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dc.contributor.authorContreras Lizarraga, Adrián Arturo
dc.contributor.authorCasals Terré, Jasmina
dc.contributor.authorPradell i Cara, Lluís
dc.contributor.authorRibó i Pal, Miquel
dc.contributor.authorHeredia Vega, Julio César
dc.contributor.authorGiacomozzi, Flavio
dc.contributor.authorMargesin, Benno
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament d'Enginyeria Mecànica
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.identifier.citationContreras, A., Casals-Terré, J., Pradell, L., Ribó, M., Heredia, J., Giacomozzi, F., Margesin, B. RF-MEMS switches for a full control of the propagating modes in uniplanar microwave circuits and their application to reconfigurable multimodal microwave filters. "Microsystem technologies", 29 Març 2017, vol. 23, num. 12, p.5959-5975.
dc.descriptionThis is a copy of the author 's final draft version of an article published in the journal Microsystem technologies. The final publication is available at Springer via
dc.description.abstractIn 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 short-circuit for the CPW odd mode) and switchable asymmetric shunt impedances (for transferring energy between modes) are studied and implemented using bridge-type and cantilever-type ohmic-contact switches, respectively. The switchable air bridge is based in a novel double ohmic-contact bridge-type structure. Optimized-shape suspension configurations, namely folded-beam or diagonal-beam for bridge-type switches, and straight-shaped or semicircular-shaped for cantilever-type switches, are used to obtain robust structures against fabrication-stress gradients. The switches are modelled using a coupled-field 3D finite-element mechanical analysis showing a low to moderate pull-in voltage. The fabricated switches are experimentally characterized using S-parameter and DC measurements. The measured pull-in voltages agree well with the simulated values. From S-parameter measurements, an electrical model with a very good agreement for both switch states (ON and OFF) has been obtained. The model is used in the design of reconfigurable CPW multimodal microwave filters.
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació
dc.subject.lcshMicrowave circuits
dc.subject.otherUniplanar circuits
dc.subject.otherReconfigurable microwave filters
dc.subject.otherCPW multimodal circuits
dc.titleRF-MEMS switches for a full control of the propagating modes in uniplanar microwave circuits and their application to reconfigurable multimodal microwave filters
dc.subject.lemacCircuits de microones
dc.contributor.groupUniversitat Politècnica de Catalunya. RF&MW - Grup de Recerca de sistemes, dispositius i materials de RF i microones
dc.description.peerreviewedPeer Reviewed
dc.rights.accessOpen Access
dc.description.versionPostprint (author's final draft)
upcommons.citation.authorContreras, A.; Casals-Terré, J.; Pradell, L.; Ribó, M.; Heredia, J.; Giacomozzi, F.; Margesin, B.
upcommons.citation.publicationNameMicrosystem technologies

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