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Author(s):
Meier, H.; Schneiderbauer, B.; Russer, Peter H. 
Title:
Propagation of Leaky Surface Acoustic Waves Under Thin Periodic Metal Electrodes 
Abstract:
Leaky surface acoustic waves (LSAWs) propagating under thin periodic metal gratings on anisotropic and piezoelectric substrates are investigated. The inherent physical behavior of LSAWs, consisting of coupled modes including terms decaying into the substrate and a term representing a radiating bulk wave, under thin metal strips is explained. A field theoretical analysis that fits both the mechanical and electrical periodic boundary conditions is developed. Four types of electrically connected me...    »
 
Keywords:
Al-LiTaO3, anisotropic substrates, attenuation constant, bulk wave scattering, coupled modes, dispersion relation, dispersion relations, electrically connected metal strips, frequency dependence, leaky surface acoustic waves, LiTaO3 substrate, mechanical surface perturbation, periodic boundary conditions, periodic metal gratings, piezoelectric substrates, radiating bulk wave, surface acoustic wave devices, surface acoustic waves, thin periodic metal electrodes, ultrasonic propagation 
Book / Congress title:
IEEE Ultrasonics Symposium 
Volume:
Publisher address:
Tucson, AZ, USA 
Year:
1992 
Month:
oct 
Pages:
441--444