Frequency Selective Canceller for Enhanced Communications-While-Jamming Capabilities

Metamagnetics proposes to develop a custom frequency selective canceller (FSC) module, based on their proven Auto-tune Filter (AtF) technology, to enable continuous connectivity to the Advanced Tactical Data Networks (ATDN) during jamming missions. The FSC module, which has already been demonstrated in a laboratory environment at these frequencies, automatically and selectivity cancels high-power interferers while minimally impacting lower-power signals of interest. The FSC module is capable of selectively rejecting a threat by >50 dB, whether it is in-band/near-band, modulated, or CW, without the need for a sense antenna or any complicated digital signal processing.  Unlike traditional fixed/tunable notch filters, active beam nulling, and solid-state limiters, the FSC can automatically track threats and adjust its cancelling response in real time, without user input. It can selectively suppress multiple dynamic threats simultaneously that are changing in both power level and frequency, all without affecting signals of interest. The FSC technology is an extension of Metamagnetics’ Auto-tune Filter (AtF) technology which is being transitioned into two major platforms.