Listar Comunicaciones y ponencias de congresos DIEC - IEKS Biltzarretako komunikazioak eta txostenak por título
Mostrando ítems 126-145 de 180
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Narrowband and spectrally robust thermal emission from metallic thin films on top of epsilon-near-zero substrates
Navajas Hernández, David
; Pérez Escudero, José Manuel 
; Liberal Olleta, Íñigo (IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena 
The absorption and emission of infrared radiation by ultra-thin metallic films is a key element in several thermal engineering applications such as heat and energy management, and thermal camouflage. However, ultra-thin ... -
A new ABS conductive material to develop fully 3D-printed patch antennas
Jiménez Peña, Javier; Irigoyen, Joseba; Aresti Bartolomé, Maite; Ederra Urzainqui, Íñigo ; Bravo Larrea, Javier ; Iriarte Galarregui, Juan Carlos (IEEE, 2023)
Contribución a congreso / Biltzarrerako ekarpena
Additive manufacturing technology is rapidly overcoming some of its initial limitations and, thus, creating a very useful engineering option for prototyping complex geometries for a wide range of electronic devices. Based ... -
New approach to suppress mutual coupling between longitudinal-slotted arrays based on SIW antenna loaded with metal-fences working on VHF/UHF frequency-bands: study, investigation, and principle
Alibakhshikenari, Mohammad; Virdee, Bal S.; Khalily, Mohsen; See, Chan H.; Abd-Alhameed, Raed; Falcone Lanas, Francisco Javier ; Limiti, Ernesto (IEEE, 2019)
Contribución a congreso / Biltzarrerako ekarpena
In this work it is demonstrated that substrate integrated waveguide longitudinal slotted array antenna (SIWLSAA) which is loaded with metal fences exhibits high-isolation across VHF/UHF bands. A reference SIWLSAA used for ... -
New design alternatives for a hybrid photovoltaic and doubly-fed induction wind plant to augment grid penetration of renewable energy
Goñi, Naiara; Sacristán Sillero, Javier; Berrueta Irigoyen, Alberto ; Rodríguez Rabadan, José Luis; Ursúa Rubio, Alfredo ; Sanchis Gúrpide, Pablo (IEEE, 2021)
Contribución a congreso / Biltzarrerako ekarpena
Reducing carbon emissions is essential to stop climate change. The grid-share of renewable generation plants is increasing, being wind and photovoltaic plants the most common ones, whereas conventional plants are the ... -
New hexagonal CORPS-BFN for multibeam antenna applications
Biurrun Quel, Carlos ; Montesano, Antonio; Ederra Urzainqui, Íñigo ; Iriarte Galarregui, Juan Carlos ; Río Bocio, Carlos del (IEEE, 2020)
Contribución a congreso / Biltzarrerako ekarpena
This work presents a new topology of a Coherently Radiating Periodic Structure - Beam Forming Network (CORPS-BFN) and its application for multibeam systems. A unit cell, consisting of a transition from a coaxial input to ... -
A new study to suppress mutual-coupling between waveguide slot array antennas based on metasurface bulkhead for MIMO systems
Alibakhshikenari, Mohammad; Virdee, Bal S.; Khalily, Mohsen; See, Chan H.; Abd-Alhameed, Raed; Falcone Lanas, Francisco Javier ; Limiti, Ernesto (IEEE, 2018)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, a new method is proposed to reduce mutual coupling between waveguide slot array (WSA) antennas based on metasurface technology. This is achieved by placing a metasurface bulkhead between the two WSA antennas. ... -
A new waveguide slot array antenna with high isolation and high antenna bandwidth operation on Ku- and K- Bands for radar and MIMO systems
Alibakhshikenari, Mohammad; Virdee, Bal S.; See, Chan H.; Abd-Alhameed, Raed; Limiti, Ernesto; Falcone Lanas, Francisco Javier (IEEE, 2018)
Contribución a congreso / Biltzarrerako ekarpena
In this paper a novel technique is proposed to reduce the mutual coupling between the radiating elements of a waveguide slot array antenna. This is achieved by inserting slots between the waveguide oval shaped slots. The ... -
Noise in coherently radiating periodic structures beam forming networks
Biurrun Quel, Carlos ; Río Bocio, Carlos del (IEEE, 2022)
Contribución a congreso / Biltzarrerako ekarpena
Following the noise wave theory, beam forming networks based on Coherently Radiating Periodic Structures (CORPS-BFN) are analysed and proven to be capable of enhancing the Signal to Noise Ratio of the system by analogically ... -
A novel 0.3-0.31 THz GaAs-based transceiver with on-chip slotted metamaterial antenna based on SIW technology
Alibakhshikenari, Mohammad; Virdee, Bal S.; See, Chan H.; Abd-Alhameed, Raed; Falcone Lanas, Francisco Javier ; Limiti, Ernesto (IEEE, 2020)
Contribución a congreso / Biltzarrerako ekarpena
This paper presents a novel on-chip antenna with fully integrated 0.3-0.31 THz transceiver is implemented on 0.5μm GaAs substrate, and comprises a voltage-controlled oscillator (VCO), a buffer amplifier, a modulator stage, ... -
A novel ku-band circularly-polarized horn antenna based on a ridged wall
