Dispersed Filament Ceramic Fiber/Polysilazane Composite GPS Antenna Windows(1001-302)

Triton Systems Inc. proposes to develop an ultra-high temperature polymer composite tailored to address the electrical, thermal and mechanical performance required of a high temperature, high stress GPS antenna window. Utilizing a thermoset silicon based polymer originally developed and qualified for Inter-Continental Ballistic Missile (ICBM) antenna windows, two polymer based composite materials will be developed for testing reinforced with quartz (fused silica) fiber and Nextel 610 (alumina) fiber. Composites of both quartz and alumina based preforms will be molded with the silicon polymer and evaluated for GPS frequency transparency, launch load survivability and thermal conductivity. Our prime contractor team partner in this effort is The Charles Stark Draper Laboratory to provide an understanding of the antenna window design and performance requirements and in evaluation of the antenna window materials. Draper is contracted by the Office of Naval Research (ONR) to develop the projectile and guidance system for hyper-velocity applications. Draper will evaluate the candidate antenna window materials for GPS frequency transmissibility and in launch load survivability.