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US 4,360,816 AGranted
Phased array of six log-periodic dipoles
AssigneeThe United States of America as represented by the Secretary of the Navy
InventorRobert G. Corzine
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Abstract
A direction finding antenna for accurate direction finding over broad conuous frequency spectrums, independently of polarization, comprising a phased array of six log-periodic dipole antennas with loaded elements.
Claims4
A direction finding antenna array comprising;
- six planar log-periodic antennas having at least one edge and an apex;
- the six antennas being physically supported such that a conical surface of revolution coincides with said at least one edge of each of the antennas;
- each antenna comprising a multiplicity of uniformly loaded dipole elements;
- said elements being spaced logarithmically along each antenna;
- each antenna being uniformly tapered from the apex thereof to the widest portion thereof;
- said loading comprising an area equal to .alpha. times .beta. where .alpha.=a constant multiplied by the wavelength of interest and .beta. equals another constant multiplied by the wavelength of interest.
3 more elements
Dependencies are inferred from the claim text.