Antijam null steering conformal cylindrical antenna system
AssigneeThe Charles Stark Draper Laboratory, Inc.
InventorsJoseph M. Przyjemski, Jeffrey B. Lozow
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Abstract
An antijam null steering conformal cylindrical antenna system includes a cylindrical array of linearly polarized individually weighted antenna elements; a plurality of weighting circuits one associated with each of the elements; and means, responsive to the power output of the weighting circuit, for decreasing the sensitivity in the direction of the maximum incident power.
Claims9
An antijam null steering conformal cylindrical antenna system comprising:
- a cylindrical array of linearly polarized individually weighted antenna elements capable of being positioned radially about a 5 inch projectile;
- a plurality of weighting circuits one associated with each of said elements;
- and
- a minimization circuit responsive to the power output of said weighting circuits for maintaining a constant reduced sensitivity in the direction of maximum incident power and for increasing the signal to noise ratio between a global position system signal and a jamming signal system while said small projectile is spinning.
The antijam null steering conformal cylindrical antenna system in which said antenna system is a GPS receiver antenna system having a frequency of approximately 1.5 GHz.
Dependencies are inferred from the claim text.