Theory for shear horizontal surface acoustic waves in finite synchronous resonators

Julius Koskela, Martti M. Salomaa

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)


An analytic approach is developed for simulating synchronous resonators employing shear horizontally polarized surface acoustic waves, such as surface transverse waves, and leaky surface acoustic waves on LiTaO3 and LiNbO3 substrates. The approach, based on a simplified parametrized Green's function theory, allows the description of the localization of the wave and the interaction with bulk acoustic waves. An analytic expression is found for the harmonic admittance of an infinite periodic electrode array, and approximate corrections for finite structures are presented. The model enables fast computation of the admittance of synchronous resonators, and it compares favorably with experiments and numerical simulations.

Original languageEnglish
Pages (from-to)1550-1560
Number of pages11
JournalIEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
Issue number6
Publication statusPublished - 1 Nov 2000
MoE publication typeA1 Journal article-refereed


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