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dc.contributor.authorCollado Gómez, Juan Carlos
dc.contributor.authorRocas Cantenys, Eduard
dc.contributor.authorMateu Mateu, Jordi
dc.contributor.authorPadilla Díaz, Alberto
dc.contributor.authorO'Callaghan Castellà, Juan Manuel
dc.contributor.otherUniversitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.identifier.citationCollado, J. [et al.]. Nonlinear distributed model for bulk acoustic wave resonators. "IEEE transactions on microwave theory and techniques", Desembre 2009, vol. 57, núm. 12, p. 3019-3029.
dc.description.abstractThis work expands the model proposed by Krimtholz, Leedom, and Matthaei (KLM) model to account for the nonlinear effects occurring in acoustic devices due to the nonlinear stiffened elasticity.We show that a nonlinear distributed capacitance in the acoustic transmission line of the KLM model can account for the distributed nature of the nonlinear effects. Specifically, we use the nonlinear telegrapher’s equation to find closed-form equations for intermodulation distortion and harmonic generation. We confirm the validity of these equations by comparing their results with those provided by aKLMequivalent circuit in which the nonlinear transmission line is implemented by cascading many L-C cells having a voltage-dependent capacitance. To further confirm the model, we show measured nonlinear effects in a thin film bulk acoustic resonator in close agreement with the equivalent circuit simulations.
dc.format.extent11 p.
dc.subjectÀrees temàtiques de la UPC::Enginyeria de la telecomunicació
dc.subject.lcshNonlinear theories
dc.subject.otherBulk acoustic wave (BAW) Film bulk acoustic Resonator
dc.titleNonlinear distributed model for bulk acoustic wave resonators
dc.contributor.groupUniversitat Politècnica de Catalunya. RF&MW - Grup de Recerca de sistemes, dispositius i materials de RF i microones
dc.rights.accessOpen Access
dc.description.versionPostprint (published version)
local.citation.authorCollado, J.; Rocas, E.; Mateu, J.; Padilla, A.; O'Callaghan, J.
local.citation.publicationNameIEEE transactions on microwave theory and techniques

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