Now showing items 1-8 of 8

  • A frequency reconfigurable cell for beam-scanning reflectarrays 

    Rodrigo López, Daniel; Jofre Roca, Lluís; Perruisseau Carrier, Julien (Institute of Electrical and Electronics Engineers (IEEE), 2013)
    Conference report
    Restricted access - publisher's policy
    Reflectarray antennas are excellent candidates for beam-scanning applications thanks to their low loss, light and quasi-planar structure and ease of electronic control. However, reflectarray antennas suffer from narrower ...
  • Antenna array configurations for massive MIMO outdoor base stations 

    Artiga Campos, Xavier; Perruisseau Carrier, Julien; Pérez Neira, Ana Isabel (Institute of Electrical and Electronics Engineers (IEEE), 2014)
    Conference report
    Restricted access - publisher's policy
    Massive MIMO predicts unprecedented capacity and energy efficiency improvements in future networks, by the use of base stations with hundreds of antennas. However the crucial question of determining suitable, or even ...
  • Diplexor reconfigurable para estándares de transmisión y recepción WiFi-UMTS 

    Brito Brito, Zabdiel; Llamas Garro, Ignacio; Navarro Muñoz, Guillem; Perruisseau Carrier, Julien; Pradell i Cara, Lluís (2010)
    Conference report
    Restricted access - publisher's policy
    In this paper a reconfigurable diplexer for WiFi and UMTS transmit and receive bands is presented. The diplexer has four possible frequency and bandwidth states, and consists of two reconfigurable filters connected by an ...
  • Filtro paso-banda con control preciso de frecuencia central y ancho de banda usando interruptores RF MEMS 

    Brito Brito, Zabdiel; Llamas Garro, Ignacio; Perruisseau Carrier, Julien; Pradell i Cara, Lluís; Giacomozzi, Flavio; Colpo, Sabrina (2012)
    Conference report
    Restricted access - publisher's policy
    In this paper a reconfigurable bandpass filter is presented. The filter is able to switch between two different states with a center frequency tunable range of 24 % in C band. Center frequency and bandwidth are precisely ...
  • Filtros para un cabezal de comunicaciones entre vehículos 

    Brito Brito, Zabdiel; Llamas Garro, Ignacio; Navarro Muñoz, Guillem; Perruisseau Carrier, Julien; Pradell i Cara, Lluís (2009)
    Conference report
    Open Access
    In this paper two reconfigurable bandpass filters able to switch between WiFi and UMTS for transmit and receive band standards are presented. The filters are designed in such a way that center frequency and bandwidth sp ...
  • Self-biased reconfigurable graphene stacks for terahertz plasmonics 

    Gomez Diaz, J. S.; Moldovan, C; Capdevila Cascante, Santiago; Romeu Robert, Jordi; Bernard, L. S.; Magrez, A; Ionescu, A. M.; Perruisseau Carrier, Julien (2015-03-01)
    Article
    Open Access
    The gate-controllable complex conductivity of graphene offers unprecedented opportunities for reconfigurable plasmonics at terahertz and mid-infrared frequencies. However, the requirement of a gating electrode close to ...
  • UMTS-WiFi switchable bandpass filter 

    Brito Brito, Zabdiel; Llamas Garro, Ignacio; Navarro Muñoz, Guillem; Perruisseau Carrier, Julien; Pradell i Cara, Lluís (2009)
    Conference report
    Restricted access - publisher's policy
    In this paper a reconfigurable bandpass filter able to switch between WiFi and UMTS transmit band standards is presented. The filter is designed in such a way that center frequency and bandwidth specifications are precisely ...
  • Unit cell for frequency-tunable beamscanning reflectarrays 

    Rodrigo López, Daniel; Jofre Roca, Lluís; Perruisseau Carrier, Julien (2013-12)
    Article
    Restricted access - publisher's policy
    A reflectarray cell able to dynamically control the reflection phase at a variable frequency is presented. This capability enables beam-scanning reflectarrays with frequency reconfigurability, which is a novel capability ...