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SAW/LSAW COM parameter extraction from computer experiments with harmonic admittance of a periodic array of electrodes.

作者信息

Koskela J, Plessky V P, Salomaa M M

机构信息

Mater. Phys. Lab., Helsinki Univ. of Technol., Espoo.

出版信息

IEEE Trans Ultrason Ferroelectr Freq Control. 1999;46(4):806-16. doi: 10.1109/58.775644.

DOI:10.1109/58.775644
PMID:18238482
Abstract

A novel numerical method for determining the surface acoustic wave and the leaky surface acoustic wave characteristics is proposed. The Green's function method is used to simulate an infinite periodic transducer driven by a periodic voltage. We show that the coupling of modes parameters and the dispersion relation can be extracted from the change in the admittance as the periodicity of the driving voltage is slightly shifted. The method first introduced here leads to significant savings in computing time.

摘要

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