First-order reflection coefficient of surface acoustic waves from thin-strip overlays
- 1 September 1979
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 50 (9) , 5661-5665
- https://doi.org/10.1063/1.326742
Abstract
The problem of surface‐wave reflection at thin‐strip overlays occurs frequently in signal‐processing devices. Grooved array reflectors employ strip overlays of the same material as the substrate, while metallic transducers incorporate strips of a material different from the substrate. A simple model for calculating the reflection coefficient of thin overlays is described, based on the normal‐mode analysis developed by Auld. Calculated values are in close agreement with reported experimental values for grooves in ST‐X quartz and Y‐Z lithium niobate, and for aluminum on ST‐X quartz.This publication has 2 references indexed in Scilit:
- Reflection of Rayleigh waves by strips, grooves, and periodic arrays of strips or groovesThe Journal of the Acoustical Society of America, 1978
- Analysis of surface waves using orthogonal functionsJournal of Applied Physics, 1978