Listar Artículos de revista DIEE - IEES Aldizkari artikuluak por título
Mostrando ítems 199-218 de 391
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Magnetic dipole super-resonances and their impact on mechanical forces at optical frequencies
Artificial magnetism enables various transformative optical phenomena, including negative refraction, Fano resonances, and unconventional nanoantennas, beamshapers, polarization transformers and perfect absorbers, and ... -
Manipulating thermal emission with spatially static fluctuating fields in arbitrarily shaped epsilon-near-zero bodies
The control and manipulation of thermal fields is a key scientific andtechnological challenge, usually addressed with nanophotonic struc-tures with a carefully designed geometry. Here, we theoreticallyinvestigate a different ... -
Mapping smooth profile H-plane rectangular waveguide structures to substrate integrated waveguide technology
The guidelines for mapping rectangular waveguide structures to substrate integrated waveguide (SIW) technology are well understood for structures with straight walls. However, the mapping of a smooth profile structure from ... -
Measurement of polarization dependent loss, polarization mode dispersion and group delay of optical components using swept optical single sideband modulated signals
We introduce a novel method for high wavelength-resolution measurement of polarization-averaged group delay, polarization dependent loss and polarization mode dispersion of optical components using swept optical single ... -
Mechanical 144GHz beam steering with all-metallic epsilon-near-zero lens antenna
An all-metallic steerable beam antenna composed of an ε-near-zero (ENZ) metamaterial lens is experimentally demonstrated at 144 GHz (λ0 = 2.083 mm). The ENZ lens is realized by an array of narrow hollow rectangular waveguides ... -
A metamaterial T-junction power divider
A metamaterial based compact microstrip T-junction power divider working at 10 GHz is proposed. The metamaterial unit cell consists of microstrip gaps and via holes whose behavior is equivalent to the combination of ... -
Metasurface-based ultrathin carpet cloaks for millimeter waves
A metasurface carpet cloak for millimetre-wave range with polarization independent performance is experimentally demonstrated. It is shown that the cloak is able to mimic the ground plane by fully restoring the amplitude ... -
Methodology for sizing stand-alone hybrid systems: a case study of a traffic control system
This paper proposes a methodology for sizing stand-alone hybrid photovoltaic-wind power generation systems. This methodology makes it possible to optimise the overall performance of the stand-alone system components, based ... -
Métodos de procesamiento y análisis de señales electromiográficas
La electromiografía clínica es una metodología de registro y análisis de la actividad bioeléctrica del músculo esquelético orientada al diagnóstico de las enfermedades neuromusculares. Las posibilidades de aplicación y el ... -
Micro and nanostructured materials for the development of optical fibre sensors
The measurement of chemical and biomedical parameters can take advantage of the features exclusively offered by optical fibre: passive nature, electromagnetic immunity and chemical stability are some of the most relevant ... -
Micro-displacement sensor based on a hollow-core photonic crystal fiber
A sensing head based on a hollow-core photonic crystal fiber for in-reflection measurement of micro-displacements is presented. The sensing structure takes advantage of the multimodal behavior of a short segment of hollow-core ... -
Micro-displacement sensor combined with a fiber ring interrogated by an optical time-domain reflectometer
A micro-displacement sensing head based on two aligned cleaved fibers inserted into an optical fiber ring and interrogated by an OTDR is presented. The sensor configuration is characterized for measuring both longitudinal ... -
Mid-infrared plasmonic inductors: enhancing inductance with meandering lines
We present a mid-infrared inductor that when applied to an extraordinary transmission hole array produces a strong redshift of the resonant peak accompanied by an unprecedented enlargement of the operation bandwidth. The ... -
Millimeter-wave phase resonances in compound reflection gratings with subwavelength grooves
Experimental evidence of phase resonances in a dual-period reflection structure comprising three subwavelength grooves in each period is provided in the millimeter-wave regime. We have analyzed and measured the response ... -
Mode transition in complex refractive index coated single-mode–multimode–single-mode structure
By coating a single-mode–multimode–single-mode (SMS) structure with a high refractive index thin-film it is possible to obtain a transition of modes for specific combinations of thin-film thickness, thinfilm refractive ... -
Modeling and parameter extraction of test fixtures for MOSFET on-wafer measurements up to 60 GHz
We present a circuit model and parameter determination methodology for test fixtures used for on-wafer S-parameter measurements on CMOS devices. The model incorporates the frequency dependence of the series resistances and ... -
Modeling of small wind turbines based on PMSG with diode bridge for sensorless maximum power tracking
The Permanent Magnet Synchronous Generator (PMSG) with diode bridge is frequently used in small Wind Energy Conversion Systems (WECS). This configuration is robust and cheap, and therefore suitable for small WECS. In order ... -
Modelling fibrillation potentials: analysis of time parameters in the muscle intracellular action potential
A single fibre action potential (SFAP) can be modelled as the convolution of a biolectrical source and a filter impulse response. In the Dimitrov-Dimitrova (D-D) convolutional model, the first temporal ... -
Modelling of PEM fuel cell performance: steady-state and dynamic experimental validation
This paper reports on the modelling of a commercial 1.2 kW proton exchange membrane fuel cell (PEMFC), based on interrelated electrical and thermal models. The electrical model proposed is based on the integration of the ... -
Models for gaze tracking systems
One of the most confusing aspects that one meets when introducing oneself into gaze tracking technology is the wide variety, in terms of hardware equipment, of available systems that provide solutions to the same matter, ...