Listar Artículos de revista DIEC - IEKS Aldizkari artikuluak por título
Mostrando ítems 419-438 de 483
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Spectral shadowing suppression technique in phase-OTDR sensing based on weak fiber Bragg grating array
Miguel Soto, Verónica de
; Jason, Johan; Kurtoglu, Deniz; López-Amo Sáinz, Manuel ; Wuilpart, Marc (Optical Society of America, 2019)
Artículo / Artikulua 
A postprocessing procedure is presented to suppress spectral shadowing in phase-OTDR sensing systems based on a weak fiber Bragg grating array. A complete theoretical analysis of the interfering signals has been carried ... -
Spectral width reduction in lossy mode resonance-based sensors by means of tapered optical fibre structures
Socorro Leránoz, Abián Bentor ; Del Villar, Ignacio ; Corres Sanz, Jesús María ; Arregui San Martín, Francisco Javier ; Matías Maestro, Ignacio (Elsevier, 2014)
Artículo / Artikulua
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Spectrally stable thermal emitters enabled by material-based high-impedance surfaces
Navajas Hernández, David; Pérez Escudero, José Manuel ; Liberal Olleta, Íñigo (Royal Society of Chemistry, 2023)
Artículo / Artikulua
Radiative thermal engineering with subwavelength metallic bodies is a key element for heat and energy management applications, communication and sensing. Here, we numerically and experimentally demonstrate metallic thermal ... -
State of health estimation of second-life lithium-ion batteries under real profile operation
Braco Sola, Elisa; San Martín Biurrun, Idoia ; Sanchis Gúrpide, Pablo ; Ursúa Rubio, Alfredo ; Stroe, Daniel-Ioan (Elsevier, 2022)
Artículo / Artikulua
The economic viability of second-life (SL) Li-ion batteries from electric vehicles (EVs) is still uncertain nowadays. Assessing the internal state of reused cells is key not only at the repurposing stage but also during ... -
Steering surface plasmons with a graded index dielectric medium
Beruete Díaz, Miguel ; Pacheco-Peña, Víctor (IOP Publishing, 2018)
Artículo / Artikulua
The arbitrary control of surface plasmon (SP) propagation has become an intense research topic for several decades. This is due to the fact that they can be used in a variety of fields such as optical trapping, nanoantennas ... -
Straightforward nano patterning on optical fiber for sensors development
Acha Morrás, Nerea de ; Elia Lorente, Victor ; Delgado Camón, Arantzazu ; Arregui San Martín, Francisco Javier ; Elosúa Aguado, César (Optical Society of America, 2020)
Artículo / Artikulua
A simple method to prepare a nano pattern along the surface of an optical fiber is applied in this Letter to develop a pH sensor. The template is made of a block copolymer that defines specific locations where gold nano ... -
Strain sensing based on resonant states in 2D dielectric photonic quasicrystals
Andueza Unanua, Ángel María ; Pérez Conde, Jesús ; Sevilla Moróder, Joaquín (Optica, 2021)
Artículo / Artikulua
This paper reports the numerical and experimental study of the strain sensing effect of bidimensional quasiperiodic structures made with dielectric cylinders. Structures of around 100 cylinders arranged following a Penrose ... -
Stripline multilayer devices based on Complementary Split Ring Resonators
Jarauta Ayensa, Eduardo; Falcone Lanas, Francisco Javier (MDPI, 2022)
Artículo / Artikulua
A new analytic design for multilayer stripline devices in planar circuit technology is presented. The Complementary Split Ring Resonator (CSRR) is used as a sub-wavelength resonant particle, which provides high-Q resonances ... -
Strong angular dependence of resonant states in 2D dielectric cylinder rings
Andueza Unanua, Ángel María ; Pérez Conde, Jesús ; Sevilla Moróder, Joaquín (AIP Publishing, 2018)
Artículo / Artikulua
We investigate collective resonators made of dielectric cylinders assembled as two-dimensional regular octagons and decagons. These structures exhibit collective resonance states that change their intensity with the incident ... -
Structural dispersion-based reduction of loss in epsilon-near-zero and surface plasmon polariton waves
Li, Yue; Liberal Olleta, Íñigo ; Engheta, Nader (American Association for the Advancement of Science, 2019)
Artículo / Artikulua
The field of plasmonics has substantially affected the study of light-matter interactions at the subwavelength scale. However, dissipation losses still remain an inevitable obstacle in the development of plasmonic-based ... -
Study on improvement of the performance parameters of a novel 0.41–0.47 THz on-chip antenna based on metasurface concept realized on 50 μm GaAs-layer
Alibakhshikenari, Mohammad; Virdee, Bal S.; See, Chan H.; Shukla, Panchamkumar; Falcone Lanas, Francisco Javier (Nature Research, 2020)
