Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Patent
1995-12-05
1998-01-13
Le, Hoanganh T.
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
343912, 333254, H01Q 1912
Patent
active
057084475
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.
REFERENCES:
patent: 5508712 (1996-04-01), Tom et al.
Kammer Michael
Quade Hans-Peter
Reimann Karl Heinz
Alcatel Kabel AG & Co.
Le Hoanganh T.
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