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US 5,963,176 AGranted
Antenna system with edge treatment means for diminishing antenna transmitting and receiving diffraction, sidelobes, and clutter
AssigneeThe United States as represented by the Secretary of Commerce
InventorsFrederick Solheim, James Jordan, John Wilson
Life of this patent
Estimating the term…
Abstract
An antenna shroud or clutter fence has edge treatment for redirecting or absorbing energy which would otherwise be diffracted in an undesired direction. The edge treatment can include an array of corrugations which are about .lambda./4 deep for scattering sidelobes. The array of corrugations can be parallel to either the E-wave component or the H-wave component. Alternatively, the edge treatment can include an array of antennas encased in a dielectric extension.
Claims16
An antenna system comprising:
- an antenna for emitting or receiving radiation with an E-wave component and an H-wave component;
- an antenna shroud or clutter fence surrounding the antenna;
- and
- edge treatment means on the antenna shroud or clutter fence, the edge treatment means comprising an array of corrugations for scattering portions of the radiation.
1 more element
An antenna system comprising:
- an antenna for emitting or receiving radiation;
- an antenna shroud or clutter fence surrounding the antenna;
- and
- edge treatment means on the antenna shroud or clutter fence, the edge treatment means comprising an array of further antennas for scattering portions of the radiation.
1 more element
Dependencies are inferred from the claim text.