Modeling and fast simulation of RF-MEMS switches within standard IC design frameworks

Abstract

We present a macromodel of an electrostatically actuated and viscously damped ohmic contact RF-MEMS switch suitable for direct implementation in standard IC design frameworks. The physics-based and multi-energy domain coupled model is systematically derived on the basis of a hierarchical modeling approach. The very good agreement with measurements proves the capability of the model to predict the behavior of the RF-MEMS switch. Especially effects due to the nonlinear coupling of the different energy domains are correctly reproduced. The accurate reproduction of heavily contact-related situations within acceptable computing time is identified as an issue for future research.