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Hyperbolic lens antenna in groove gap waveguide technology at sub-millimeter waves
(IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena,
In this paper, a flat hyperbolic lens antenna using Groove Gap Waveguide (GGW) technology is designed at 300 GHz. A GGW horn antenna is used to feed the metamaterial lens placed in a parallel plate waveguide (PPW), in order ...
Evolutionary algorithms applied to multi-layered radiative cooling metamaterials
(IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena,
A newly design method for designing multi-layered radiative cooling metamaterials based on genetic algorithms (GAs) is exposed. The developed GA has been tested in three cases, resulting in three different structures that ...
Experimental demonstration of deeply subwavelength dielectric sensing with epsilon-near-zero (ENZ) waveguides
(American Institute of Physics, 2022)
Artículo / Artikulua,
In this Letter, an all metallic sensor based on ε-near-zero (ENZ) metamaterials is studied both numerically and experimentally when working at microwave frequencies. To emulate an ENZ medium, a sensor is made by using a ...
Tenderness of PGI "Ternera de Navarra" beef samples determined by FTIR-MIR spectroscopy
(MDPI, 2022)
Artículo / Artikulua,
Understanding meat quality attribute changes during ageing by using non-destructive techniques is an emergent pursuit in the agroindustry research field. Using beef certified samples from the protected geographical indication ...
Compact pillbox reflector based on geodesic lens
(IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena,
We propose a pillbox antenna in combination with a geodesic lens at 60 GHz. The antenna is implemented in a dual-layer parallel plate waveguide. The waves from a geodesic lens in a first layer, after being reflected by a ...
Enhancing the infrared and visible emission properties of calcium silicate hydrate for radiative cooling using metamaterials
(IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena,
Two periodic structures composed of metal cylinders with different orientations are used to improve the solar reflection of calcium silicate hydrate (CSH) while maintaining its atmospheric emission. Interesting effects ...
Design of multi-layered radiative cooling structures using evolutionary algorithms
(IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena,
In this work we present a novel way to design thinfilm radiative cooling metamaterials based on genetic algorithms.
Three simulations with different design constraints have been
done, resulting in three structures that ...