Browsing by Subject "Dielectric devices"

Now showing items 1-18 of 18

    • A calibration method for fully polarimetric microwave radiometers 

      Lahtinen, J..; Gasiewski, A.J.; Klein, M.; Corbella Sanahuja, Ignasi (IEEE Press. Institute of Electrical and Electronics Engineers, 2003-03)
      Article
      Open Access
      A technique for absolute end-to-end calibration of a fully polarimetric microwave radiometer is presented. The technique is based on the tripolarimetric calibration technique of Gasiewski and Kunkee, but is extended to ...

    • An airborne GNSS-R field experiment over a vineyard for soil moisture estimation and monitoring 

      Alonso Arroyo, Alberto; Camps Carmona, Adriano José; Sanchez, Nilda; Pablos Hernández, Miriam; González Zamora, Ángel; Martinez Fernandez, Jose; Vall-Llossera Ferran, Mercedes Magdalena; Pascual, D. (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference lecture
      Restricted access - publisher's policy
      The Light Airborne Reflectometer for GNSS-R Observations (LARGO) is an airborne instrument designed for measuring the coherent reflectivity from different soils. In this work, an improved version of LARGO has been used in ...

    • Análisis comparativo de propiedades termo estructurales y eléctricas entre polietileno de alta densidad (HD-PE), y el HD-DE reforzado con neumáticos al final de su vida útil. Estudio de aplicación como dieléctrico 

      Marín Genescà, Marc; Mujal-Rosas, Ramon Maria; Garcia Amoros, Jordi; Massagués Vidal, Lluís; Pou Ibar, Josep Oriol; Colom Fajula, Xavier (2022-01-01)
      Article
      Open Access
      El propósito del presente trabajo pasa por analizar la permitividad y el factor de pérdidas tanto del polietile-no de alta densidad (HD-PE), como del compuesto de matriz polimérica (HD-PE)reforzado con neumáticos fuera de ...

    • Application properties analysis as a dielectric capacitor of end-of-life tire-reinforced HDPE 

      Marín Genescà, Marc; Garcia Amoros, Jordi; Mujal-Rosas, Ramon Maria; Massagués Vidal, Lluís; Colom Fajula, Xavier (Multidisciplinary Digital Publishing Institute (MDPI), 2020-11-12)
      Article
      Open Access
      The purpose of the present research is to obtain waste of polymeric composite as an insulator capacitive application. Rubber materials, once they end their useful life, may be difficult to reuse or recycle. At present, ...

    • Boson peak in transitionally ordered and orientationally disordered phases 

      Bernet Garcia, Marc (Universitat Politècnica de Catalunya, 2020-06)
      Bachelor thesis
      Open Access
      Covenantee:   Tsukuba Daigaku
      Los vidrios y cristales desordenados han sido objeto de debate debido a su comportamiento anormal en sus propiedades dieléctricas y termodinámicas. En el siguiente trabajo, se ha estudiado un conjunto de dos muestras que ...

    • Caracterización de interruptores MEMS mediante fuentes de corriente 

      López Truchero, Carlos (Universitat Politècnica de Catalunya, 2008-10-01)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      El presente proyecto caracteriza mediante fuentes de corriente interruptores microelectromecánicos (MEMS) con el objetivo de estudiar los fenómenos de carga que se producen sobre el material dieléctrico presente en estos ...

    • Design-guide for fluid coolers in power electronics 

      Pliego Prim, Gonzalo (Universitat Politècnica de Catalunya, 2018)
      Master thesis
      Open Access
      Covenantee:   Friedrich-Alexander-Universität Erlangen-Nürnberg
      This paper is orientated for the ones who are interested in solving the heat dissipation issue that occurs in the field of Power Electronics. In high voltage direct current (HVDC) transmissions the use of water as a heat ...

    • EWOD Micro-Liquid lens fabrication technology development 

      Moreno González, Marc (Universitat Politècnica de Catalunya, 2022-02-01)
      Bachelor thesis
      Restricted access - confidentiality agreement
      Study of the characteristics of the different layers of the EWOD lens and the manufacturing method for each one of them. In addition, the hydrophobic or hydrophilic behavior of a liquid is studied when it is deposited on ...

