Nano Science and Technology Institute
Nanotech 2009 Vol. 3
Nanotech 2009 Vol. 3
Nanotechnology 2009: Biofuels, Renewable Energy, Coatings, Fluidics and Compact Modeling
Chapter 5: Modeling and Simulation of Micro and Nano Systems

A Comparison of Surface Acoustic Wave Modeling Methods

Authors:W.C. Wilson, G.M. Atkinson
Affilation:NASA Langley Research Center, US
Pages:347 - 350
Keywords:surface acoustic wave, modeling, transmission line matrix method
Abstract:Surface Acoustic Wave (SAW) technology is low cost, rugged, lightweight, extremely low power and can be used to develop passive wireless sensors. For these reasons, NASA is investigating the use of SAW technology for Integrated Vehicle Health Monitoring (IVHM) of aerospace structures. To facilitate rapid prototyping of passive SAW sensors for aerospace applications, SAW models have been developed. In this paper we compare a first order model, a conventional matrix model, and a modified matrix model with results from prototype devices. Some preliminary results are given in Figure 2. These preliminary results show that the modified matrix methods are more accurate especially for characterization of the frequency response.
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