SBIR-STTR Award

The RF Absorptive Filter (RAF) is a high power, low loss, absorptive band reject filter designed to enable Blue Force communications to occur simultaneously with CREW Systems. RAF is capable of installation at the output of an RCIED jammer to maximize noise rejection due to its high power handling and absorptive properties. RAF is compatible with both fixed frequency and frequency hopping Blue Force communications.

Benefit:
RAF can enable interoperability between CREW Systems and Blue Force communications for military vehicles, man portable systems, VIP escorts, and Homeland Security personnel.

Keywords:
band reject filter, band reject filter, Blue Force communication interoperability, CREW interoperability, Co-site Interference, Notch Filter, band stop filter

This phase II effort will build upon the feasibility demonstration of phase I. We will build an electrically tunable absorptive notch filter to enable CREW and Blue Force Communications. Two designs will be built, covering the 225-500MHz and 1350-1850MHz bands.

Keywords:
Reflectionless Filter, Reflectionless Filter, Co-Site Interference, Band Reject Filter, Band Stop Filter, Blue Force Communications, Notch Filter, Tunable Filter, Absorptive F