Methods and apparatus for anchoring resonators
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United States of America Patent
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Apr 24, 2018
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Dec 20, 2013
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Dec 21, 2012
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Abstract
Methods and apparatus for anchoring resonators, such as microelectromechanical systems (MEMS) resonators. A resonator may include a substrate, a mechanical resonating structure, and at least one anchor. The mechanical resonating structure may be configured to resonate in a resonance mode of vibration at a frequency. The anchor may couple the mechanical resonating structure to the substrate. The anchor may be configured to exhibit an acoustic bandgap at the frequency of the resonance mode of vibration of the mechanical resonating structure. The anchor may be oriented in a direction substantially parallel to a direction of propagation of the resonance mode of vibration of the mechanical resonating structure.
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