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Parametrically Excited MEMS-Based Filters

  • Steven W. Shaw
  • Kimberly L. Turner
  • Jeffrey F. Rhoads
  • Rajashree Baskaran
Conference paper
Part of the Solid Mechanics and its Applications book series (SMIA, volume 122)

Abstract

In this paper we describe the dynamics of MEMS oscillators that can be used as frequency filters. The unique feature of these devices is that they use parametric resonance, as opposed to the usual linear resonance, for frequency selection. However, their response in the parametric resonance zone has some undesirable features from the standpoint of filter performance, most notably that their bandwidth depends on the amplitude of the input and the nonlinear nature of the response. Here we provide a brief background on filters, a MEMS oscillator that overcomes some of the deficiencies, and we offer a description of how one might utilize a pair of these MEMS oscillators to build a band-pass filter with nearly ideal stopband rejection. These designs are made possible by the fact that MEMS devices are highly tunable, which allows one to build in system features to achieve desired performance.

Key words

MEMS parametric resonance filters 

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References

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Copyright information

© Springer 2005

Authors and Affiliations

  • Steven W. Shaw
    • 1
  • Kimberly L. Turner
    • 2
  • Jeffrey F. Rhoads
    • 1
  • Rajashree Baskaran
    • 2
  1. 1.Department of Mechanical EngineeringMichigan State University
  2. 2.Department of Mechanical and Environmental EngineeringUniversity of California — Santa Barbara

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