Patent ID: 6098547
Filing Date: 2000-08-08
Classification: F42B,F42C,H01Q

Abstract:
An antenna, comprising:a dielectric disk having upper and lower surfaces;a first ground plane disposed on the upper surface of said dielectric disk;a second ground plane disposed on the lower surface of said dielectric disk; anda plurality of apertures being spaced apart and radially disposed through said dielectric disk for coupling said first and second ground planes, said first and second ground planes each having a predetermined diameter wherein said plurality of apertures are selected according to the predetermined diameters of said first and second ground planes to provide a desired radiation property of the antenna such that the antenna is capable of being optimized for utilization in a projectile, the desired radiation property including a lower gain in a forward direction with respect to a direction of flight of the projectile, and a higher gain in an aft direction with respect to the direction of flight of the projectile, the desired radiation property being generated at least in part by current conducted by either one of said first and second ground planes being caused to flow on a surface of the projectile.