RF MEMS switch with increased operational bandwidth

Recently, RF MEMS devices are fabricated and used in wireless and telecommunication applications. Small size, low power consumption, better figure of merit for high RF frequencies and compatibility with semiconductor device fabrication technology are some advantages of this technology. One of the first emerged RF MEMS devices is RF switches. During past two decades several structures and actuation mechanisms have been introduced by researchers and companies. In this paper a new switch design is proposed which consists of two separate bridges with different areas and actuation electrodes. The simulation results show that the proposed switch has wider band width in comparison with conventional switches while isolation and return loss is almost at the same level.