Miniature GPS Antenna System

Current anti Jam GPS antennas are approximately 14" in diameter making them too large for several platforms of interest such as unmanned aerial vehicles, missiles and fighter aircrafts. A modified version of this antenna array is significantly smaller in size (seven inch diameter) but incorporates only 4 antenna elements, thus, limiting its nulling capabilities under severe jamming conditions. To alleviate these limitations, Applied EM is proposing a miniature GPS antenna that would allow for anti-jamming capability (with 5 to 7 elements) to acquire accurate PVT (Position, Velocity and Time) in a hostile RFI (Radio Frequency Interference) environment. This will improve GPS reliability for situation awareness in battlefield scenarios and will further make GPS a viable solution for precision approach and landing. A second focus of our proposal is to enhance the antenna electronics using -time adaptive processing (STAP) or space-frequency adaptive processing (SFAP) with optimum performance.