Temperature‐compensated BAW orientations over 500°C on LGT for frequency control and sensor applications | Zendy

Davulis P. | Zendy; Cunha M. Pereira da | Zendy

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Temperature‐compensated BAW orientations over 500°C on LGT for frequency control and sensor applications

Author(s) -

Davulis P.,

Cunha M. Pereira da

Publication year - 2013

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

ISSN - 1350-911X

DOI - 10.1049/el.2012.3699

Subject(s) - materials science , control (management) , automatic frequency control , optoelectronics , electronic engineering , control theory (sociology) , computer science , electrical engineering , engineering , artificial intelligence

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 BAW orientations 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.

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