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- Title
Temperature-compensated BAW orientations over 500°C on LGT for frequency control and sensor applications.
- Authors
Davulis, P.; da Cunha, M. Pereira
- Abstract
Recently extracted langatate (LGT) elastic, piezoelectric and dielectric constants up to 900°C were utilised to predict the temperature coefficient of frequency (TCF) of bulk acoustic wave (BAW) orientations. A range of LGT BAWorientations were identified with turnover temperatures between 100 and 550°C for use in high-temperature sensor and frequency control applications. In addition, the piezoelectric coupling of the identified orientations was investigated to determine the preferred cuts for high-temperature operation.
- Subjects
DIELECTRIC properties of piezoelectric composites; SURFACE acoustic wave resonators; HOMOGENEOUS catalysis; RESONANT ultrasound spectroscopy; THERMAL expansion measurement
- Publication
Electronics Letters (Wiley-Blackwell), 2013, Vol 49, Issue 3, p54
- ISSN
0013-5194
- Publication type
Article
- DOI
10.1049/el.2012.3699