Listar Artículos de revista DIEC - IEKS Aldizkari artikuluak por título
Mostrando ítems 54-73 de 479
-
C and L band fiber lasers enhanced by ultrafast laser inscribed artificial backscatter reflectors
This letter presents an experimental comparison between two linear-cavity erbiumdoped fiber lasers (EDFL) assisted by two different artificial backscatter fiber-based reflectors. Both reflectors were inscribed by femtosecond ... -
The Canfranc Axion Detection Experiment (CADEx): search for axions at 90 GHz with Kinetic Inductance Detectors
We propose a novel experiment, the Canfranc Axion Detection Experiment (CADEx), to probe dark matter axions with masses in the range 330–460 μeV, within the W-band (80–110 GHz), an unexplored parameter space in the ... -
Characterization of multilayer coupling based on square complementary split ring resonator for multiport device implementation
The advent of context-aware environments and related applications demands a high degree of connectivity, with new spectral bands and related radio resource management functionalities in the current 5G bands and foreseen ... -
A Chebyshev transformer-based microstri-to-groove-gap-waveguide inline transition for MMIC packaging
The gap waveguide technology has become an alternative to millimeter- and submillimeter-wave electronic circuit packaging thanks to the loss reduction associated with its use. In this paper, a simplified design of an inline ... -
Class AB amplifier with enhanced slew rate and GBW
The design of a micropower class AB operational transconductance amplifier with large dynamic current to quiescent current ratio is addressed. It is based on a compact and power-efficient adaptive biasing circuit and a ... -
Cloud tomography applied to sky images: a virtual testbed
Two tomographic techniques are applied to two simulated sets of sky images with different cloud fraction. The Algebraic Reconstruction Technique (ART) is applied to optical depth maps from sky images to reconstruct 3-D ... -
CMOS first-order all-pass filter with 2-Hz pole frequency
A CMOS fully integrated all-pass filter with an extremely low pole frequency of 2 Hz is introduced in this paper. It has 0.08-dB passband ripple and 0.029-mm2 Si area. It has 0.38-mW power consumption in strong inversion ... -
Cobalt detection using fluorescent dye layers
In this paper, we report the preliminary results regarding the use of fluorescent dye calcein (C30H26N2O13) as a sensor for the detection of cobalt levels in aqueous solutions. The sensor cell based on calcein is built by ... -
El código internacional para los buques que operen en aguas polares y su incidencia en el transporte marítimo
(Aranzadi, 2022) Capítulo de libro / Liburuen kapitulua -
A combination of a vibrational electromagnetic energy harvester and a giant magnetoimpedance (GMI) sensor
An energy harvesting device combined with a giant magnetoimpedance (GMI) sensor is presented to analyze low frequency vibrating systems. An electromagnetic harvester based on magnetic levitation is proposed for the electric ... -
Combined dynamic programming and region-elimination technique algorithm for optimal sizing and management of lithium-ion batteries for photovoltaic plants
The unpredictable nature of renewable energies is drawing attention to lithium-ion batteries. In order to make full utilization of these batteries, some research works are focused on the management of existing systems, ... -
Combining radiative cooling and light trapping strategies for improved performance of PERC bifacial silicon solar cells
This work investigates the impact of combining light trapping and radiative cooling on bifacial solar panels. While several techniques have been proposed to enhance the efficiency of solar panels, their combination can ... -
Common-mode and phase-to-ground voltage reduction in back-to-back power converters with discontinuous PWM
Discontinuous space vector pulsewidth modulation (DSVPWM) techniques are an interesting option for three-phase, two-level power converters when efficiency is a key factor. Such is the case of back-to-back (B2B) power ... -
A compact CPW-fed ultra-wideband multi-input-multi-output (mimo) antenna for wireless communication networks
In this article, a compact coplanar waveguide (CPW) technique based ultra-wideband multiple-input-multiple-output (MIMO) antenna is proposed. The design is characterized by a broad impedance bandwidth starting from 3 GHz ... -
Compact groove diamond antenna in gap waveguide technology with broadband circular polarization at millimeter waves
In this paper, three compact antennas using the Ridge Gap Waveguide (RGW) technology working in the millimeter-wave band (60 GHz), with a high-purity and broadband circular polarization (CP) are numerically and experimentally ... -
A compact wide bandpass filter for satellite communications with improved out-of-band rejection
This paper presents a compact C-band bandpass filter with improved out-of-band rejection. It consists of a symmetric three-pole parallel coupled line microstrip loaded with complementary split ring resonators (CSRRs) and ... -
Compensation of nonlocal effects induced by the extinction ratio of pump pulses in Brillouin optical time-domain analysis sensors
We demonstrate a technique to compensate the nonlocal effects that appear in Brillouin optical time-domain analysis sensors when pump pulses with limited extinction ratio are deployed. These recently discovered nonlocal ... -
Compensation of phase noise impairments in distributed acoustic sensors based on optical pulse compression time-domain reflectometry
We introduce a method to compensate for the deleterious effects of the phase noise of the laser source on long-range distributed acoustic sensors (DAS) that implement optical pulse compression (OPC). Pulse compression can ... -
A comprehensive review: materials for the fabrication of optical fiber refractometers based on lossy mode resonance
Lossy mode resonance based sensors have been extensively studied in recent years. The versatility of the lossy mode resonance phenomenon has led to the development of sensors based on different configurations that make use ... -
A comprehensive survey of 'metamaterial transmission-line based antennas: design, challenges, and applications'
In this review paper, a comprehensive study on the concept, theory, and applications of composite right/left-handed transmission lines (CRLH-TLs) by considering their use in antenna system designs have been provided. It ...