Title
Symmetric toggle structured MEMS linear variable capacitor with large tunning ratio
Abstract
A microelectromechanical-system (MEMS) variable capacitor with symmetric toggle structure is proposed to achieve an excellent linearity of the C-V response and a large capacitance tuning ratio. Based on lever principle, flexible top plate of the capacitor moves upwards when applying the voltage on the control electrodes increases, which results in a highly linear decrease of the capacitance with increasing control voltage. The proposed MEMS variable capacitor was modeled and simulated using ANSYS software and fabricated using surface micromachining process. The results show a high linearity factor (LF) of 96.3% in C-V response and a large tuning ratio of 160% in a low actuation voltage range from 0 V to 30 V. The LF even reaches 98.9% from 10 V to 30 V.
Year
DOI
Venue
2013
10.1109/NEMS.2013.6559948
NEMS
Keywords
Field
DocType
linearity factor,symmetric toggle structured mems linear variable capacitor,micromechanical devices,ansys software,microelectromechanical system,tunable,capacitance tuning ratio,linear capacitance-voltage response,mems capacitor,surface micromachining process,capacitors,voltage 0 v to 30 v,c-v response linearity,control voltage,toggle structure,actuation voltage,micromachining,control electrodes,tuning,electrodes,capacitance
Composite material,Capacitor,Variable capacitor,Capacitance,Surface micromachining,Microelectromechanical systems,Linearity,Lever,Voltage,Materials science,Optoelectronics
Conference
Volume
Issue
ISSN
null
null
null
ISBN
Citations 
PageRank 
978-1-4673-6351-8
0
0.34
References 
Authors
1
4
Name
Order
Citations
PageRank
Ling Li100.68
Chenxu Zhao200.34
Mengwei Li300.34
Zewen Liu425.78