VHF satellite based radar antenna array
AssigneeUnited States of America
InventorFrederick Fine
Life of this patent
Estimating the term…
Abstract
A space based radar antenna array is provided which includes a loop antenna, a narrow cylindrical central support column, and an erectable support structure for connecting the support column to the loop antenna. The loop antenna, the support column and the support structure together form a generally umbrella-like apparatus which is erected to deploy the antenna. When deployed, the loop antenna assumes a circular shape oriented in surrounding relation to the central support column. In the non-deployed state, the loop antenna is collapsed adjacent to the support column. The loop antenna comprises a plurality of printed circuit, end-fire YAGI-UDA antenna units.
Claims3
A spaced based radar antenna array comprising,
- a loop antenna;
- a support column having first and second ends;
- connecting means, including a plurality of support boom assemblies, for connecting said first end of said support column to said loop antenna;
- and
- means for providing movement of said boom assemblies between a first position wherein said boom assemblies extend substantially parallel to said support column such that said loop antenna is disposed in a collapsed state in the vicinity of the support column, and a second position wherein said boom assemblies extend outwardly substantially perpendicular to said support column such that said loop antenna is fully deployed in a circular configuration.
Dependencies are inferred from the claim text.