Patent ID: 9312606
Filing Date: 2016-04-12
CPC Classification: H01Q

Claim Text:
1. An antenna device of a single beam scheme, comprising: a reflector configured to form an offset antenna with a portion of a rotational paraboloid being cut out; and a primary radiator configured to radiate a beam having an elliptical cone shape to an aperture plane of the reflector, wherein a contour of the aperture plane of the reflector is formed along an isolux line of the beam having the elliptical cone shape radiated from the primary radiator, wherein: when a contour formed in the aperture plane of the reflector along the isolux line of the beam having an elliptical cone shape radiated from the primary radiator is a first contour, and a virtual elliptical contour formed to be perpendicular to an axis of the beam incident on the aperture plane of the reflector is a second contour, a space in which the first contour protrudes from the second contour is a space which compensates for a loss due to spillover of the reflector.