Listar Dpto. Ingeniería Eléctrica, Electrónica y de Comunicación - Ingeniaritza Elektriko eta Elektronikoaren eta Komunikazio Ingeniaritzaren Saila [desde mayo 2018 / 2018ko maiatzetik] por título
Mostrando ítems 709-721 de 721
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A water content continuous monitoring of grapevine xylem tissue using a portable low-power cost-effective FMCW radar
This paper presents the real-time monitoring of a grapevine’s water content that flows up through the xylem tissue by means of a frequency-modulated continuous-wave (FMCW) radar. The application of an optimization process, ... -
Watt-level green random laser at 532 nm by SHG of Yb-doped fiber laser
We have developed a Watt-level random laser at 532 nm. The laser is based on a 1064 nm random distributed ytterbium-gain assisted fiber laser seed with a 0.35 nm line-width and 900 mW polarized output power. A study for ... -
Wavelength and intensity based lossy mode resonance breathing sensor
Copper oxide (CuO) allows the generation of lossy mode resonance (LMR) in a wide wavelength range of the optical spectrum, both in the visible and the near-infrared (NIR). For this, it is necessary to use a configuration ... -
Wavelength converter using a highly Er-doped optical fiber ring laser
This work presents an all-fiber wavelength converter based on a highly Er-doped fiber laser, which has been experimentally demonstrated. Frequencies from several kilohertz up to tens of gigahertz have been investigated. ... -
Wavelength-switchable L-band fiber laser assisted by random reflectors
A wavelength-switchable L-band erbium-doped fiber laser (EDFL) assisted by an artificially controlled backscattering (ACB) fiber reflector is here presented. This random reflector was inscribed by femtosecond (fs) laser ... -
Waveplates based on metasurfaces in the THz range
Los platos de onda basados en metasuperficies son componentes clave en electromagnetismo, ya que permiten un control total de la polarización de las ondas electromagnéticas con la ventaja de presentar estructuras más ... -
WDM and TDM interrogation by sequentially pulsing direct modulated DFBs
A new versatile and cost-effective interrogation system by pulsing direct modulated (DM) DFB laser diodes is proposed. 1 pm wavelength resolution and 600 m sensor spacing is demonstrated by sequentially pulsing a DM DFB. -
Winding resistance measurement in power inductors - understanding the impact of the winding mutual resistance
Inductors are cornerstone components in power electronics converters. Since winding loss is the dominant loss mechanism in these components, its accurate measurement is fundamental for the validation of the inductor's ... -
Wireless channel characterization and MIMO performance analysis in complex indoor scenarios at sub-6 GHz band
The continue evolution in wireless communication systems aims to provide adequate parameters in terms of higher transmission bit rates, capacity and increased spectral efficiency. All these deriving from the context ... -
Wireless characterization and assessment of an UWB-Based system in industrial environments
The advent of Indsutrial Internet of Things is one of the main drivers for the implementation of Industry 4.0 scenarios and applications, in which wireless communication systems play a key role in terms of flexibility, ... -
Women, Science and Technology Chair—Promoting women’s careers in stem fields
The Chair of Women, Science and Technology of the Universidad Pública de Navarra (UPNA) aims to increase the participation of women in the fields of science and technology. Scientific culture and dissemination are the main ... -
Zero-loss switching in DC-DC series resonant converters under discontinuous conduction mode
Many thriving applications where isolation is required, such as traction and EV fast charging, implement solid-state transformers (SST). Half-cycle discontinuous-conduction-mode series resonant converters (HC-DCM-SRC) are ... -
Zero-loss switching in LLC resonant converters under discontinuous conduction mode: analysis and design methodology
Many thriving applications where isolation is required, such as LED drivers, traction and EV fast charging, implement LLC resonant converters, particularly when voltage regulation is not required or an additional ...