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Metamaterials as super-substrate to enhance dipole antenna performances
(2004)
Contribución a congreso / Biltzarrerako ekarpena,
In this work, pass band properties of Left Handed Media (LHM) are demonstrated. These properties have been used in order to make a LHM super-substrate that is put over a dipole antenna. This super-substrate is going to ...
Dipolos y metamateriales: mejora de las características de radiación
(2004)
Contribución a congreso / Biltzarrerako ekarpena,
In this work, pass band properties of Left Handed Media (LHM) are demonstrated. These properties have been used in order to make a LHM super-substrate that is put over a dipole antenna. This super-substrate is going to ...
Blind spot mitigation in phased array antenna using metamaterials
(IEEE, 2014)
Contribución a congreso / Biltzarrerako ekarpena,
In this work, a metaradome based on a fakir’s bed
of nails is designed and tested in order to suppress the blind
directions of a 100-element antenna array. The antenna is a
microstrip array designed to operate in X-band. ...
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 ...
Research on metamaterials for antenna applications
(2005)
Contribución a congreso / Biltzarrerako ekarpena,
During the last 20 years a lot of attention has been paid to apply Electromagnetic Band Gap (EBG) technology
in different frequency ranges, from microwaves to optics. EBG technology is based on the use of periodic structures ...
Design of a planar meta-surface based on dipoles and wires for antenna applications
(2006)
Contribución a congreso / Biltzarrerako ekarpena,
In this paper, the design of a planar meta-surface based
on dipoles and wires is presented. The unit cell is formed
by three independent layers, which contain two parallel
dipoles and one wire. The behaviour of these ...
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 ...
Meta-material behaviour of the new Coherently Radiating Periodic Structures (CORPS)
(2005)
Contribución a congreso / Biltzarrerako ekarpena,
In this paper, the study of the new Coherently Radiating Periodic Structures (CORPS) like a Metamaterial
sets out. The shape of the structure under study is composed by two different layers, one layer is
an array of ...
Desfasadores para microstrip empleando metamateriales
(2005)
Contribución a congreso / Biltzarrerako ekarpena,
In this paper an application of LH materials at
microwave frequencies (10GHz) is presented. A compact
quarter-wave impedance transformer is proposed using
alternating sections of left handed media (LHM) and
conventional ...
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 ...