Equivalent circuit modeling of coupled resonator filters

Pedro De Paco, Óscar Meuéndez, Eden Corrales

Research output: Contribution to journalArticleResearchpeer-review

10 Citations (Scopus)

Abstract

Using the stacked crystal filter (SCF) concept, a coupled resonator filter (CRF) can be interpreted as a device in which 2 piezoresonators are stacked on top of each other in such a way that a certain degree of acoustic interaction occurs. The work presented in this paper reports a novel all-electrical model for the CRF. The model associates acoustical coupling with an equivalent electrical coupling between resonators. The resulting equivalent circuit makes it possible to apply classical filter synthesis techniques directly based on the coupling control between resonators. It complements with a synthesis approach the analysis approach of the Mason model. © 2008 IEEE.
Original languageEnglish
Article number4626931
Pages (from-to)2030-2031
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Volume55
DOIs
Publication statusPublished - 1 Sep 2008

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