The scattering of surface acoustic waves by electrical effects in two-dimensional metal film structures
- 1 November 1988
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
- Vol. 35 (6), 723-735
- https://doi.org/10.1109/58.9329
Abstract
A theory is presented for the scattering of surface acoustic waves by electrical effects in thin metal films of arbitrary shape on the surface of a piezoelectric material. A Green's function approach is used, and an expression for the two-dimensional Green's function appropriate to the problem is given. General expressions are obtained for the far-field radiation pattern and for the response of an interdigital transducer to a single scatterer. Expressions for the reflection and velocity perturbation due to periodic arrays of scatterers are also presented. Good agreement is found when the theoretical predictions are compared with a wide range of experimental results on lithium niobate.<>Keywords
This publication has 12 references indexed in Scilit:
- High-performance SAW dispersive delay line using reflective thin metal dot arraysElectronics Letters, 1986
- Simplified Green's function for SAW generation which allows for the LSWElectronics Letters, 1984
- Influence of size and shape on reflection of surface acoustic waves by thin aluminium dots on lithium niobateElectronics Letters, 1982
- An analytical theory for the scattering of surface acoustic waves by a single electrode in a periodic array on a piezoelectric substrateJournal of Applied Physics, 1980
- Quasi-Static Analysis of Generalized SAW Transducers Using the Green's Function MethodIEEE Transactions on Sonics and Ultrasonics, 1980
- Analysis of Generation and Detection of Surface and Bulk Acoustic Waves by Interdigital TransducersIEEE Transactions on Sonics and Ultrasonics, 1977
- S.A.W. reflecting arraysElectronics Letters, 1976
- SAW Resonators Using Low-Loss "Waffle-Iron" ReflectorsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1976
- Reflection of Surfaces Waves from Periodic DiscontinuitiesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,1976
- Acoustic surface waves in piezoelectric materials with periodic metal strips on the surfaceIEEE Transactions on Electron Devices, 1973