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Mostrando ítems 301-310 de 456
Horn antenna lens for multi-beam applications
(2010)
Contribución a congreso / Biltzarrerako ekarpena,
A spherical discrete lens antenna based on the back-toback
combination of two choked-horn antennae arrays
interconnected through smooth waveguides sections
implementing the spherical phasing law, has been
designed, simulated ...
Resolution capabilities of future THz cameras
(2010)
Contribución a congreso / Biltzarrerako ekarpena,
THz technology for developing imaging
systems has recently aroused great interest, mainly due
to the large number of applications in which these
frequencies can be used: security, vision in hard
environments, etc.
In this ...
Suberb gaussian beam efficiency corrugated horn antennas
(2010)
Contribución a congreso / Biltzarrerako ekarpena,
In this paper we are presenting the possibilities of
corrugated horn antennas that combine horizontal and
vertical corrugations.
Resolution capabilities of future THz cameras
(Radioengineering Society, 2011)
Artículo / Artikulua,
THz technology for developing imaging systems
has recently aroused great interest, mainly due to the large
number of applications in which these frequencies can be
used: security, vision in hard environments, etc.
In ...
Circuit approach to the minimal configuration of terahertz anomalous extraordinary transmission
(American Institute of Physics, 2011)
Artículo / Artikulua,
In this letter we present an in-depth circuit analysis of anomalous extraordinary transmission ET
through subwavelength slit and hole arrrays loaded by a dielectric slab. We show the key role played
by the thickness of the ...
Design of concentric ring antenna arrays for isoflux radiation in GEO satellites
(Institute of Electronics, Information and Communication Engineers (IEICE), 2011)
Artículo / Artikulua,
The design of concentric rings arrays for isoflux radiation is reported in this paper. This design considers the reduction of the side lobe level and the isoflux radiation requirements for Geostationary Earth Orbit (GEO) ...
Corrugated horn antenna noise temperature characterisation for the NRL water vapor millimeter-wave spectrometer project
(2011)
Contribución a congreso / Biltzarrerako ekarpena,
In this paper the antenna noise temperature for two different corrugated horn antennas (old model and new model) for NRL WVMS is being characterized. The whole optical system will be simulated with Ticra’s
GRASP software, ...
Analysis of surface-plasmon-like modes under an engineering perspective
(2011)
Contribución a congreso / Biltzarrerako ekarpena,
In this communication we show how one can exploit equivalent circuits to analyze surface-plasmon-like modes (slit and hole arrays, Sievenpiper mushrooms and coaxial hole arrays) and to propose new designs with outstanding ...
New regimes to achieve enhanced transmission through subwavelength hole arrays
(2011)
Contribución a congreso / Biltzarrerako ekarpena,
In this communication we present millimetre- and THz-waves experimental confirmation of enhanced
transmission through subwavelength hole arrays with rectangular lattice when the incident electric field is parallel to ...
Discrete lenses for multibeam applications
(2011)
Contribución a congreso / Biltzarrerako ekarpena,
The capability of having many
different beams illuminating the earth surface from a
geostationary satellite has been an issue of interest
during the last few years.
The need of increasing the services provided ...