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Phononic SAW Transducers with Complete Frequency Bandgap Characteristics
Uppsala University, Disciplinary Domain of Science and Technology, Technology, Department of Engineering Sciences, Solid State Electronics.
2014 (English)In: 2014 IEEE INTERNATIONAL FREQUENCY CONTROL SYMPOSIUM (FCS), 2014, 508-509 p.Conference paper, Published paper (Refereed)
Abstract [en]

2D composite grating building blocks with hexagonal symmetry are proposed and analyzed as efficient reflectors and transducers in the design of low loss surface acoustic wave (SAW) resonators. Eigen-frequency and frequency response finite element analyses (FEA) are used to study the propagation and excitation characteristics of SAWs in the 2D composite structures. The proposed structures have the advantage of being compatible with the planar SAW technology, while exhibiting a complete frequency bandgap. Three distinct types SAW phononic transducers are here invented and their operation confirmed both analytically and experimentally. The proposed research paves the way for subsequent implementation of the phononic bandgap technology in high performance microacoustic RF components.

Place, publisher, year, edition, pages
2014. 508-509 p.
Series
IEEE International Frequency Control Symposium, ISSN 1075-6787
Keyword [en]
resonator, phononic, MEMS, high frequency
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:uu:diva-246756DOI: 10.1109/FCS.2014.6859984ISI: 000346295600140ISBN: 978-1-4799-4916-8 (print)OAI: oai:DiVA.org:uu-246756DiVA: diva2:794165
Conference
1st IEEE International Frequency Control Symposium (FCS), MAY 19-22, 2014, Taipei, TAIWAN
Available from: 2015-03-10 Created: 2015-03-10 Last updated: 2015-03-10Bibliographically approved

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