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Coupling-of-modes analysis of thin film plate acoustic wave resonators utilizing the S0 Lamb mode
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics. (Thin Films)
2010 (English)In: IEEE Transactions on Ultrasonics, Ferroelectrics and Frequency Control, ISSN 0885-3010, E-ISSN 1525-8955, Vol. 57, no 4, 801-807 p.Article in journal (Refereed) Published
Abstract [en]

In this work the applicability of the coupling-ofmodes (COM) approach to the analysis of thin AlN film plate acoustic resonators (FPAR), utilizing the S0 Lamb wave, is discussed. Analysis based on the Floquet-Bloch theorem as well as COM parameter extraction from a micromachined FPAR test structure are simultaneously used to verify the applicability of the COM approach. Finite element model simulation is used to further study the contribution of the higher order mass loading effects over the Lamb wave propagation under a periodical grating. A possibility to achieve zero sensitivity of the FPAR resonance with respect to the grating strip thickness is identified and physically interpreted for the first time.

Place, publisher, year, edition, pages
2010. Vol. 57, no 4, 801-807 p.
Keyword [en]
passive RF, microacoustic, thin film, analysis
National Category
Other Electrical Engineering, Electronic Engineering, Information Engineering
Research subject
Engineering Science with specialization in Electronics
Identifiers
URN: urn:nbn:se:uu:diva-123126DOI: 10.1109/TUFFC.2010.1484ISI: 000278295700004OAI: oai:DiVA.org:uu-123126DiVA: diva2:312445
Projects
VR granted "Thin Film Guided Microacoustic Waves in Periodical Systems: Theory and Applications"
Funder
Swedish Research Council, 2009-5056
Available from: 2010-04-23 Created: 2010-04-23 Last updated: 2017-12-12Bibliographically approved

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Yantchev, Ventsislav

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