    • High dielectric ring resonators for designing passive filter 

      Moradi, Bahareh; García García, Joan (2019-12-30)
      Article
      Open Access
      In this paper, the utilization of high dielectric constant resonator as a passive element for design of filter in the range of Ku band is investigated. The design is based on a new kind of dielectric resonator fabricated ...

    • Improvement of highly-doped regions from laser processed dielectric films 

      Almirall Canudas, Xavier (Universitat Politècnica de Catalunya, 2017-05)
      Bachelor thesis
      Open Access
      This TFG is focused on the development of high quality n+ and p+ regions based on laser processed dielectric films. The involved films consist of a thin intrinsic amorphous silicon layer (a-Si:H(i)) capped with a doped ...

    • Microwave measurements of dielectric material to be used in the CERN Future Circular Collider study 

      Diez Comas, Albert (Universitat Politècnica de Catalunya, 2020-09-03)
      Bachelor thesis
      Open Access
      Covenantee:   Sincrotró ALBA / Institut de Ciència de Materials de Barcelona / Institut de Física d’Altes Energies / European Organization for Nuclear Research
      The main objective of this project is to design, fabricate and test a resonator capable of measuring the required properties of different dielectric samples in the microwave region for a temperature range of 20 – 100 K ...

    • Microwave measurements of material properties for CERNs Future Circular Collider 

      Abu Helalah, Ebrahim (Universitat Politècnica de Catalunya, 2021-06)
      Master thesis
      Restricted access - author's decision
      Covenantee:   Sincrotró ALBA

    • Passive devices in X-Band for space communications 

      Albajar Garduño, Marc (Universitat Politècnica de Catalunya, 2016-02-09)
      Bachelor thesis
      Restricted access - confidentiality agreement

    • RFID Antenna Design Process for Brain Surgical Prosthesis 

      Calvo Rojas, Christian (Universitat Politècnica de Catalunya, 2023-07-07)
      Master thesis
      Restricted access - confidentiality agreement
      This document details the design of a Passive UHF RFID Temperature Sensing Antenna Tag, integrated into biocompatible material, to incorporate within a brain surgical prosthesis. This wireless and non-invasive RFID device ...

    • Second order sigma-delta control of charge trapping for MOS capacitors 

      Bheesayagari, Chenna Reddy; Gorreta Mariné, Sergio; Pons Nin, Joan; Domínguez Pumar, Manuel (2017-09-01)
      Article
      Open Access
      This paper presents the circuit topology of a second order sigma-delta control of charge trapping for MOS capacitors. With this new topology it is possible to avoid the presence of plateaus that can be found in first-order ...

    • Sub-nanosecond tuning of microwave resonators fabricated on ruddlesden–popper dielectric thin films 

      Hagerstrom, A. M.; Lu, Xifeng; Dawley, Natalie M.; Mateu Mateu, Jordi (Wiley, 2018-08-01)
      Article
      Open Access
      Voltage-tunable dielectric materials are widely used for microwave-frequency signal processing. Among tunable dielectric thin films, (SrTiO3)nSrO Ruddlesden–Popper (RP) superlattices have exceptionally low loss at high ...

    • Surveying of pure and hybrid plasmonic structures based on graphene for Terahertz Antenna 

      Hosseininejad, Seyed Ehsan; Alarcón Cot, Eduardo José; Komjani, Nader; Abadal Cavallé, Sergi; Lemme, Max; Bolívar, Peter Haring; Cabellos Aparicio, Alberto (Association for Computing Machinery (ACM), 2016)
      Conference report
      Restricted access - publisher's policy
      Graphene is a unique material for the implementation of terahertz antennas due to extraordinary properties of the resulting devices, such as tunability and compactness. Existing graphene antennas are based on pure plasmonic ...

    • TiO2 and Al2O3 nanoparticles to build new devices 

      Ribas Forcano, Xavier (Universitat Politècnica de Catalunya, 2018-10)
      Bachelor thesis
      Open Access
      The project aims to study the behaviour of MIM nanostructures using as an insulating material nanoparticles of Al2O3 and TiO2. The work arises from the research carried out by the MNT group of the UPC, that has analyzed ...