Artículo / Artikulua
A feasibility study is presented on the performance parameters of a novel on-chip antenna based on metasurface technology at terahertz band. The proposed metasurface on-chip antenna is constructed on an electrically thin ... -
Study on isolation improvement between closely-packed patch antenna arrays based on fractal metamaterial electromagnetic bandgap structures
Alibakhshikenari, Mohammad; Virdee, Bal S.; See, Chan H.; Abd-Alhameed, Raed; Ali, Abdul; Hussein Ali, Ammar; Falcone Lanas, Francisco Javier ; Limiti, Ernesto (Institution of Engineering and Technology, 2018)
Artículo / Artikulua
A decoupling metamaterial (MTM) configuration based on fractal electromagnetic-bandgap (EMBG) structure is shown to significantly enhance isolation between transmitting and receiving antenna elements in a closely-packed ... -
Study on on-chip antenna design based on metamaterial-inspired and substrate-integrated waveguide properties for millimetre-wave and THz integrated-circuit applications
Alibakhshikenari, Mohammad; Virdee, Bal S.; Althuwayb, Ayman Abdulhadi; Aïssa, Sonia; See, Chan H.; Abd-Alhameed, Raed; Falcone Lanas, Francisco Javier ; Limiti, Ernesto (Springer, 2021)
Artículo / Artikulua
This paper presents the results of a study on improving the performance parameters such as the impedance bandwidth, radiation gain and efficiency, as well as suppressing substrate loss of an innovative antenna for on-chip ... -
A study on the EDM drilling of reaction-bonded silicon carbide using different electrode materials
Torres Salcedo, Alexia ; Luis Pérez, Carmelo ; Puertas Arbizu, Ignacio ; Corres Sanz, Jesús María (Springer, 2023)
Artículo / Artikulua
Today, there is a growing demand for efficient hole manufacturing technology in many industries such as aeronautics, automotive and nuclear, among others. Thus, the present study deals with the machining of through holes ... -
Sub-synchronous resonance damping control strategy for DFIG wind turbines
Samanes Pascual, Javier ; Gubía Villabona, Eugenio ; López Taberna, Jesús ; Burgos, Rolando (IEEE, 2020)
Artículo / Artikulua
Doubly-fed induction generator (DFIG) wind turbines connected to capacitive series-compensated transmission lines are prone to exhibit oscillatory behavior. The phenomena is called sub-synchronous resonances (SSRs), as ... -
Subsampling OFDM-based ultrasonic data communication through metallic channels for monitoring of cargo containers
García Oya, José Ramón; Algueta-Miguel, Jose M. ; García Doblado, José; Muñoz Chavero, Fernando; Hidalgo Fort, Eduardo; Baena Lecuyer, Vicente; López Martín, Antonio (IEEE, 2019)
Artículo / Artikulua
An enhanced ultrasonic communication system based on piezoelectric transducers for monitoring of goods in cargo containers is presented. The proposed system consists of several sensors placed inside the container, whose ... -
Substrate-integrated photonic doping for near-zero-index devices
Zhou, Ziheng; Li, Yue; Li, Hao; Sun, Wangyu; Liberal Olleta, Íñigo ; Engheta, Nader (Nature Research, 2019)
Artículo / Artikulua
Near-zero-index (NZI) media, a medium with near zero permittivity and/or permeability, exhibits unique wave phenomena and exciting potential for multiple applications. However, previous proof-of-concept realizations of NZI ... -
Super class AB RFC OTA with adaptive local common-mode feedback
Garde Luque, María Pilar ; López Martín, Antonio ; Carvajal, Ramón G.; Ramírez-Angulo, Jaime (Institution of Engineering and Technology, 2018)
Artículo / Artikulua
A super class AB recycling folded cascode operational transconductance amplifier is presented. It employs local common-mode feedback using two matched tuneable active resistors, allowing to adapt the amplifier to different ... -
Super-gain-boosted AB-AB fully differential Miller op-amp with 156dB open-loop gain and 174MV/V MHZ pF/uW figure of merit in 130nm CMOS technology
Paul, Anindita; Ramírez-Angulo, Jaime; Díaz Sánchez, Alejandro; López Martín, Antonio ; González Carvajal, Ramón; Li, Frank X. (IEEE, 2021)
Artículo / Artikulua
A fully differential Miller op-amp with a composite input stage using resistive local common-mode feedback and regulated cascode transistors is presented here. High gain pseudo-differential auxiliary amplifiers are used ... -
Super-wide impedance bandwidth planar antenna for microwave and millimeter-wave applications
Alibakhshikenari, Mohammad; Virdee, Bal S.; See, Chan H.; Abd-Alhameed, Raed; Falcone Lanas, Francisco Javier ; Limiti, Ernesto (MDPI, 2019)
Artículo / Artikulua
A feasibility study of a novel configuration for a super-wide impedance planar antenna is presented based on a 2 × 2 microstrip patch antenna (MPA) using CST Microwave Studio. The antenna comprises a symmetrical arrangement ...
