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A micromechanical bridge-shaped voltage-controlled oscillator

  • Han Jianqiang 
  • Zhu Changchun 
  • Zhao Hongpo 
  • Liu Junhua 
  • Shao Jun 
Article

Abstract

A novel micromechanical bridge-shaped voltage-controlled oscillator with high Q value was fabricated. The core of this kind of oscillators is an electrothermally excited and piezoresistively detected micromechanical bridge resonator. Its resonance frequency can be adjusted by changing the DC voltage applied to the Wheatstone bridge. Theoretical analysis and experimental data show that its resonance frequency is linear with the square of the DC voltage. The linearity is better than 0.16% and the adjustable frequency range excels 17.15%.

Keywords

voltage-controlled oscillator microbridge resonator MEMS 

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Copyright information

© Science in China Press 2004

Authors and Affiliations

  • Han Jianqiang 
    • 1
  • Zhu Changchun 
    • 1
  • Zhao Hongpo 
    • 1
  • Liu Junhua 
    • 1
  • Shao Jun 
    • 1
  1. 1.Xi'an Jiaotong UniversityXi'anChina

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