Microelectromechanical Systems (MEMS) for radio frequency (RF) applications or RF MEMS provides an opportunity to revolutionize the wireless communication. This paper describes the Performance of low loss Fixed-Fixed RF MEMS capacitive switch at higher frequencies. Many researchers focus on RF MEMS capacitive switch, which presents good performance at microwave frequencies. Modelling of RF MEMS devices is essential for design optimization and device reliability. One of the most important RF MEMS components is MEMS switch. A novel approach of designing the RF MEMS switch is presented here to obtain the better performance of the switch at higher frequency ranges from 0.1 to 40 GHz .The RF MEMS capacitive Fixed-Fixed switch exhibit lower losses, better reliability, and good performance at higher frequencies.