A three-port acoustic lattice model for piezoelectric transducers containing opposing zones of polarization

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Ramadas, S.N. and Hayward, G. and O'Leary, R.L. and McCunnie, T. and Mulholland, A. J. and Troge, A. and Pethrick, R.A. and Robertson, D. and Murray, V. (2007) A three-port acoustic lattice model for piezoelectric transducers containing opposing zones of polarization. In: 2007 IEEE International Ultrasonics Symposium, 2007-10-28 - 2007-10-31. (https://doi.org/10.1109/ULTSYM.2006.479)

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Abstract

Inversion Layer Transducers (ILT) have attracted considerable interest in the recent past, due to the wide bandwidth and even harmonic sensitivity. This paper presents a new three-port lattice model for ILT devices. Based on linear systems theory, a discrete bi-directional lattice is used to describe the mechanical wave propagation and continuous transfer function to represent the electrical parameter. The mathematical formulation for an ILT configuration, and a straightforward physical interpretation of the lattice model is presented. A selection of experimental and simulation results are included to demonstrate the feasibility of the technique

ORCID iDs

Ramadas, S.N., Hayward, G., O'Leary, R.L. ORCID logoORCID: https://orcid.org/0000-0002-4092-2101, McCunnie, T., Mulholland, A. J. ORCID logoORCID: https://orcid.org/0000-0002-3626-4556, Troge, A., Pethrick, R.A., Robertson, D. and Murray, V.;
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