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Exploiting Nonlinear Behavior of MEMS Resonators for Filter Applications

[+] Author Affiliations
Saad Ilyas, Mohammad I. Younis

King Abdullah University of Science and Technology, Thuwal, Saudi Arabia

Paper No. DETC2017-67863, pp. V004T09A012; 5 pages
doi:10.1115/DETC2017-67863
From:
  • ASME 2017 International Design Engineering Technical Conferences and Computers and Information in Engineering Conference
  • Volume 4: 22nd Design for Manufacturing and the Life Cycle Conference; 11th International Conference on Micro- and Nanosystems
  • Cleveland, Ohio, USA, August 6–9, 2017
  • Conference Sponsors: Design Engineering Division, Computers and Information in Engineering Division
  • ISBN: 978-0-7918-5816-5
  • Copyright © 2017 by ASME

abstract

We propose combining the hardening and softening nonlinearities of two resonators to realize a near flat pass band filter of almost zero roll-off. The device is composed of two near identical doubly clamped and laterally actuated microbeams made of Silicon. One of the resonators is buckled via thermal loading to produce softening resonance peak. It is then further tuned to create the desired overlap with the hardening resonance peak of the other resonator. This overlapping improves the filter’s pass band flatness and roll-off characteristics, which are highly desirable. This technique can be promising for future generation of filters with superior characteristics.

Copyright © 2017 by ASME

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