High-Efficiency Wideband, Linear RF Amplifier for Naval Communications

The CEI Team proposes to develop a resilient, wide band linear RF amplifier (4-8 GHz) architecture incorporating a custom GaN front end. This front end will be equipped with adaptive circuits to combat jamming attacks including an active interference filter. This circuitry will be automatically controlled by algorithms implemented in the digital back end which are based on digital signal processing after a high-performance analog to digital conversion. Digital and analog filtering techniques will be combined to obtain a highly linear, interference-hardened RF transmitter with high data rate capability that offers an alternative in satellite communication denied military environments.