Improved quality factor of Hetero Acoustic Layer (HAL) SAW resonator combining LiTaO3 thin plate and quartz substrate

Michio Kadota, Shuji Tanaka

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

For mobile communication, acoustic wave filters are being continuously required better steepness of a passband and a smaller temperature coefficient of frequency (TCF). Recently, various Hetero Acoustic Layer (HAL) types of surface acoustic wave (SAW) devices were reported by different groups including us [1-5]. HAL SAW devices inherently have many variations of structure and a lot of potentials. In this study, we report the bandwidth (BW) and impedance ratio (Z ratio) of different designs of HAL SAW resonators using a LiTaO3 thin plate on a quartz substrates.

Original languageEnglish
Title of host publication2017 IEEE International Ultrasonics Symposium, IUS 2017
PublisherIEEE Computer Society
ISBN (Electronic)9781538633830
DOIs
Publication statusPublished - 2017 Oct 31
Event2017 IEEE International Ultrasonics Symposium, IUS 2017 - Washington, United States
Duration: 2017 Sep 62017 Sep 9

Publication series

NameIEEE International Ultrasonics Symposium, IUS
ISSN (Print)1948-5719
ISSN (Electronic)1948-5727

Other

Other2017 IEEE International Ultrasonics Symposium, IUS 2017
CountryUnited States
CityWashington
Period17/9/617/9/9

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

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