Dish antenna and method for making

Details Dish antenna and method for making Dish antenna and method for making

1980-11-24

1982-10-19

Moore, David K.

Communications: radio wave antennas

Antennas

Antenna with parasitic reflector

343912, H01Q 1912

Patent

active

043553176

ABSTRACT:
A lightweight inexpensive fiberglass antenna dish is disclosed, as well as a method for the manufacture thereof. The dish may be formed by spraying chopped fiberglass and epoxy binder onto the glazed surface of a parabolic mold. An aperture formed on the focal axis of the antenna dish, either at the time of molding or at a later time, accommodates a heavy wall structural tube which extends along the focal axis half-way towards the focal point and which is secured to the dish. Rods secured between the dish surface and the distal end of the tube form triangular shapes in cross-section which rigidify the dish element. The feed unit, such as a horn, is attached to the distal end of the tube and the transmission lines therefore can pass through the tube itself.

REFERENCES:
patent: 2072262 (1937-03-01), Herzog et al.
patent: 2786998 (1957-03-01), Davis
patent: 2945233 (1960-07-01), Wild et al.
patent: 3397399 (1968-04-01), Carman et al.
patent: 3599218 (1971-08-01), Williamson
patent: 4001836 (1977-01-01), Archer et al.
patent: 4274099 (1981-06-01), Downs

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