Evanescently coupled piezoelectric acoustic devices
Abstract
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.
- Inventors:
- Issue Date:
- Research Org.:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1600341
- Patent Number(s):
- 10491190
- Application Number:
- 15/718,796
- Assignee:
- National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
- Patent Classifications (CPCs):
-
G - PHYSICS G01 - MEASURING G01H - MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES
G - PHYSICS G10 - MUSICAL INSTRUMENTS G10K - SOUND-PRODUCING DEVICES
- DOE Contract Number:
- AC04-94AL85000
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 09/28/2017
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 42 ENGINEERING
Citation Formats
Eichenfield, Matt. Evanescently coupled piezoelectric acoustic devices. United States: N. p., 2019.
Web.
Eichenfield, Matt. Evanescently coupled piezoelectric acoustic devices. United States.
Eichenfield, Matt. Tue .
"Evanescently coupled piezoelectric acoustic devices". United States. https://www.osti.gov/servlets/purl/1600341.
@article{osti_1600341,
title = {Evanescently coupled piezoelectric acoustic devices},
author = {Eichenfield, Matt},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Nov 26 00:00:00 EST 2019},
month = {Tue Nov 26 00:00:00 EST 2019}
}
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