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A transversely coupled phononic surface acoustic wave transducer
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics.
2014 (English)In: Applied Physics Letters, ISSN 0003-6951, E-ISSN 1077-3118, Vol. 104, no 10, 103503- p.Article in journal (Refereed) Published
Abstract [en]

A concept is demonstrated for the development of a phononic surface acoustic wave interdigital transducer (IDT) able to excite acoustic waves in a transverse manner with respect to the applied electric field. The basic principles of the design and fabrication of the transversely coupled phononic transducer are presented. More specifically, the IDT consists of a regular interdigital electrode configuration on which a 2D array of low profile masses is superimposed. The transversely coupled mode of excitation is explained in terms of the specific localization of the elastic energy along with the operation within the complete frequency bandgap of the composite transducer grating. The experimental results provide solid evidence for the suggested mode of operation.

Place, publisher, year, edition, pages
2014. Vol. 104, no 10, 103503- p.
National Category
Engineering and Technology
Research subject
Engineering Science with specialization in Electronics
URN: urn:nbn:se:uu:diva-223892DOI: 10.1063/1.4868409ISI: 000333082800077OAI: oai:DiVA.org:uu-223892DiVA: diva2:715566
Available from: 2014-05-05 Created: 2014-04-28 Last updated: 2014-07-18Bibliographically approved

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Yantchev, Ventsislav
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Solid State Electronics
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