This paper presents a low-actuation-voltage micro-electromechanical system (MEMS) capacitive shunt switch which has a very large bandwidth (4 GHz to 24 GHz). In this work, the isolation of MEMS switch is improved by adding two short high impedance transmission lines at the beginning and end of a coplanar waveguide (CPW). Simulating the switch demonstrates that a return loss (S11) is less than -...

The impetus of this study is to investigate the chaotic behavior of a size-dependent nano-beam with double-sided electrostatic actuation, incorporating surface energy effect and intermolecular interactions. The geometrically nonlinear beam model is based on Euler-Bernoulli beam assumption. The influence of the small-scale and the surface energy effect are modeled by implementing the consistent ...

Electrowetting (EW) induced droplet motion has been explored in the past decade in view of its promising applications in the field of microfluidics. This paper demonstrates the potential of energy-based analyses for modeling the performance of EW-based fluid actuation systems. Analyses based on system energy minimization offer simplified modeling tools to predict the overall performance of EW s...

Electrowetting (EW) induced droplet motion has been explored in the past decade in view of its promising applications in the field of microfluidics. This paper demonstrates the potential of energy-based analyses for modeling the performance of EW-based fluid actuation systems. Analyses based on system energy minimization offer simplified modeling tools to predict overall performance of EW syste...

A novel method for the fabrication of dielectric elastomer actuators (DEAs) combines acrylic polymers and single wall carbon nanotube network electrodes. DEAs made using this technique do not require prestretching, have extremely thin electrodes, and can be actuated at low voltage. The method is applied to create a multimorph device with nine actuation modes based on just four inputs.

A radically novel approach towards isotachophoresis is presented in which a nanochannel-induced ionic depletion zone replaces a trailing electrolyte. This makes depletion zone isotachophoresis (dzITP) a single-electrolyte focusing and separation technique. Moreover, focusing strength and positions of analyte zones can be precisely controlled by a three-point voltage actuation scheme. Thus, dzIT...

Lithium-ion batteries with a Si anode can drive large mechanical actuation by utilizing the dramatic volume changes of the electrode during the charge/discharge cycles. A large loading of more than 10 MPa can be actuated by a LiFePO4 ||Si full battery with a rapid response while the driving voltage is lower than 4 V.

By controlling the degrees of freedom for the components in the system and using a PWL solver, a tradeoff between speed and accuracy is realized. Electrical components are modeled using a similar MNA technique. The interaction between electrical and mechanical components is accomplished by modeling the coupled energy between the domains. In this paper we demonstrate the capabilities of our syst...

By controlling the degrees of freedom for the components in the system and using a PWL solver, a tradeoff between speed and accuracy is realized. Electrical components are modeled using a similar MNA technique. The interaction between electrical and mechanical components is accomplished by modeling the coupled energy between the domains. In this paper we demonstrate the capabilities of our syst...

This work reports on the modelling of, and experiments on, a method in which liquid is transported as droplets on a planar hydrophobic surface with no moving parts, merely through electrostatic forces generated by the underlying electrodes. Two-directional transportation along a straight electrode path and across a junction, fusion of two droplets and methods for importing, exporting and filter...