Sánchez-Escuderos, Daniel; Ferrando Bataller, Miguel; Herranz Herruzo, José Ignacio; Rodrigo Peñarrocha, Vicent Miquel(Institute of Electrical and Electronics Engineers (IEEE), 2016)
This letter presents a periodic leaky-wave array antenna with circular polarization at millimeter-wave frequencies. The antenna is designed on the low-loss planar Goubau transmission line to maximize the radiation efficiency ...
Fernández-Vicente, Juan; Baños Lopez, Rocio; Doménech Gómez, José David; Domínguez-Horna, Carlos; Muñoz Muñoz, P.(Institution of Electrical Engineers, 2019-04)
[EN] An inverted lateral taper with one vertical discrete step was designed for a medium confinement silicon nitride waveguide platform in the C-band, as a chip edge coupler, with a predicted insertion loss of 0.58¿dB. The ...
We experimentally demonstrate a low-loss multilayered metamaterial exhibiting a double-negative refractive index in the visible spectral range. To this end, we exploit a second-order magnetic resonance of the so-called ...
Gómez Requena, Crispín(Universitat Politècnica de València, 2010-11-08)
Actualmente, los clústeres de PCs están considerados como una alternativa eficiente a la hora de construir supercomputadores en los que miles de nodos de computación se conectan mediante una red de interconexión. La red ...
[EN] Wireless electrophysiology opens important possibilities for neuroscience, especially for recording brain activity in more natural contexts, where exploration and interaction are not restricted by the usual tethered ...
Sánchez Diana, Luis David; Griol Barres, Amadeu; Lechago Buendía, Sergio; Brimont, Antoine Christian Jacques; Sanchis Kilders, Pablo(Institute of Electrical and Electronics Engineers (IEEE): OAJ, 2015-04)
[EN] Mach Zehnder interferometer (MZI) structures are widely used as optical switches in photonic integrated circuits. However, power consumption is still the key parameter to make such devices practical in the silicon ...
[EN] Efforts to fabricate low-power up converting solid-state systems have rapidly increased in the past decade because of their possible application in several fields such as
bio-imaging, drug delivery, solar harvesting ...
Moy-Li, Hon Ching; Sánchez-Escuderos, Daniel; Antonino Daviu, Eva; Ferrando Bataller, Miguel(Institute of Electrical and Electronics Engineers, 2017)
[EN] This letter proposes a low-profile horn antenna with radial corrugations. The depth and width of the corrugations are suitably chosen to excite the mode HE11 in the corrugated section. This mode spreads uniformly ...
[EN] This paper presents a low-profile Ultra Wide Band (UWB) antenna with polarization diversity for new 5G base stations. The antenna consists of a metallic ring capacitively fed with four circular monopoles and reinforced ...
Anisotropic and inhomogeneous metamaterial shells are studied in order to exploit all their resonant mode richness. These multilayer structures are based on a cylindrical distribution of radially dependent constitutive ...
Dolz Martínez, Vicent(Universitat Politècnica de València, 2020-10-13)
[EN] Artificial intelligence algorithms have experienced a dramatic
improvement in the last decade generating very precise models in all
fields of study. This has led us to a new problematic of mass data storage
and ...
[EN] As remote sensing (RS) images increase dramatically, the demand for remote sensing image retrieval (RSIR) is growing, and has received more and more attention. The characteristics of RS images, e.g., large volume, ...
Preconditioners for the Conjugate Gradient method are studied to solve the Newton system with symmetric positive definite (SPD) Jacobian. Following the theoretical work in Bergamaschi et al. (2011) [4] we start from a given ...
[EN] Let Ax = b be a large and sparse system of linear equations where A is a nonsingular matrix. An approximate solution is frequently obtained by applying preconditioned terations. Consider the matrix B = A + PQT where ...
González Gómez, Jorge(Universitat Politècnica de València, 2015-11-03)
This project consists of a study of the flow around low-‐rise buildings and how it interacts along the surfaces. To study that, two techniques will be covered: oil technique and Computational Fluid Dynamics ...
[EN] The catalytic subnanometric metal clusters with a few atoms can be regarded as an intermediate state between single atoms and metal nanoparticles (>1 nm). Their molecule-like electronic structures and flexible geometric ...
Ozuna López, César; Cárcel Carrión, Juan Andrés; Walde, Per M.; García Pérez, José Vicente(Elsevier, 2014-06)
[EN] Low-temperature convective drying could be considered an affordable alternative to conventional freeze-drying
for foodstuffs. The process intensification should be based on non-thermal technologies, such as power ...
[EN] The combination of flexible-printed substrates and conventional electronics leads to flexible hybrid electronics. When fabrics are used as flexible substrates, two kinds of problems arise. The first type is related ...
Parra Gómez, Jorge; Navarro-Arenas, Juan; Menghini, Mariela; Recaman, Maria; Pierre-Locquet, Jean; Sanchis Kilders, Pablo(American Institute of Physics, 2021-12-03)
[EN] Optical limiters are nonlinear devices that encompass applications from device protection to activation functionalities in neural networks. In this work, we report an optical limiter on silicon photonics based on an ...
[EN] In this paper we present several heuristic algorithms and a cutting-plane algorithm for the Windy Rural Postman Problem. This problem contains several important Arc Routing Problems as special cases and has very ...