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US 4,366,485 AGranted
Concentric tube antenna encased in dielectric
AssigneeZ.S. Electroniques (Proprietary) Limited
InventorAlec J. Hodgkinson
Life of this patent
Estimating the term…
Abstract
An antenna comprises a conductor having two electrically connected sections spaced apart from each other by a dielectric material, and a directional coupler connected to the feed point, the sections being connected at a position remote from the feed point.
Claims6
An antenna comprising:
- a conductor formed by two tubular sections, one of said tubular sections being of smaller diameter than the other and being located concentrically within the other, the ends of the two tubular sections being electrically connected at one pair of ends thereof remote from the feed point of the antenna, and there being a directional coupler connected to the feed point, the coupler being adapted to have a low attenuation in the direction of feed and a high attenuation of reflected waves in the reverse direction.
Dependencies are inferred from the claim text.