This SBIR Phase 1 project shall investigate novel radar absorbing materials (RAM) for use in space or simulated space environments. These materials are lightweight composites having novel fiber architecture, enabling a combination of performance characteristics not available with conventional RAM: high broadband absorption, lightweight, low outgassing, low contamination, and high power capability. The fiber materials potentially serve a functional role in composite radar absorbing structures. Phase 1 will gather performance requirements and assess the potential benefits compared with current baseline materials. Selected fiber configurations will be prepared and characterized.