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Piezoelectric Resonators Excited by Lateral Electric Fields Based on a LiTaO3 Single Crystal

1
Piezoelectric Device Laboratory, School of Mechanical Engineering and Mechanics, Ningbo University, Ningbo 315211, China
2
Institute of Acoustics, the Chinese Academy of Sciences, Beijing 100190, China
*
Authors to whom correspondence should be addressed.
Crystals 2020, 10(6), 525; https://doi.org/10.3390/cryst10060525
Received: 25 May 2020 / Revised: 14 June 2020 / Accepted: 15 June 2020 / Published: 18 June 2020
In the present study, piezoelectric resonators under lateral field excitation (LFE) based on a LiTaO3 single crystal are modeled and analyzed. An electrically forced vibration study is employed to acquire the motional capacitance curve and vibration mode shapes. A finite element approach is utilized to investigate the influences of some basic parameters, such as the electrode/plate mass ratio, electrode gap, and electrode width on resonance characteristics. In addition, the design criteria for the gap and width of the electrode of the LiTaO3 LFE resonators are obtained by analyzing the effects of those parameters on vibration strain distributions. The obtained results are essential for designing LFE piezoelectric resonators by using a LiTaO3 single crystal. View Full-Text
Keywords: LiTaO3 single crystal; piezoelectric resonators; lateral field excitation; vibrations LiTaO3 single crystal; piezoelectric resonators; lateral field excitation; vibrations
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MDPI and ACS Style

Shi, H.; Yan, L.; Zheng, Y.; Ma, T.; Wang, M.; Huang, B.; Yuan, L.; Wang, J.; Du, J.; Zhang, H. Piezoelectric Resonators Excited by Lateral Electric Fields Based on a LiTaO3 Single Crystal. Crystals 2020, 10, 525.

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