In this study, we propose a new equivalent circuit model of variable inductors. We have proposed variable inductors with metal plate moving with a microelectromechanical system (MEMS) actuator. The proposed model consists of a conventional single-pi model, networks for silicon substrate and metal plate flowing eddy current, and coupling coefficients between these networks. The model is verified by fitting with measured data. Error in inductance and value is less than plusmn5%.
['Tackya Yammouch', 'Kenichi Okada', 'Kazuya Masu']
Physical Modeling of MEMS Variable Inductor