Non-Planar GPS Receiving Antenna Navy STTR FY2005 Sol No.: Navy STTR FY2005 Topic No.: N05-T002 Topic Title: Non-Planar GPS Receiving Antenna Proposal No.: N054-002-0441 Firm: JEM Engineering, LLC 8683 Cherry Lane Laurel, Maryland 20707 Contact: Derek Linden Phone: (301) 317-1070 Web Site: http://www.jemengineering.com Abstract: Research is proposed into the use of non-planar geometries for anti-jam GPS receiving antennas. The global positioning system (GPS) is an essential tool for military navigation. Unfortunately, GPS receivers are vulnerable to jamming, which can severely degrade performance, resulting in a need for anti-jam technologies to protect GPS receiving systems. Concept feasibility will be assessed by modeling and evaluating Combined Radiation Pattern Antennas (CRPAs) with cylindrical and spherical geometries, and comparing the null-forming performance of these antennas to a planar baseline antenna. Benefits: This program will provide the Navy with technology and methods to improve the anti-jam performance of GPS receiving systems, while also improving the ease of integration of CRPA antennas into Navy tactical aircraft. This program is also anticipated to generate at least two different commercialization opportunities, including 1) antenna development for specific military applications, and 2) improved adaptive antennas for commercial communications applications. Return