Browsing by Author "Contreras Lizarraga, Adrián Arturo"

Now showing items 1-11 of 11

    • 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. ...

    • Dynamic customer virtual network reconfiguration with QoS constraints and bandwidth guarantees 

      Asensio Carmona, Adrian; Ruiz Ramírez, Marc; Contreras Lizarraga, Adrián Arturo; Velasco Esteban, Luis Domingo; Junyent Giralt, Gabriel (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Restricted access - publisher's policy
      An algorithm for Customer Virtual Network (CVN) reconfiguration with QoS constraints and bandwidth guarantees is presented. An MPLS virtual network supporting CVNs is pre-planned or dynamically reconfigured. Exhaustive ...

    • 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 ...

    • K-band RF-MEMS uniplanar reconfigurable-bandwidth bandpass filter using multimodal immittance inverters 

      Contreras Lizarraga, Adrián Arturo; Ribó i Pal, Miquel; Pradell i Cara, Lluís; Casals Terré, Jasmina; Giacomozzi, Flavio; Iannacci, Jacopo (Institution of Electrical Engineers, 2013-05-23)
      Article
      Restricted access - publisher's policy
      A K-band RF-MEMS uniplanar second-order bandpass filter with reconfigurable bandwidth is presented. The filter is based on inductively-coupled half-wavelength slotline resonators and CPW-slotline multimodal immittance ...

    • 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
      Open Access
      This thesis presents the conception, design and implementation of new topologies of multimodal microwave resonators and filters, using a combination of uniplanar technologies such as coplanar waveguide (CPW), coplanar ...

    • Reduced-length uniplanar bandpass filters based on coplanar-waveguide-slotline tees 

      Contreras Lizarraga, Adrián Arturo; Pradell i Cara, Lluís; Ribó i Pal, Miquel; Blondy, Pierre (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Restricted access - publisher's policy
      This paper presents the design and implementation of multimodal uniplanar bandpass filters which use loaded coplanar-waveguide-slotline tees in the slotline resonators to reduce the filter length. The tees are theoretically ...

    • RF-MEMS switches for a full control of the propagating modes in uniplanar microwave circuits and their application to reconfigurable multimodal microwave filters 

      Contreras Lizarraga, Adrián Arturo; Casals Terré, Jasmina; Pradell i Cara, Lluís; Ribó i Pal, Miquel; Heredia Vega, Julio César; Giacomozzi, Flavio; Margesin, Benno (2017-03-29)
      Article
      Open Access
      In this paper, new RF-MEMS switch configurations are proposed to enable control of the propagating (even and odd) modes in multimodal CPW transmission structures. Specifically, a switchable air bridge (a switchable ...

    • 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 ...