Omnidirectional antenna
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorGary R. Hoople
Life of this patent
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Abstract
A thin omnidirectional antenna suitable for mounting and operation flush to ground plane. A flat metal probe is sandwiched between a pair of dielectric vanes which are enclosed in turn by a pair of metallic T-guides within a radiating cavity. The design achieves resonance for efficient radiation within an electrically small cavity.
Claims10
In an antenna of the type having an input channel to receive electromagnetic energy transmitted by a coaxial cable and a cavity having a solid rear wall and having an aperture at its front to allow the radiation of said electromagnetic energy into free space wherein the improvement comprises:
- a. a metallic probe positioned interior to said cavity;
- b. said probe for electrical connection with said coaxial cable;
- c. a first and a second T-guide each made of conductive material;
- and
- d. said first T-guide located between said probe and said aperture and said second T-guide located between said probe and said rear wall.
Dependencies are inferred from the claim text.