Now showing items 1-7 of 7

  • A novel tunable multimodal bandpass filter 

    Contreras Lizarraga, Adrián Arturo; Pradell i Cara, Lluís; Ribó, M. (2011)
    Conference report
    Restricted access - publisher's policy
    This paper presents a novel uniplanar tunable bandpass filter. In this filter, each resonator can be reconfigured easily using PIN diodes or MEMS switches. Design equations are derived from a simple circuit model which ...
  • Conmutadores RF-MEMS de baja tensión 

    Contreras Lizarraga, Adrián Arturo; Casals Terré, Jasmina; Pradell i Cara, Lluís; Colpo, Sabrina; Iannacci, Jacopo; Ribó, Miquel; Giacomozzi, Flavio (2012)
    Conference report
    Open Access
    This work shows experimental results of capacitive and ohmic RF-MEMS switches with low actuation voltage. The isolation of capacitive switches is better than 20 dB from 15 GHz and up to 80 GHz according to simulations. ...
  • Filtro uniplanar multimodal reconfigurable 

    Contreras Lizarraga, Adrián Arturo; Ribó, M.; Pradell i Cara, Lluís (2011)
    Conference report
    Restricted access - publisher's policy
    A uniplanar filter based on two coplanar-waveguide odd-mode resonators is presented. The resonator feeding point is easily reconfigured using PIN diodes. As a result, the filter features reconfigurable bandwidth. A multimodal ...
  • Low voltage capacitive and Ohmic RF-MEMS Switches 

    Contreras Lizarraga, Adrián Arturo; Casals Terré, Jasmina; Pradell i Cara, Lluís; Giacomozzi, Flavio; Colpo, Sabrina; Iannacci, Jacopo; Ribó, Miquel (2012)
    Conference report
    Restricted access - publisher's policy
    This work presents experimental results of capacitive and ohmic-contact RF-MEMS switches. The suspension has been designed to compensate stress-gradient effects, and to obtain low pull-in voltages. The measured actuation ...
  • Modelado circuital multimodal de un resonador pasobanda reconfigurable 

    Contreras Lizarraga, Adrián Arturo; Ribó, Miquel; Pradell i Cara, Lluís (2010)
    Conference report
    Open Access
    In this work, we present a simple uniplanar bandpass resonator that can be used for the development of reconfigurable uniplanar filters. The multimodal behaviour of the coplanar waveguide is taken into account for the ...
  • Multimodal microwave filters 

    Contreras Lizarraga, Adrián Arturo (Universitat Politècnica de Catalunya, 2013-11-29)
    Doctoral thesis
  • Uniplanar bandpass filters based on multimodal immitance inverters and end-coupled slotline resonators 

    Contreras Lizarraga, Adrián Arturo; Ribó, Miquel; Pradell i Cara, Lluís; Blondy, Pierre (IEEE Microwave Theory and Techniques Society, 2013)
    Article
    Restricted access - publisher's policy
    This paper presents the design and implementation of uniplanar bandpass filters that use end-coupled slotline resonators and a new kind of multimodal immitance inverter. These inverters are based on an asymmetric ...