Axisymmetric reflector antenna for radiating axisymmetric modes
AssigneeRaytheon Company
InventorEarl M. Dressel
Life of this patent
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Abstract
A reflector antenna system includes: a concave primary reflector, the concave primary reflector adapted to be illuminated by a sub-reflector and radiate accordingly an axisymmetric beam; a coherent-phase sub-reflector disposed one in front of the primary reflector; and a feed adapted to operate with the TE01 axisymmetric mode and illuminating the said sub-reflector by employment of such. the aperture of the feed disposed to crowd the sub-reflector.
Claims12
A reflector antenna system comprising:
- a concave primary reflector, the concave primary reflector adapted to be illuminated by and radiate an axisymmetrical aperture distribution beam;
- a coherent-phase sub-reflector disposed in front of the primary reflector, wherein the coherent-phase sub-reflector is disposed within one operational wavelength from the primary reflector;
- and
- a feed adapted to operate with an TE01 axisymmetric mode and illuminating the said sub-reflector by employment of such, an aperture of the feed disposed to crowd the sub-reflector.
A method of providing a reflector antenna comprising:
- concave primary reflector, the concave primary reflector adapted to be illuminated by and radiate an axisymmetrical aperture distribution beam;
- providing a coherent-phase sub-reflector disposed in front of the primary reflector, wherein the coherent-phase sub-reflector is disposed within one operational wavelength from the primary reflector;
- and
- providing a feed adapted to operate with an TE01 axisymmetric mode and illuminating the said sub-reflector by employment of such, an aperture of the feed disposed to crowd the sub-reflector.
A reflector antenna system comprising:
- a concave primary reflector, the concave primary reflector adapted to be illuminated by and radiate an axisymmetrical aperture distribution beam;
- a coherent-phase sub-reflector disposed in front of the primary reflector, wherein the coherent-phase sub-reflector is disposed within a half of an operational wavelength from the primary reflector;
- and
- a feed adapted to operate with an TE01 axisymmetric mode and illuminating the said sub-reflector by employment of such, an aperture of the feed disposed to crowd the sub-reflector.
A method of providing a reflector antenna comprising:
- concave primary reflector, the concave primary reflector adapted to be illuminated by and radiate an axisymmetrical aperture distribution beam;
- providing a coherent-phase sub-reflector disposed in front of the primary reflector, wherein the coherent-phase sub-reflector is disposed within a half of an operational wavelength from the primary reflector;
- and
- providing a feed adapted to operate with an TE01 axisymmetric mode and illuminating the said sub-reflector by employment of such, an aperture of the feed disposed to crowd the sub-reflector.
Dependencies are inferred from the claim text.