Evanescently coupled piezoelectric acoustic devices

Eichenfield, Matt

Title: Evanescently coupled piezoelectric acoustic devices

Patent · Tue Nov 26 00:00:00 EST 2019

OSTI ID:1600341

Eichenfield, Matt

An electro-acoustic device includes a plurality of suspended, piezoelectric, acoustically waveguiding membranes supported in a common plane. An input transducer coupled to one of the waveguiding membranes converts input electrical signals to traveling-wave acoustic signals. An output transducer coupled to one of the waveguiding membranes converts acoustic signals to electrical signals. At least two of the waveguiding membrane have parallel straight sections that are longer than a guided acoustic wavelength and that are mutually separated by an air gap having a width less than the guided acoustic wavelength.

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Research Organization:: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: AC04-94AL85000

Assignee:: National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)

Patent Number(s):: 10,491,190

Application Number:: 15/718,796

OSTI ID:: 1600341

Resource Relation:: Patent File Date: 09/28/2017

Country of Publication:: United States

Language:: English

References (12)

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