Khajepour A. – TechConnect Briefs

Embedded fiber optic sensors for battery performance monitoring in Lithium ion battery cells

Alemohammad H., Ghannoum A., Zdravkova L., Iyer K., Nieva P., Yu A., Khajepour A., Nieva P., Yu A., Khajepour A., University of Waterloo, CA

This paper is focused on the development of an embedded fiber optic sensor for monitoring the performance of Lithium ion battery (LIB) cells. The number of LIB cells are proliferating mainly due to the global [...]

Effect of Nonlinear Structural Stiffness on the Response of Capacitive MEMS Devices

Shavezipur M., Nieva P., Khajepour A., Hashemi S.M., University of Waterloo, CA

In this paper, a design technique is presented that can linearize the response of MEMS capacitive elements such as tunable capacitors, capacitive sensors and out-of-plane electrostatic actuators. The method combinations the electrode flexibility and nonlinear [...]

A Parallel-plate-based Fishbone-Shape MEMS Tunable Capacitor with Linear Capacitance-Voltage Response

Shavezipur M., Nieva P., Khajepour A., Hashemi S.M., University of Waterloo, CA

Conventional designs for MEMS parallel-plate tunable capacitor suggest rectangular electrodes and linear structural stiffness which offer high Q-factor and quick responses; however, they have low tunability of 50% and nonlinear capacitance-voltage responses. This paper presents [...]

A Novel Topology Optimization Scheme for Micro Electro-Thermo-Mechanical Domains

Motiee M., Khajepour A., Mansour R.R., University of Waterloo, CA

Developing a systematic approach to design optimum Micro-Electro-Mechanical Systems MEMS, recently has received a numerous attention among researchers. Duo to the lack of a systematic design method, typical MEMS devices design procedures encompass trial and [...]

New Analysis Method for Coupled-Field Micro Devices

Motiee M., Khajepour A., Mansour R.R., University of Waterloo, CA

MEMS actuators are typically used for either one time deployment of structures for automatic assembly or constant periodic actuation as in case of micro optic scanners. Electro-thermal actuators rely on the joule heating resulting small [...]

Modeling, Fabrication and Experiment of a Novel Lateral MEMS IF/RF Filter

Motiee M., Khajepour A., Mansour R.R., University of Waterloo, CA

MEMS based mechanical resonators and filters have shown promising characteristics in achieving high Q values and good stability. This paper introduces a novel V-shape coupling element that is used to mechanically couple two clamped-clamped MEMS [...]