Abstract
Based on Tiersten’s analysis an accurate calculation of the coupling coefficient dependence on geometrical dimensions and mass loading for quartz and langasite monolithic structures was performed (1).
In this paper we have studied the influence of the material constants on the attenuation characteristics of two-pole langasite monolithic filters by calculation of the dependence between the coupling coefficient and elastic constant c66, piezoelectric constant e26 and Voigt’s elastic constant γ11. We investigated also the effect of mass loading on the coupling coefficient of langasite and quartz monolithic filters and we have found that the effect on langasite filters is lower than on quartz filters.
The relation between the coupling coefficient and the material constants is discussed on crystals grown by various laboratories.
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References
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© 2000 Springer Science+Business Media Dordrecht
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Mateescu, I., Pop, G. (2000). The Influence of the Material Constants and Mass-Loading on Coupling Coefficient of Monolithic Filters. In: Galassi, C., Dinescu, M., Uchino, K., Sayer, M. (eds) Piezoelectric Materials: Advances in Science, Technology and Applications. NATO Science Series, vol 76. Springer, Dordrecht. https://doi.org/10.1007/978-94-011-4094-2_24
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DOI: https://doi.org/10.1007/978-94-011-4094-2_24
Publisher Name: Springer, Dordrecht
Print ISBN: 978-0-7923-6213-5
Online ISBN: 978-94-011-4094-2
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