A 9.45 MHz micromechanical disk resonator with movable electrodes for gap reduction

A 9.45 MHz micromechanical disk resonator with movable electrodes for gap reduction
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带有可移动电极的 9.45 MHz 微机械盘谐振器,用于减小间隙

DOI:
10.1016/j.sna.2016.03.010
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发表时间:
2016-06
影响因子:
4.6
通讯作者:
Du Yijia
Du Yijia
中科院分区:
工程技术3区
文献类型:
--
作者:
Li Xinyi;Bao Jingfu;Huang Yulin;Ling Yuan;Zheng Yingbin;Du Yijia

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本文提出了一种带有可移动电极的微机电酒杯模态盘谐振器。可动电极由静电力驱动,以减小间隙,从而减少插入损耗。通过将间隙从 2.5 μm 减小到 0.5 μm,在 20 V 的相同偏置电压下,插入损耗从 -104 dB 改善到 -81 dB。然而,不稳定的可移动电极导致品质因数从 920,000 下降到 27,200。
A micro-electromechanical wine glass modal disk resonator with movable electrodes is presented in this paper. The movable electrodes were driven by electrostatic force for gap reduction to reduce insertion loss. By reducing the gap from 2.5 μm to 0.5 μm, the insertion loss improved from −104 dB to −81 dB at the same bias voltage of 20 V. However, unstable movable electrodes caused the quality factor to decrease from 920,000 to 27,200.
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