Miniaturized GPS Antenna Array Technology and Predicted Anti-Jam Performance

Dale Reynolds, Alison Brown, Al Reynolds

Abstract:	NAVSYS has developed a miniaturized GPS antenna array technology that reduces the size of the antenna elements and the array dimensions. This technology enables GPS controlled reception pattern antenna arrays (CRPAs) with anti-jamming capability to be installed on vehicles where their size has previously prohibited their use. This includes aircraft where size and weight constraints resulted in fixed reception pattern antenna (FRPA) installations instead of CRPAs and munitions where space and surface area are at a premium. BOEING has developed AGHAST™ (Another GPS High Anti-jam Simulation Tool), which allows the anti-jam performance of CRPAs and their null-steering electronics to be predicted. Using detailed antenna pattern and coupling data collected in the instrumented anechoic chamber at Boeing, AGHAST™ can accurately predict the expected installed performance of anti-jam hardware in a jamming environment. In this paper, the miniaturized antenna array technology is described, along with test results and an AGHAST™ evaluation of the mini-array anti-jam performance.
Published in:	Proceedings of the 12th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1999) September 14 - 17, 1999 Nashville, TN
Pages:	777 - 786
Cite this article:	Reynolds, Dale, Brown, Alison, Reynolds, Al, "Miniaturized GPS Antenna Array Technology and Predicted Anti-Jam Performance," Proceedings of the 12th International Technical Meeting of the Satellite Division of The Institute of Navigation (ION GPS 1999), Nashville, TN, September 1999, pp. 777-786.
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