Patent ID: 6211842
Filing Date: 2001-04-03
Classification: H01Q

Abstract:
An antenna comprising a reflector for telecommunication satellite beams having a continuous concave reflecting surface whose equation is deduced from the equation of an offset paraboloid having a focus and an offset angle by adding thereto the equation of a correction surface and which is symmetrical about a focal plane of symmetry of the paraboloid, wherein the equation of the correction surface comprises a second order polynomial in two coordinates relative to axes perpendicular to the axis of symmetry of the paraboloid and a sum of N(2N-1) terms depending in particular on distances between the projection of any point on the reflecting surface onto a plane perpendicular to said focal plane of symmetry and N(2N-1) control points of a grid extending over said perpendicular plane and limited by said focal plane of symmetry, where N is an integer not less than 2.