Marzo Oyarbide, Andoni; Teberio Berdún, Fernando ; Teniente Vallinas, Jorge (IEEE, 2023)
Contribución a congreso / Biltzarrerako ekarpena
In this paper, a novel wideband (31.5 % bandwidth) circularly-polarized antenna based on a ridged wall is presented. A pair of ridges on the inner wall of the horn serves as an inbuilt polarizer, which can generate left-hand ... -
Novel three-phase topology for cascaded multilevel medium-voltage conversion systems in large-scale PV plants
Lumbreras Magallón, David ; Barrios Rípodas, Ernesto ; Balda Belzunegui, Julián; González Senosiain, Roberto ; Sanchis Gúrpide, Pablo (IEEE, 2020)
Contribución a congreso / Biltzarrerako ekarpena
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 ... -
On the limits of the capacitor-voltage active damping for grid-connected power converters with LCL filter
Samanes Pascual, Javier ; Gubía Villabona, Eugenio (IEEE, 2018)
Contribución a congreso / Biltzarrerako ekarpena
Active damping strategies are widely extended to avoid stability issues at the LCL filter resonant poles in grid-connected voltage source converters. The capacitor voltage derivative active damping effectively damps the ... -
On the on-site measurement of the degradation rate of crystalline silicon PV modules at plant level
Pascual Miqueleiz, Julio María ; Berrueta Irigoyen, Alberto ; Marcos Álvarez, Javier ; García Solano, Miguel ; Marroyo Palomo, Luis (IEEE, 2018)
Contribución a congreso / Biltzarrerako ekarpena
This paper proposes a method for measuring the degradation rate of crystalline silicon PV modules at plant level in two different ways as a form of verification. As actual levels of degradation rate have been observed to ... -
On the optimal current followers for wide-swing current-efficient amplifiers
López Martín, Antonio ; Garde Luque, María Pilar ; Carvajal, Ramón G.; Ramírez-Angulo, Jaime (IEEE, 2018)
Contribución a congreso / Biltzarrerako ekarpena
The design of various current followers for the implementation of OTAs with high slew rate and current efficiency is addressed. Two basic current follower topologies are compared, and modifications of both followers to ... -
On the requirements of the power converter for second-life lithium-ion batteries
Berrueta Irigoyen, Alberto ; San Martín Biurrun, Idoia ; Pascual Miqueleiz, Julio María ; Sanchis Gúrpide, Pablo ; Ursúa Rubio, Alfredo (IEEE, 2019)
Contribución a congreso / Biltzarrerako ekarpena
The use of lithium-ion batteries is increasing year after year, especially in the automotive sector. Given the high requirements of electric vehicles, their energy storage systems are discarded when they still have around ... -
On the technical reliability of lithium-ion batteries in a zero emission polar expedition
Soto Cabria, Adrián ; Berrueta Irigoyen, Alberto ; Sanchis Gúrpide, Pablo ; Ursúa Rubio, Alfredo ; Oficialdegui, Ignacio (IEEE, 2020)
Contribución a congreso / Biltzarrerako ekarpena
This contribution presents a technical analysis of the Lithium-ion batteries (LIBs) used in the WindSled project. In this project, an expedition has been carried out by means of a 0-emission vehicle that have covered more ... -
One-year analysis of road condition using FBG arrays
Corera Orzanco, Íñigo ; Pradas Martínez, Javier ; Leandro González, Daniel ; Bravo Acha, Mikel ; López-Amo Sáinz, Manuel (SPIE, 2023)
Contribución a congreso / Biltzarrerako ekarpena
In this work, it is presented an analysis of FBG arrays installed in a public road. The arrays were installed in a newly paved urban road and were monitored for more than one year. The study evidences the permanent deformation ... -
Onset of irreversible reactions in overcharging lithium-ion cells: an experimental and modeling approach
Irujo Izcue, Elisa; Berrueta Irigoyen, Alberto ; Lalinde Sainz, Iñaki; Arza, Joseba; Sanchis Gúrpide, Pablo ; Ursúa Rubio, Alfredo (IEEE, 2023)
Contribución a congreso / Biltzarrerako ekarpena
Lithium-ion batteries are energy storage systems used in an increasing number of applications. Due to their flammable materials, their use entails risks of fire and explosion. The study of the abuse operation of these ... -
Optical biosensors: a quick overview
Imas González, José Javier ; Ruiz Zamarreño, Carlos ; Matías Maestro, Ignacio (2021)
Contribución a congreso / Biltzarrerako ekarpena
This work aims to provide a brief overview of the latest trends in the domain of optical biosensors. -
Optical fiber sensors for asphalt structures monitoring
Bravo Acha, Mikel ; Rota Rodrigo, Sergio ; Leandro González, Daniel ; Loayssa Lara, Alayn; Urricelqui Polvorinos, Javier ; Bravo Acha, A.; Bravo Navas, M.; Mitxelena, J. R.; Martínez Mazo, J. J.; López-Amo Sáinz, Manuel (Optica Publishing Group, 2016)
Contribución a congreso / Biltzarrerako ekarpena
A novel optical fiber installation method was explored for asphalt monitoring. Glassfiber polymer encapsulated SMF was installed in the intermediate and surface layers in order to study the strain sensitivity with a ...
