A novel mems charge-pump circuit

This paper presents a novel MEMS charge-pump circuit design and simulation for PLL applications. The proposed circuit increases switching speed, minimizes power consumption and reduces the static Charge and Charge injection cancellation. The Advanced Design System (ADS), from Agilent Technologies are used in the proposed structure for high frequency applications. The use of electrostatic MEMS switches is attractive because of its advantages, such as very low power consumption, low insertion loss and high isolation. This paper introduces a use of special design MEMS as a charge pump circuit, replacing the GaAs FET switch with MEMS switch. The proposed charge pump circuit can generate higher output voltage with 66.3% improvement when compared with the charge pump using MOS devices.