sensors 

    Urricelqui Polvorinos, Javier; Sagüés García, Mikel; Loayssa Lara, Alayn (Optical Society of America, 2014)   Artículo / Artikulua
    We introduce a novel phasorial differential pulse width pair (PDPP) method for Brillouin optical time domain analysis (BOTDA) sensors that combines spatial resolution enhancement with increased tolerance to non local ...

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