US 5,708,447 AGranted

Antenna having a parabolic reflector

AssigneeAlcatel Kabel AG & Co.

InventorsMichael Kammer, Hans-Peter Quade, Karl Heinz Reimann

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Abstract

An antenna includes a parabolic reflector and a supply line attached thereto. The supply line includes two rectangular electromagnetic (waveguides) that are essentially parallel to each other. A tube-shaped exciter is common to the (waveguides) and is located at open ends of the waveguides. A back side of the reflector has a mechanically stable receptacle, which is used to attach the reflector to a support. The receptacle includes a metal ring with an L-shaped cross section in an opening that corresponds to a central opening in the reflector. The ring has a cylindrical area and, at a right angle to the cylindrical area, a base area that extends toward the inside of the ring. In the installed position, the cylindrical area of the ring penetrates and is centered in the opening of the reflector. A holding plate, which firmly surrounds and supports both waveguides, fits precisely into the ring and is attached to the ring in removable form when mounted.

Claims20

Dependent claims

An antenna comprising:

a parabolic reflector having a central opening;
a supply line attached to said parabolic reflector, said supply line including two rectangular, essentially parallel electromagnetic waveguides and a tube-shaped exciter affixed to open ends of both waveguides;
a holding plate located in said central opening of said reflector, said holding plate securely surrounding and supporting both of said waveguides for attachment to said parabolic reflector;
a mechanically stable receptacle mounted on a back side of said reflector, said receptacle being used to attach the reflector to a support, said receptacle having an opening corresponding to said reflector central opening;
a metal ring having an L-shaped cross section affixed to said receptacle opening, said ring having a cylindrical area and a base area at right angles with respect to one another, said base area pointing to the inside of the ring, said receptacle and said ring being positioned within said reflector central opening such that said ring is centered in said reflector central opening;
and
wherein said holding plate fits precisely into the said ring for thereby locating said holding plate in said central opening of said reflector and wherein said holding plate can be removed from said ring.

4 more elements

Dependencies are inferred from the claim text.