Listar IC - Contribuciones a congresos científicos por título
Mostrando ítems 68-87 de 288
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Customized spectral filters using cladding-modulated Bragg gratings in silicon waveguides.
Pereira-Martín, Daniel; Ortega-Moñux, Alejandro
; Luque-González, José Manuel; Hadij-ElHouati, Abdelfettah; Sánchez-Postigo, Alejandro; Molina-Fernandez, Iñigo; Cheben, Pavel; Schmid, Jens H.; Shurui, Wang; Ye, Winnie N.; Ctyroky, Jiri; Wanguemert-Perez, Juan Gonzalo[et al.] (European Optical Society Annual Meeting (EOSAM) 2021., 2021-09-13)
Waveguide Bragg gratings are expected to play an important role in diverse applications of photonic integrated circuits. Here, we present our latest progress in implementing Bragg filters with a customized spectral response ... -
A data-driven user steering algorithm for optimizing user experience in multi-tier LTE networks
Gijón, Carolina; Marí-Altozano, María Luisa; Toril-Genoves, Matias; Luna-Ramírez, Salvador (2019-01-31)
Multi-tier cellular networks are a cost-effective solution for capacity enhancement in urban scenarios. In these networks, effective handover schemes are required to assign users to the most adequate layer. In this paper, ... -
DC-18 GHz MMIC tapered distributed power amplifier
Ng Molina, Francisco Yak; Perez-Parras, Sergio Luis; Camacho-Peñalosa, Carlos; Martin-Guerrero, Teresa Maria (2014-07-22)
A DC-18 GHz MMIC tapered power distributed amplifier has been designed and simulated in GaAs technology. The amplifier has been designed according to the theory for power and efficiency maximization based on tapered drain ... -
Desafío tecnológico: herramienta para trabajar y evaluar las competencias básicas y generales en los estudios de grado de la E.T.S.I. de Telecomunicación
Barbancho-Perez, Ana Maria; Barbancho-Perez, Isabel; Tardon-Garcia, Lorenzo Jose; Peinado-Dominguez, Alberto; Munilla-Fajardo, Jorge; Ortiz-Garcia, Andres; Mata-Contreras, Francisco Javier[et al.] (2018-09-20)
This work presents the evolution of the five editions of the educational activity named “Technological Challenge” specially focused on the students at “Escuela Técnica Superior de Ingeniería de Telecomunicación” (ETSIT), ... -
Desarrollo de actividades prácticas dirigidas a la adquisición de competencias profesionales
Reyes-Iglesias, Pedro Jose; Garrido-Balsells, José María (2018-09-14)
Most companies require engineering graduates with transversal skills, in addition to technical competences, for their professional practice. Therefore, regional, national and European engineering accreditation agencies pay ... -
Desarrollo de antena espiral con alimentación lateral realizada mediante fabricación aditiva
This contribution presents an step-by-step design and manufacturing of a spiral antenna with lateral feeding mainly for automotive applications. The spiral antenna is intended to work in Ultra-Wide Band (UWB), a new ... -
Desarrollo de un simulador de nivel de enlace del estándard AFDX
Villegas, Javier; Fortes-Rodriguez, Sergio; Baena-González, Jose Carlos; Baena-Martinez, Eduardo; Ortiz, Rafael; Colomer, Benjamín; Barco-Moreno, Raquel[et al.] (2020-10-02)
This paper presents a link level implementation of a system-level Avionics Full-Duplex Switched (AFDX) network simulator. The simulator features two main elements, the End-System and the AFDX switch. It is proposed as a ... -
Desarrollo e integración de un sensor modular y flexible en la banda de ondas milimétricas para aplicaciones de automoción
Martín-Bayona, Francisco-José; Villalba-Calvillo, Guillermo; Perez-Escribano, Mario; Oliva, Jaime; Rojas, Antonio; Cobos, Sergio; Márquez-Segura, Enrique[et al.] (2020-09-21)
This paper presents the development of a full prototype of a millimetre wave sensor for automotive radar in the 77-81GHz frequency band. The interest in millimetre wave sensors has grown significatively in the last ten ... -
Design and characterization of a pure phase modulator based on TNLC
Pérez Aguilar, Lorena; Puerta-Notario, Antonio; Garrido-Balsells, José María; del Castillo Vázquez, Miguel (2019-10-22)
In this work, we present a complete process to obtain a pure phase modulator based on a twisted nematic liquid crystal display (TNLCD). We first describe a simple technique for measuring the physical parameters of each ... -
Design and fabrication of a Fabry-Pérot cavity antenna for the Ku-band
Mateos-Ruíz, Pablo; Hernández-Escobar, Alberto; Abdo-Sanchez, Maria Elena; Camacho-Peñalosa, Carlos (2020-09-18)
A design of a directive antenna based on a Fabry-Pérot cavity is described, using a single metallic partially reflecting surface (PRS) in front of a coaxial-fed patch antenna. The main features of this type of antennas are ... -
Design Aspects of a Broadband Beam-Reconfigurable Leaky-Wave Antenna
