Alcatel

Gerd Bohnet

Udo Seewig

An excitation system is indicated for an antenna with a parabolic reflector (1) and a dielectric radiator (3) which is attached to the end of a hollow conductor used to guide electromagnetic waves, and is located in the center of the reflector (1) and has a metallized end face designed as a subreflector. The reflector (1) is designed as a rectangular strip forming a sector antenna which has a parabolic curve in the direction of its long axis (A). The end face of the radiator (3) has four partial faces (8, 9, 10, 11) which form pairs and are arranged with respect to the central axis of the hollow waveguide (2) so that each pair of partial faces extends approximately at a right angle to the other pair of partial faces, the partial faces of each pair being of equal size. The two partial faces (8, 9) extending in the direction of the long axis of reflector (1) are large in relation to the two partial faces (10, 11) extending crosswise thereto.

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Isernhagen, Germany

Gerd Bohnet