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US 12,537,316 B1Granted
Refraction assisted radio frequency phased array reflector systems
AssigneeLockheed Martin Corporation
InventorsThomas Henry Hand, Joshua David Gustafson, Carlos James Romero, Joseph M. Torres, Elie Germain Tianang
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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, and a lens element. The lens element is configured to alter a distribution of at least a portion of the radio frequency energy reflected by the reflector surface over a detection area of a feed array positioned a selected distance from the lens element.
Claims16
An apparatus, comprising:
- a primary reflector having a primary reflector surface providing a divergent configuration for incident radio frequency energy;
- a secondary reflector having a secondary reflector surface providing a convergent configuration for the radio frequency energy received from the primary reflector surface;
- and
- a lens element configured to diverge a distribution of at least a portion of the radio frequency energy reflected by the secondary reflector surface to increase the distribution of the portion over a detection area of a feed array positioned a selected distance from the lens element.
1 more element
An antenna system, comprising:
- a primary reflector having a primary reflector surface providing a divergent configuration for incident radio frequency energy;
- a secondary reflector having a secondary reflector surface providing a convergent configuration for the radio frequency energy received from the primary reflector surface;
- a refraction element configured to diverge a distribution of at least a portion of the radio frequency energy reflected by the secondary reflector surface to increase the distribution of the portion over a detection area of the feed array;
- and
- a structure configured to mount and axially align at least the primary reflector, the refraction element, and the feed array.
2 more elements
A method, comprising:
- forming a primary reflector having a primary reflector surface providing a divergent configuration for radio frequency energy;
- forming a secondary reflector having a secondary reflector surface providing a convergent configuration for the radio frequency energy received from the primary reflector surface;
- positioning a lens element such that at least a portion of incident radio frequency energy reflected by the secondary reflector surface has a diverged distribution over a more distributed detection area of a feed array positioned a selected distance from the lens element.
Dependencies are inferred from the claim text.