Browsing Comunicaciones y ponencias de congresos DIEC - IEKS Biltzarretako komunikazioak eta txostenak by Issue Date
Now showing items 1-20 of 88
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Compact bull's-eye antenna in ridge gap waveguide with circular polarization at 60 GHz
(IEEE, 2021) Contribución a congreso / Biltzarrerako ekarpenaIn this work, a Bull's-Eye (BE) antenna with circular polarization (CP) based on ridge gap waveguide (RGW) technology, working in the millimeter-wave band (60 GHz) is numerically and experimentally demonstrated. The structure ... -
Monitoring of electric buses within an urban smart city environment
A practical experience on monitoring the data generated by electric buses is presented, focusing on energy consumption, charge and state of the batteries. The work is carried out in the framework of a global smart city ... -
Design of a slotted Substrate Integrated waveguide antenna using a metasurface
(IEEE, 2021) Contribución a congreso / Biltzarrerako ekarpenaIn this paper, the use of a metasurface to improve the radiation properties of a Substrate Integrated Waveguide based slotted antenna is proposed. The design process of a metasurface covered 8 element slot antenna array ... -
An IoT framework for SDN based city mobility
(Springer, 2021) Contribución a congreso / Biltzarrerako ekarpenaThe Internet of Things (IoT) is becoming more widespread, with global application in a wide range of commercial sectors, utilizing a variety of technologies for customized use in specific environments. The combinationof ... -
THz tripod metasurfaces for sensing applications: from the basic, to more elaborated designs
(IEEE, 2021) Contribución a congreso / Biltzarrerako ekarpenaIn this work, we propose, design, and evaluate three types of : three types of metasurfaces using tripod-shaped unit cells when working as thin-film sensing devices. The three meta-atoms of the proposed metasensors area ... -
Integration of second-life battery packs for self-consumption applications: analysis of a real experience
This contribution presents a methodology for the integration of Li-ion batteries discarded from electric vehicle into a collective self-consumption installation, showing the technical feasibility of such battery second ... -
Distributed opportunistic wireless mapping system towards smart city service provision
The knowledge of wireless signal distribution within an urban scenario can provide useful information to users as well as to enhance connectivity and device operation or to perform municipal logistics based on crowd density ... -
Compact antennas in ridge gap waveguide with circular polarization
(IEEE, 2020) Contribución a congreso / Biltzarrerako ekarpenaIn this paper, two compact antennas in Ridge Gap Waveguide (RGW) technology, working at 60 GHz, with a high-purity circular polarization (CP) within a broad bandwidth are manufactured and measured. The antennas are fed ... -
Synthetic wind speed generation for the simulation of realistic diurnal cycles
Synthetic wind-speed generators can provide a detailed characterisation of the wind variability at different time scales. A keen interest in the availability of synthetic wind speeds has recently risen in wind power modelling ... -
A gap waveguide fed circular polarization antennas in the millimeter wave range
In this work, a novel circular polarization (CP) antennas in ridge gap waveguide (RGW) working in the V-band of the millimeter-wave spectrum is presented. CP is generated in a simple and effective way by means of two ... -
Gaze estimation problem tackled through synthetic images
(Association for Computing Machinery (ACM), 2020) Contribución a congreso / Biltzarrerako ekarpenaIn this paper, we evaluate a synthetic framework to be used in the field of gaze estimation employing deep learning techniques. The lack of sufficient annotated data could be overcome by the utilization of a synthetic ... -
Analytical modeling of high-frequency winding loss in round-wire toroidal inductors
Toroidal inductors are present in many different industrial applications, thus, still receive researchers' attention. AC winding loss in these inductors have become a major issue in the design process, since switching ... -
Active control for medium-frequency transformers flux-balancing in a novel three-phase topology for cascaded conversion structures
Efficiency and power density are important parameters in the design of power electronics converters. In many applications, low-frequency transformers are being substituted for medium-frequency and high-frequency transformers ... -
Compact harmonic rejection filter for C-band high-power satellite applications
A compact high-power low-pass filter for C-band broadband satellite applications is presented in this paper. The filter is composed of three different sections. A 9th-order compact high-power multi-ridge structure achieves ... -
Metal 3D printed D-Band waveguide to surface wave transition
The coupling efficiency between free space waves and surface waves is low, narrowband, or both. Highly efficient broadband (better than 20% fractional bandwidth) coupling from waveguide modes can be achieved through ... -
Novel three-phase topology for cascaded multilevel medium-voltage conversion systems in large-scale PV plants
Solar photovoltaic renewable energy systems are expanding in the power sector thanks to its increasingly competitive prices. Traditionally, large-scale PV plants have reduced their cost by increasing the power ratings of ... -
Super-gain-boosted miller op-amp based on nested regulated cascode techniques with FoMAOLDC =24,614kV/V.MHz.pF/µWatt
A simple technique to greatly enhance the DC open-loop gain of a Miller op-amp is introduced here. It is based on the utilization of nested regulated cascode amplifiers. It uses conventional Miller compensation and does ... -
Modeling the inherent damping of high-power inverters
In order to decide whether passive or active damping is required in a three-phase inverter, a previous step is to assess the intrinsic damping of the system. However, few works focus on modeling this damping for DC/AC ... -
Lossy mode resonance enabling ultra-low detection limit for fibre-optic biosensors (INVITED)
The combination of optical fibre-based biosensors with nanotechnologies is providing the opportunity for the development of in situ, portable, lightweight, versatile and high-sensitivity optical sensing platforms. We report ... -
CMOS low-voltage indirect current feedback instrumentation amplifiers with improved performance
Indirect current feedback (ICF) is a very common operation principle used in the design of CMOS instrumentation amplifiers (IA). The input and output transconductors required in an ICF IA usually consist on resistive-degenerated ...