Ara es mostren els items 9-15 de 15

    • Nonlinear actuation model for lateral electrostatically-actuated DC-contact RF MEMS series switches. 

      Lázaro Guillén, Antoni; Girbau Sala, David; Pradell i Cara, Lluís; Nebot Serra, Àlvar (JOHN WILEY & SONS INC, 2007-06-01)
      Article
      Accés obert
      In this work, a nonlinear model to predict actuation characteristics in lateral electrostatically-actuated DC-contact MEMS switches is proposed. In this case a parallel-plate approximation cannot be applied. The model ...
    • RF-MEMS switches designed for high-performance uniplanar microwave and mm-wave circuits 

      Pradell i Cara, Lluís; Girbau Sala, David; Ribó Pal, Miquel; Casals Terré, Jasmina; Lázaro Guillén, Antonio; Contreras Lizárraga, Adrián; Llamas Morote, Marco Antonio; Heredia Vega, Julio César; Giacomozzi, Flavio; Margesin, Benno (IntechOpen, 2018-07-18)
      Capítol de llibre
      Accés obert
      Radio frequency microelectromechanical system (RF-MEMS) switches have demonstrated superior electrical performance (lower loss and higher isolation) compared to semiconductor-based devices to implement reconigurable microwave ...
    • RF-MEMS uniplanar 180° phase switch based on a multimodal air-bridged CPW cross 

      Llamas Morote, Marco Antonio; Girbau Sala, David; Ribó, M.; Pradell i Cara, Lluís; Giacomozzi, Flavio; Colpo, S (2011-07)
      Article
      Accés restringit per política de l'editorial
      In this paper, a new compact broadband uniplanar 180 phase switch, based on an air-bridged coplanar-waveguide (CPW) cross loaded with two capacitive-contact microelectromechancial systems (MEMS) switches in opposed (ON/OFF) ...
    • RF-MEMS uniplanar 180º Phase Switch based on switching between two out-of-phase paths 

      Llamas Morote, Marco Antonio; Pradell i Cara, Lluís; Girbau Sala, David; Ribó, Miquel; Lázaro Villa, José Antonio; Giacomozzi, Flavio; Margesin, Benno (2011)
      Article
      Accés restringit per política de l'editorial
      A phase switch based on switching between two twoport passive networks with a phase difference of 180º is reported. Two RF MEMS single-pole-double-throw structures are used to select the phase path. The fabrication is ...
    • Study of intermodulation in RF MEMS variable capacitors 

      Girbau Sala, David; Otegi Urdanpilleta, Nerea; Pradell i Cara, Lluís; Lázaro Guillén, Antoni (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2006-03-31)
      Article
      Accés obert
      This paper provides a rigorous study of the causes and physical origins of intermodulation distortion (IMD) in RF microelectromechanical systems (MEMS) capacitors, its analytical dependence on the MEMS device design ...
    • Tunable dual-band filters based on capacitive-loaded stepped-impedance resonators 

      Girbau Sala, David; Lázaro Guillén, Antoni; Pérez, A.; Martínez, Ester; Pradell i Cara, Lluís; Villarino Villarino, Ramón (2009)
      Text en actes de congrés
      Accés obert
      This paper proposes the design of tunable dual-band filters for multi-band multi-standard systems. The main objective is to provide frequency tunability in the second band while maintaining the first band fixed. To this ...
    • Tunable dual-band resonators for communication systems 

      Girbau Sala, David; Lázaro Guillén, Antoni; Obiols Pérez, Alberto; Martínez, Ester; Pradell i Cara, Lluís; Villarino Villarino, Ramón (2010-06-01)
      Article
      Accés restringit per política de l'editorial
      This paper proposes the design of tunable dual-band resonators for multi-band multi-standard systems. The main objective is to provide frequency tunability in the second resonance while maintaining the first resonance ...