Abdo-Sanchez, Maria Elena; Palacios, David; Frías, C.; Ng-Molina, Francisco Yak; Martin-Guerrero, Teresa Maria; Camacho-Peñalosa, Carlos[et al.] (IEEE Antennas and Propagation Society, 2016)
Design aspects of a novel beam-reconfigurable pla-nar series-fed array are addressed to achieve beam steering with frequency tunability over a relatively broad bandwidth. The design is possible thanks to the use of the ... -
Design of arbitrary optical filters in silicon-on-insulator using evanescently-coupled Bragg gratings
Pereira-Martín, Daniel; Ortega-Moñux, Alejandro; Molina-Fernandez, Iñigo; Luque-González, José Manuel; Cheben, Pavel; Schmid, Jens H.; Ye, Winnie N.; Ctyroky, Jiri; Wanguemert-Perez, Juan Gonzalo[et al.] (2019-07-10)
Spectral filters are experiencing an increasing demand in several applications of the silicon- on-insulator (SOI) platform. Many works have demonstrated that arbitrary frequency responses can be synthesized by apodizing ... -
Design of optical metamaterial waveguide structures
Ortega-Moñux, Alejandro (2017-06-01)
Subwavelength gratings (SWGs) are periodic structures with a pitch (Λ) smaller than the wavelength of the propagating wave (λ), so that diffraction effects are suppressed. These structures thus behave as artificial ... -
Design of subwavelength grating metamaterial waveguides for communications and sensing applications
Ortega-Moñux, Alejandro; Luque-González, José Manuel; Pereira Martín, Daniel; Sánchez-Postigo, Alejandro; Hadij ElHouati, Abdel; Leuermann, Jonas; De-Oliva-Rubio, Jose; Halir, Robert; Wanguemert-Perez, Juan Gonzalo; Molina-Fernandez, Iñigo; Ctyroky, Jiri; Schmid, Jens H.; Cheben, Pavel[et al.] (2019-07-04)
In this work we will cover some of our recent advances in the design of state-of-the-art silicon photonic devices based on all-dielectric subwavelength grating (SWG) metamaterials. Specifically, we will focus on the design ... -
Designing anisotropy with waveguide subwavelength structures
Herrero-Bermello, Alaine; Velasco, Aitor V.; Schmid, Jens; Cheben, Pavel; Halir, Robert; Luque-González, José Manuel; Ortega-Moñux, Alejandro; Wanguemert-Perez, Juan Gonzalo; Molina-Fernandez, Iñigo[et al.] (2018-07-12)
Silicon sub-wavelength structures have become a versatile design tool for practical, high-performance integrated optical devices, ranging from highly efficient grating couplers to ultra-broadband beam-splitters. Recently, ... -
Designing polarization management devices by tilting subwavelength grating structures
Luque-González, José Manuel; Herrero-Bermello, Alaine; Ortega-Moñux, Alejandro; Molina-Fernandez, Iñigo; Velasco, Aitor V.; Cheben, Pavel; Schmid, Jens H.; Wang, Shurui; Halir, Robert[et al.] (2019-05-03)
Subwavelength gratings (SWG) are periodic structures which behave as controllable homogeneous metamaterials. SWGs are extremely interesting when they are used in platforms with a limited choice of material refractive indices, ... -
Development and RF-Performance of AlGaN/GaN and InAlN/GaN HEMTs on Large-Diameter High-Resistivity Silicon Substrates
Moser, M.; Pradhan, M.; Alomari, M.; Schoch, B.; Sharma, K.; Kallfass, I.; García-Luque, A.; Martin-Guerrero, Teresa Maria; Burghartz, J. N.[et al.] (2022)
A CMOS-compatible industrial processing and RF analysis of 150 mm GaN-on-HR-Si substrates with AlGaN and InAlN barrier is presented. Process development along with transfer to large-wafer scale is shown and some HEMT ... -
Diffractive sidewall grating coupler: towards 2D free-space optics on chip.
Hadij-ElHouati, Abdelfettah; Cheben, Pavel; Ortega-Moñux, Alejandro; Wanguemert-Perez, Juan Gonzalo; Halir, Robert; Schmid, J.H.; Molina-Fernandez, Iñigo[et al.] (2019-05-02)
Silicon photonics has been the subject of intense research efforts. In order to implement complex integrated silicon photonic devices and systems, a wide range of robust building blocks is needed. Waveguide couplers are ... -
Discriminador de frecuencia basado en resonadores “dual-mode” sintonizables
In this paper a novel varactor-tuned frequency discriminator that makes use of two tunable dual-mode microstrip resonators is demonstrated. In this circuit, the two tuned modes of the resonators are used independently to ... -
Diseño de antena óptica integrada de haz estrecho en tecnología silicon-on-insulator
Ortega-Moñux, Alejandro; Pereira-Martín, Daniel; Hadij-ElHouati, Abdelfettah; Ye, Winnie N.; Melati, Daniele; Xiu, Dan-Xia; Janz, Siegfried; Sánchez-Postigo, Alejandro; Wanguemert-Perez, Juan Gonzalo; Halir, Robert; Molina-Fernandez, Iñigo; Schmid, Jens H.; Cheben, Pavel; Ginel-Moreno, Pablo[et al.] (2021-07)
Las antenas ópticas acopladas en fase son un elemento clave en sistemas de Light Detection and Ranging (LIDAR) integrados, en los que se necesita emitir un haz óptico con ancho angular estrecho en un amplio número de ...