Exploració per tema "Antenes (Electrònica)"

Ara es mostren els items 1-20 de 329

    • 100 GHz MST retina for real time near field imaging 

      Garg, Vaibhav (Universitat Politècnica de Catalunya, 2012-06-26)
      Projecte Final de Màster Oficial
      Accés obert
      [ANGLÈS] For an imaging system, a good compromise is needed between the resolution of the image and the penetration ability of the electromagnetic wave. In order to obtain a good resolution, a high frequency system is ...

    • 3-D printed UWB microwave bodyscope for biomedical measurements 

      Rashid, Saba; Jofre Roca, Lluís; Garrido, Alejandra; González, Giselle; Ding, Yongsheng; Aguasca Solé, Alberto; O'Callaghan Castellà, Juan Manuel; Romeu Robert, Jordi (2019-02-15)
      Article
      Accés obert
      In this letter, a three-dimensional (3-D) printed compact ultrawideband (UWB) extended gap ridge horn (EGRH) antenna designed to be used for biological measurements of the human body is described. The operational frequency ...

    • 3Cat-4 nanosatellite mission: development of the ground station 

      Solanellas Bofarull, Arnau (Universitat Politècnica de Catalunya, 2023-07-07)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat
      This project focuses on the development of a versatile and adaptable ground station, that can be fully operated remotely, so as to meet the mission requirements of the 3Cat-4 satellite. This ground station, has been ...

    • 5G multi-antenna vehicle scattering characterization 

      Dumre, Kushal (Universitat Politècnica de Catalunya, 2019-06-20)
      Projecte Final de Màster Oficial
      Accés obert
      In today's era of internet, everything is tending to be intelligent enough to be managed by itself. Following the same line, vehicles are more than vehicular machines. They are tending to be autonomously driven, able to ...

    • 60GHz material characterization and waveguide antenna array design 

      Papio Toda, Anna (Universitat Politècnica de Catalunya, 2009-01-08)
      Projecte/Treball Final de Carrera
      Accés obert
      Cálculo de la permitividad compleja de materiales usados en PCB y diseño de una agrupación de antenas para la banda de 60GHz.

    • A bright single photon source: Strong coupling of a single molecule to a plasmonic nano-antenna cavity 

      Izquierdo López, Raúl (Universitat Politècnica de Catalunya, 2019-07-23)
      Projecte Final de Màster Oficial
      Accés obert
      Single photon emitters are quantum light sources that can enable a variety of quantum based technologies such as quantum information or quantum random number generation, among others. These single photon emitters can have ...

    • A communication-based algorithm to avoid the human body effect on antennas 

      Martínez García, Javier (Universitat Politècnica de Catalunya, 2011-07-21)
      Projecte/Treball Final de Carrera
      Accés obert
      Realitzat a/amb:   Qing hua da xue
      English: The aim of this project is to design and implement a simple and reliable system able to minimize the negative effect that users cause on the antenna performance of mobile devices when interacting with these. The ...

    • A compact dual-band planar monopole antenna using fractal rings and A Y-shaped feeding transmission line 

      Djafri, Kahina; Challal, Mouloud; Romeu Robert, Jordi (De Gruytr, 2018-01-01)
      Article
      Accés obert
      This paper presents a novel design approach of a compact dual-band monopole antenna with an overall size of 18.9x13x1.6mm3. The proposed antenna is composed of a fractal ring shaped patch fed by a Y-shaped transmission ...

    • A figure-of-merit for pattern reconfigurable antennas 

      Rodrigo López, Daniel; Romeu Robert, Jordi; Capdevila Cascante, Santiago; Jofre Roca, Lluís (2013-03)
      Article
      Accés restringit per política de l'editorial
      The performance of pattern reconfigurable antennas is evaluated with the purpose of deriving a figure-of-merit for pattern reconfigurability. A general formulation is provided for the average gain achieved by a ...

    • A graphene based plasmonic antenna design for communication in the THz regime 

      Suessmeier, Christoph; Schaeffer, Stephan; Abadal Cavallé, Sergi; Alarcón Cot, Eduardo José; Hosseininejad, Seyed Ehsan; Wigger, Anna K.; Stock, Daniel; Wagner, Stefan; Cabellos Aparicio, Alberto; Lemme, Max; Bolívar, Peter Haring (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      We show the first THz emission of a graphene based plasmonic antenna structure. Furthermore we present the minimum material requirements for an operational graphene antenna in terms of chemical potential µc and relaxation time t.

