Low power frequency agile filter application for different GPS protocols

Abstract

In this paper, second and fourth order frequency agile filter applications realized with second generation current controlled current conveyor is presented. Encrypted communication, cognitive radio and software defined radio structures use the frequency agile filter structure. These systems background need the reconfigurable frequency receveirs, oscillators or etc. The designed frequency agile filter structure is also applicable to the global positioning systems(GPS, GLONASS, Beidou, GNSS and Galileo) to be processed on a single discrete filter. The performance of the reconfigurable filter is verified in Cadence environment. AMS 0.18μm process paremeters are used for the simulations.