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US 6,098,547 AGranted
Artillery fuse circumferential slot antenna for positioning and telemetry
AssigneeRockwell Collins, Inc.
InventorJames B. West
Life of this patent
Estimating the term…
Abstract
An antenna for utilization in a fuse of an artillery shell or the like. The antenna includes a dielectric disk having upper and lower surfaces, a radiator disposed on the upper surface of the dielectric disk, a ground plane disposed on the lower surface of said dielectric disk, and a plurality of spaced apart apertures radially disposed through the dielectric disk for coupling the radiator to the ground plane.
Claims26
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;
- and
- a 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.
2 more elements
A fuse, comprising:
- an outer shell having an interior portion and a base;
- and
- an antenna disposed within the interior portion of said outer shell generally parallel to said base, said 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, and a plurality of apertures being spaced apart and radially disposed through said dielectric disk for coupling said first and second ground planes, said antenna providing a desired radiation property including a lower gain in a forward direction with respect to a longitudinal axis of the fuse, and a higher gain in an aft direction with respect to the longitudinal axis of the fuse, 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 fuse.
Dependencies are inferred from the claim text.