Ara es mostren els items 1-20 de 74

    • Advanced Methods for the Measurement of Chromatic Dispersion at Optical Frequencies 

      Sarabia Díaz, Eugenia Teresa (Universitat Politècnica de Catalunya, 2015-02-16)
      Projecte Final de Màster Oficial
      Accés obert
      Currently, most networks are hybrid, combining fiber with copper wire, but the goal is for them to be completely of fiber. Like any other transmission medium, using fiber has some drawbacks, being chromatic dispersion one ...
    • Advanced techniques for optical access networks based on OFDM 

      Arcas Serrate, Blanca (Universitat Politècnica de Catalunya, 2012-10-05)
      Projecte Final de Màster Oficial
      Accés obert
      This Master Thesis aims to review and study the different alternatives for application of OFDM technologies to optical fibre networks and assess their potential as the basis of the next generation PON. New proposals based ...
    • Analysis, design and development of a photonics-based radar 

      Mas Zapater, Lidia (Universitat Politècnica de Catalunya, 2022-07-05)
      Treball Final de Grau
      Accés obert
      The purpose of this project is to analyze, design and develop a type of Microware Photonic Radar. Microwave photonics provides a solution to overcoming the limitations of electrical devices in conventional radar systems ...
    • Análisis de sistemas de predistorsión para moduladores electroópticos Mach-Zehnder usando el simulador Virtual Photonics Inc. (VPI) 

      Jordà Carmona, Albert (Universitat Politècnica de Catalunya, 2010-02-25)
      Treball Final de Grau
      Accés obert
    • Antenna beam steering and beam forming at mm Wave and THz frequencies 

      Vega Piña, Sara (Universitat Politècnica de Catalunya, 2021-01-20)
      Projecte Final de Màster Oficial
      Accés obert
      The evolution of wireless communications and the emergence of novel applications will spur the demand of higher data rates, requiring, on one hand, unallocated spectrum in the millimeter Wave (mm-Wave) and Terahertz (THz) ...
    • Bias field line model for photocurrent in Photoconductive Antennas 

      Arribalzaga Jové, Carlos; Jiménez Benetó, Donato (Universitat Politècnica de Catalunya, 2023)
      Treball d'assignatura
      Accés obert
      Photoconductive Antennas (PCAs) are used for the generation of THz radiation using lasers impinging in a gap between electrodes to induce carrier current and subsequently radiated field. The computation of this photocurrent ...
    • Characterization of errors and noises in MEMS inertial sensors using Allan variance method 

      Barreda Pupo, Leslie (Universitat Politècnica de Catalunya, 2016)
      Projecte Final de Màster Oficial
      Accés obert
      This thesis work has addressed the problems of characterizing and identifying the noises inherent to inertial sensors as gyros and accelerometers, which are embedded in inertial navigation systems, with the purpose of ...
    • Compact optoantennas for millimeter-wave wireless applications 

      Higón Sorribes, José Miguel (Universitat Politècnica de Catalunya, 2020-11-27)
      Projecte Final de Màster Oficial
      Accés obert
      Nowadays there are a lot of applications that request high bandwidth (due to the data that they transport) and high speed of transmission , for example, 5G technology or Video-based applications. The use of photonic systems ...
    • Compact tunable and reconfigurable microwave photonic filter for satellite payloads 

      Yoosefi, Oraman (Universitat Politècnica de Catalunya, 2015-07-08)
      Projecte Final de Màster Oficial
      Accés obert
      We present a novel approach for the photonic filtering of microwave signals based on a direct- synthesis technique with optical phase modulation of the microwave signal and employing two tunable laser sources and a fixed ...
    • Cost-effective optical transmission systems based on orthogonal frequency division multiplexing 

      Garcia Villar, Edurne (Universitat Politècnica de Catalunya, 2011-06-30)
      Projecte Final de Màster Oficial
      Accés obert
      Orthogonal frequency division multiplexing (OFDM)is becoming increasingly popular in optical fiber applications because as data rates increase, the computational requirements involved in electronic dispersion compensation ...
    • Data transmission through Radio over Fiber Links 