    • A Ku band circularly polarized 2×2 microstrip antenna array for remote sensing applications 

      Ferré, Roger; Mira, Fermín; Luzi, Guido; Mateu Mateu, Jordi; Kalialakis, C. (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper reports the development of a Circularly Polarized (CP) microstrip patch array working at Ku band and in particular between 16.9-17.2GHz for remote sensing applications. The design is based on a sequential ...

    • A linear array design based on non-uniform Chebyshev distribution for high gain low sidelobe level millimetre wave 5G applications 

      Ahmad, Shaheen (Universitat Politècnica de Catalunya, 2020-07)
      Projecte Final de Màster Oficial
      Accés obert
      Antenna is the front-end element and is a major part of designing a robust communication system. The increased user density and high data rate requirements now a days can be overcome by a wideband antennas capable of having ...

    • A low-complexity method for antenna selection in spatial modulation systems 

      Ntontin, Konstantinos; Di Renzo, Marco; Pérez Neira, Ana Isabel; Verikoukis, Christos (2013-11-13)
      Article
      Accés restringit per política de l'editorial
      In this Letter, a low-complexity Euclidean distancebased method for antenna subset selection in Spatial Modulation systems is presented. The proposed method avoids the high complexity of both the optimal exhaustive ...

    • A low-profile textile MIMO antenna using felt substrate for industrial, scientific and medical band 

      Ullah, Sana; Fernández García, Raúl; Gil Galí, Ignacio (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      A low profile textile MIMO antenna design for Industrial scientific and medical bands at 5.8 GHz is presented. The design consists of 2 embroidered antennas based on vertical and horizontal strips with a shared partial ...

    • A mechanism to electrically enlarge the ground plane of handset antennas: A bandwidth enhancement technique 

      Anguera, Jaume; Andújar Linares, Aurora; Puente Baliarda, Carles (2011-07)
      Article
      Accés restringit per política de l'editorial
      There is a need of developing new techniques for enhancing the bandwidth of handset antennas without increasing the antenna volume in order to incorporate more frequency bands into the cell phones. The technique to enhance ...

    • A microstrip array operating in a fracton mode [fractal geometry] 

      Anguera Pros, Jaume; Montesinos, Gemma; Puente Baliarda, Carles; Borja, C.; Soler, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2003)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A high-directivity microstrip array using multilevel elements based on a fractal geometry is theoretically compared with one using a circular patches. Within the same electrical area, the same directivity can be obtained. ...

    • A microwave invisibility cloak: the design, simulation, and measurement of a simple and effective frequency-selective surface-based mantle cloak 

      Yuste, Pedro; Rius Casals, Juan Manuel; Romeu Robert, Jordi; Blanch Boris, Sebastián; Heldring, Alexander; Úbeda Farré, Eduard (2018-06-26)
      Article
      Accés obert
      In recent years, there has been a growing interest in developing invisibility cloaks that can conceal an object. These techniques are often based either on coating a dielectric or conducting object with a homogeneous ...

    • A model for photocurrent generation in photoconductive antennas 

      López Menchón, Héctor; Revuelta Martinez, Sergio; Santos Blanco, M. Concepción; Romeu Robert, Jordi; Rius Casals, Juan Manuel (2019)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      The laser-induced current carrier generation and transport under large biasing voltages in photoconductive materials located in electrode gap region of photoconductive antennas is a complex process involving many different ...

    • A new class of antenna array with a reconfigurable element factor 

      Li, Zhouyuan; Rodrigo López, Daniel; Jofre Roca, Lluís; Cetiner, Bedri Artug (2013-04)
      Article
      Accés restringit per política de l'editorial
      A parasitic layer-based multifunctional reconfigurable antenna array (MRAA) formed by the linear combination of four (4 1) identical multifunctional reconfigurable antenna (MRA) elements is presented. Each MRA produces ...

    • A novel approach to MISO interference networks under maximum receive-power regulation 

      Pérez Neira, Ana Isabel; Vázquez Oliver, Miguel Ángel; Lagunas Hernandez, Miguel A. (WSEAS Press, 2018-07-01)
      Article
      Accés obert
      An aggressive frequency reuse is expected within the next years in order to increase the spectral ef¿ciency. Multiuser interference by all in-band transmitters can create a communication bottleneck and, therefore, it is ...