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Mostrando ítems 11-20 de 79
Redes de alimentación de agrupaciones basadas en CORPS
(2006)
Contribución a congreso / Biltzarrerako ekarpena,
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 -BFN ...
Designing feeding networks with CORPS: coherently radiating periodic structures
(2006)
Contribución a congreso / Biltzarrerako ekarpena,
The design of feeding networks in phased array systems results tricky since all the complex excitations should be
provided to all the radiating elements of the system. Where the number of radiating elements increases the ...
Lentes metálicas basadas en el fenómeno de transmisión extraordinaria para conseguir índices de refracción negativos
(2009)
Contribución a congreso / Biltzarrerako ekarpena,
In this communication we report plano-concave
and bi-concave metamaterial lenses based on the close stack of
subwavelegnth hole arrays. Contrary to what is expected from
cut-off holes, an engineered array of holes ...
Low profile multi-frequency dipole antenna array based on planar meta-surfaces
(IEEE, 2007)
Contribución a congreso / Biltzarrerako ekarpena,
In this paper, the radiation performance of a low profile multi-frequency dipole antenna array with a
planar meta-surface is presented. The meta-surface consists of two closely located parallel grids of short
dipoles and ...
Using CORPS-BFN to feed multibeam antenna systems
(2007)
Contribución a congreso / Biltzarrerako ekarpena,
In this paper, a simple example of application of the CORPS-BFN concept has been presented.
A multibeam antenna system is seen as a small part of the human eye, and therefore, improving the similarity of the
whole system ...
Planar DNG superstrate for dipole antenna gain enhancement
(2007)
Contribución a congreso / Biltzarrerako ekarpena,
In this paper, a volumetric double-negative (DNG) superstrate based on grids of dipoles and wires for dipole
antenna applications is proposed.
A novel PLL architecture
(2000)
Contribución a congreso / Biltzarrerako ekarpena,
A novel phase-locked loop scheme is
proposed in this paper, whose main distinguishing
features are infinite hold-in range, pull-out range
fractionally constant and also a ripple fractionally
constant. To this end, it ...
Design of low-cost smart accelerometers
(Universitat Politècnica de Catalunya, 2005)
Contribución a congreso / Biltzarrerako ekarpena,
The goal of this project is to design a low-cost smart accelerometer, making use of a piezoelectric
element as basic sensing material, and adding a
mixed-mode conditioning circuit.
Computation of greatest common divisor for the blind deconvolution of transient impulsive signals
(Universitat Politècnica de Catalunya, 2005)
Contribución a congreso / Biltzarrerako ekarpena,
We propose a new blind deconvolution method for transient impulsive signals in a single input
– multiple output (SIMO) system. The method
exploits the data redundancy inherent to SIMO
multichannel systems to obtain an ...
Nuevas técnicas para el diseño de antenas de bocina corrugadas
(2004)
Contribución a congreso / Biltzarrerako ekarpena,
The present paper deals with the design of modern corrugated horn antennas for extremely low sidelobe level with the use of the well known corrugated Gaussian Profiled Horn Antenna (corrugated GPHA’s) to improve the radiation ...