      Zaragosin Bautista, Edison Gabriel (Universitat Politècnica de Catalunya, 2023-02-02)
      Treball Final de Grau
      Accés obert
      This document explains the principle of operation and implementation, via software, of a RoF system and how to assemble the radio frequency part through laboratory equipment.
    • Design and characterization of bidirectional fiber-wireless nodes 

      Ramos Campodarve, Nuria (Universitat Politècnica de Catalunya, 2020-07)
      Treball Final de Grau
      Accés obert
      This project consists on creating a communication infrastructure based on radio frequency with an optical architecture. It is oriented in the 5G feature of mobile telephony. This idea is designed for a signal being processed ...
    • Design and development of a portable cytometer based on image sensor technology 

      Pérez Rosas, Juan Miguel (Universitat Politècnica de Catalunya, 2014-09-03)
      Projecte Final de Màster Oficial
      Accés obert
      [ANGLÈS] This Thesis focuses on the development of the opto-mechanical design and software interface of an image cytometer capable of analyzing particulate in a small volume sample. The device consists of an incoherent ...
    • Design and optimization of Photonic Systems for Microwave Applications 

      Nuño Gómez, Daniel-Juan (Universitat Politècnica de Catalunya, 2017-09-07)
      Projecte Final de Màster Oficial
      Accés obert
      Realitzat a/amb:   Institut de Ciències Fotòniques (ICFO) / Universitat de Barcelona / Universitat Autònoma de Barcelona
      Extensively researched in the last years, the Microwave Photonics Technology field has a number of potential advantages including extremely wide bandwidth, very low frequency constant losses, light weight, immunity to EMI ...
    • Design and optimization of radio-over-fiber links 

      Aibar, Arturo (Universitat Politècnica de Catalunya, 2021-06)
      Treball Final de Grau
      Accés obert
      En los últimos el uso de enlaces ópticos han sido altamente incrementado debido a las ventajas que supone este sobre los enlaces eléctricos, junto con esto, también han aumentado los programas dedicados a la simulación de ...
    • Design and testing of microwave circuits for optimized radio over fiber data transmission 

      Ucar, Yilmaz (Universitat Politècnica de Catalunya, 2021-02)
      Projecte Final de Màster Oficial
      Accés obert
      Inevitable increase in number of wireless communication users led to search for solutions to provide higher bandwidth requirement. Most famous candidate is Radio-over-Fiber systems to fulfil bandwidth necessity even though ...
    • Design rules and optimization of electro-optic modulators based on coplanar waveguides 

      Ibarra Fusté, José Antonio (Universitat Politècnica de Catalunya, 2014-02-03)
      Tesi
      Accés obert
      Electro-optical traveling wave modulators (EO-TWM) are basic building blocks of the optical communications industry which is leading a revolution in the way we communicate, work and live. As a result, the demand for ...
    • Design, fabrication and characterization of dual-band antennas for bidirectional wireless link applications 

      Fusta Bover, Enric (Universitat Politècnica de Catalunya, 2023-07-06)
      Treball Final de Grau
      Accés obert
      This final thesis consists in designing and testing a Radio-Over-Fiber (RoF) system, which is meant to be potentially a part of a fronthaul system. Its advantages are that due to the use of the dual antenna, it will have ...
    • Diseño avanzado de instalaciones comunes de telecomunicación 

      Hernández Martínez, Julián (Universitat Politècnica de Catalunya, 2006-02)
      Projecte/Treball Final de Carrera
      Accés obert
    • Diseño y puesta en marcha de un banco de medidas de caracterización de diodos láser semiconductores 

      Tous Requillard, Eduard (Universitat Politècnica de Catalunya, 2010-09-23)
      Treball Final de Grau
      Accés obert