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US 2024/0145935 A1Published application
Antenna apparatus
AssigneeAgency for Defense Development
InventorsByung Chul PARK, Seung Ho KIM, Kun Sup KWON, Jong Wan HEO, Sung Jae LEE, Ki Min HWANG
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Abstract
An antenna apparatus includes: a parabolic reflector; a dielectric support pedestal; a sub-reflector connected to an upper part of the dielectric support pedestal; and a waveguide connected to a lower part of the dielectric support pedestal, wherein the parabolic reflector has a curved surface in which a ratio of a focal length to a diameter is greater than a preset value, and at least one corrugation configured to suppress a cross polarization is formed in a region of the dielectric support pedestal.
Claims13
An antenna apparatus, comprising:
- a parabolic reflector;
- a dielectric support pedestal;
- a sub-reflector connected to an upper part of the dielectric support pedestal;
- a waveguide connected to a lower part of the dielectric support pedestal, wherein the parabolic reflector has a curved surface in which a ratio of a focal length to a diameter is greater than a preset value, and
- at least one corrugation configured to suppress a cross polarization is formed in a region of the dielectric support pedestal.
2 more elements
Dependencies are inferred from the claim text.