Wide angle phased array fed reflector for radio frequency antennas
AssigneeLockheed Martin Corporation
InventorsElie Germain Tianang, Thomas Henry Hand, Carlos James Romero, Daniel Lloyd Reigh, II
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Abstract
Provided herein are various enhancements for radio frequency antennas and antenna arrangements. In one example, an apparatus comprises a reflector for radio frequency energy having a reflector surface comprising a paraboloid of revolution that establishes an inverted truncated conical shape with a concave nappe. The reflector surface is configured to interact with the radio frequency energy to direct at least a portion of the radio frequency energy towards a feed array mounted about a perimeter of the inverted truncated conical shape.
Claims20
An apparatus, comprising:
- a reflector for radio frequency energy having a reflector surface comprising a paraboloid of revolution that establishes an inverted truncated conical shape with a concave nappe;
- and
- the reflector surface configured to interact with the radio frequency energy to direct at least a portion of the radio frequency energy towards a feed array mounted about a perimeter of the inverted truncated conical shape.
An antenna system, comprising:
- a reflector for radio frequency energy having a reflector surface comprising a paraboloid of revolution that establishes an inverted truncated conical shape with a concave nappe, wherein the inverted truncated conical shape comprises a convex side having the concave parabolic nappe and a concave side comprising an interior cavity;
- a first feed array mounted about a perimeter the inverted truncated conical shape;
- a second feed array positioned in or above the interior cavity on the concave side;
- and
- a structure configured to mount to a base of the reflector and hold at least the first feed array.
A method, comprising:
- forming a reflector for radio frequency energy having a reflector surface comprising a paraboloid of revolution that establishes an inverted truncated conical shape with a concave nappe.
Dependencies are inferred from the claim text.