Parabolic antenna

Details Parabolic antenna Parabolic antenna

1996-07-19

1998-02-03

Wimer, Michael C.

Communications: radio wave antennas

Antennas

With means for moving directive antenna for scanning,...

343839, 343840, H01Q 316

Patent

active

057149607

ABSTRACT:
A parabolic antenna includes a reflector, a feed horn positioned at a focal point of the reflector, a frame fixed on a rear side of the reflector at one end, an arm on one end of which the feed horn is fixed, a pair of hinges, a boss and a shaft. The hinges extend from the other end of the arm and spaced apart from each other, and the boss extends from the other end of the frame and is interposed between the hinges. The shaft is fitted through one hinge and into the boss and the other hinge. The parabolic antenna is further provided with at least one ball stopper having a ball and a spring. The ball stopper is inserted in a blind hole formed on an inner surface of each hinge, and the spring presses the ball against the boss so that the ball is fitted into one of the recesses, thereby holding the arm and the frame at a desired angle.

REFERENCES:
patent: 3076964 (1963-02-01), Reinhold
patent: 3747113 (1973-07-01), De Vellis
patent: 4862190 (1989-08-01), Palmer et al.
patent: 4998114 (1991-03-01), Eto et al.

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