In This Paper, We Report Numerical Modeling With Analytical Verification of Radio Frequency Micro-Electro Mechanical Systems (Rf-Mems) Switch Consisting of Micro Cantilevers Which Are Actuated Electrostatically. During the Micro-Fabrication Process of the Rf-Mems Switch, Various Stresses Are Induced Within the Micro-Structure Thereby Deteriorating Its Static and Dynamic Performance. First Analytical Modelling of Cantilever Micro-Beams Is Presented With Varying Geometrical Parameters. the Important Design Variables Affecting the Rf-Mems Switch Are the Length, Width, and Thickness of Micro-Cantilever Beam With Output As Deflection, Natural Frequency and Quality Factor. After Evaluating Both Analytical and Simulated Results, a Good Conformity Is Found Between Them For the Micro-Cantilever Type of Switch Specimens. the Modelling of Device Performance, Based on the Effects of Device Geometry Would Help In Providing Valuable Insights into Micro-Fabrication Process.