Author(s): Chen, Zeji; Wang, Tianyun; Jia, Qianqian; Yang, Jinling; Yuan, Quan; Zhu, Yinfang; Yang, Fuhua

Source: INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES Volume: 204 Article Number: 106484 DOI: 10.1016/j.ijmecsci.2021.106484 Published: AUG 15 2021

Abstract: A B S T R A C T This work presents a high-performance Lame mode resonator with high Q values. The anchor loss and thermoelastic damping (TED) were effectively decreased with the optimized tether design and etch hole distribution. A simple and reliable process was developed to batch fabricate the Lame mode resonators with nano-scale spacing gap. In air, a low bias voltage of 2.5 V can excite a resonance peak height over 26 dB for the resonator with high Q of 8900. In vacuum, the required bias voltage was further down to 1.5 V, which is the lowest one among the reported Lame mode resonators. A boosted Q value of 128400 was obtained, corresponding to the highest f x Q product of 6.60 x 10 12 among the state-of-art perforated ones. Moreover, the nonlinearities were experimentally observed, which provides helpful guidance on the stable operation of the resonators. The proposed resonator could have potential in building up advanced wireless communication systems with low power consumption and high-level integration.

Accession Number: WOS:000674506800001

ISSN: 0020-7403

eISSN: 1879-2162

Full Text: https://www.sciencedirect.com/science/article/pii/S0020740321002198?via%3Dihub