Listar Dpto. Ingeniería Eléctrica y Electrónica - Ingeniaritza Elektriko eta Elektronikoa Saila por título
Mostrando ítems 270-289 de 648
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A general beam-forming network made with CORPS
A new beam-forming network concept is introduced. This network is based in the design principles of CORPS. The new proposed structure presents an improvement in design over the traditional beam-forming network since, ... -
Generation of lossy mode resonances by deposition of high-refractive-index coatings on uncladded multimode optical fibers
A comparative study of lossy mode resonances generated by depositing two different materials is presented. The two materials selected are indium tin oxide (ITO) and indium oxide. The two materials present different ... -
Generation of lossy mode resonances with absorbing thin-films
The generation of lossy mode resonances with absorbing thin-films is analyzed with electromagnetic theory. The main differences with surface plasmon resonances are presented and some rules are given towards an optimum ... -
Generation of selective fringes with cascaded long-period gratings
The inscription of cascaded long-period gratings of different periods in optical fiber permits us to obtain both narrowband and wideband filters in the same spectrum. If used as an optical transducer, it may permit us ... -
Generation of surface plasmon resonance and lossy mode resonance by thermal treatment of ITO thin-films
Silicon wafers coated with IndiumTinOxide (ITO) by application of sputtering technique have been characterized after different post-annealing techniques, showing that this last factor is critical for the quality of the ... -
Generation of the HE11 mode from monomode smooth circular waveguide
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
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 ... -
Geometry influence on the transmission spectra of dielectric single layers of spheres with different compactness
The transmission of spectra of different dielectric spheres single layer arrangements has been measured. High dielectric permittivity ε =7 spheres of several millimeters of diameter were used to build the samples whose ... -
Geometry-invariant resonant cavities
Resonant cavities are one of the basic building blocks in various disciplines of science and technology, with numerous applications ranging from abstract theoretical modelling to everyday life devices. The eigenfrequencies ... -
Giant sensitivity of optical fiber sensors by means of lossy moderesonance
Here we show an optical refractometer with a giant sensitivity of 304,360 nm per refractive index unit(nm/RIU). This sensitivity corresponds to a resolution of 3.28 × 10−9RIU if a standard optical spectrumanalyzer with a ... -
Glottal spectrum based inverse filtering
In this paper a new inverse filtering technique for the time-domain estimation of the glottal excitation is presented. This approach uses the DAP modeling for the vocal tract characterization, and a spectral model for the ... -
Gramática de las gráficas: pistas para mejorar las representaciones de datos
Periodistas, científicos, sociólogos, ingenieros, economistas... En multitud de profesiones nos encontramos con la necesidad de interpretar o de realizar gráficas. Las gráficas son elementos habituales en multitud de ... -
Grid integration of large-scale PV plants
Over the last few years, the considerable increase in the number of multi-MW PV plants has led transmission system operators (TSO) to express concern over potential PV power fluctuations caused by transient clouds. As a ... -
Growth in the number of references in engineering journal papers during the 1972-2013 period
The number of references per paper, perhaps the best single index of a journal’s scholarliness, has been studied in different disciplines and periods. In this paper we present a four decade study of eight engineering ... -
Hedgehog subwavelength hole arrays: control over the THz enhanced transmission
By backing or sandwiching a holey metal layer with or between isotropic dielectric slabs, additional peaks of transmission within the long-wavelength regime arise as a result of the induced transverse magnetic (TM) or ... -
High aperture efficiency wide corrugations bull’s-eye antenna working at 60 GHz
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 ... -
High efficient dipole antennas by using left-handed superstrates
This paper deals with pass band properties of Left Handed Media (LHM) to enhance dipole antenna performances. The LHM properties have been used in order to make high directivity antennas with good return loss features. The ... -
High frequency power transformers with foil windings: maximum interleaving and optimal design
Foil conductors and primary and secondary interleaving are normally used to minimize winding losses in high frequency transformers used for high-current power applications. However, winding interleaving complicates the ... -
High order mode beam waveguide for technological medium power millimeter wave applications
The use of medium power millimeter wave CW gyrotrons (10- 30 kW and 30-100 GHz) has several potential applications in advanced materials processing. Since a stochastic field distribution in the applicator is desirable ... -
High resolution polarization-independent highbirefringence fiber loop mirror sensor
In this work, two all polarization-maintaining (PM) highbirefringence (Hi-Bi) fiber loop mirrors (FLM) which are immune to external polarization perturbations are validated both theoretically and experimentally. Simplified ...