Patent ID: 6466172
Filing Date: 2002-10-15
Classification: H01Q

Abstract:
A microstrip antenna system for use on a small diameter projectile comprising:a ground plane mounted on an outer circumference of said small diameter projectile; a dielectric substrate mounted on said ground plane; a microstrip telemetry antenna spaced apart from and electrically separated from said ground plane by said dielectric substrate, said microstrip telemetry antenna transmitting a first RF signal; a microstrip GPS (Global Positioning System) antenna mounted on said dielectric substrate in proximity to said microstrip telemetry antenna, said microstrip GPS antenna spaced apart from and electrically separated from said ground plane by said dielectric substrate, said microstrip GPS antenna receiving a second RF signal; and a band stop filter integrally formed with said microstrip GPS antenna on said dielectric substrate, said band stop filter providing for a minimum stop-band rejection of approximately 40 decibels to isolate the first RF signal transmitted by said microstrip telemetry antenna from the second RF signal received by said microstrip GPS antenna.