Communications: radio wave antennas – Antennas – Antenna components
Patent
1988-01-25
1991-07-16
Ullah, Akm
Communications: radio wave antennas
Antennas
Antenna components
H01Q 1514
Patent
active
050328476
ABSTRACT:
A pair of reflector "skins" which are typically thin metal sheets of the order of five feet by eight feet are placed side by side on the bed of a fixture, this bed having a predetermined size and a contour which is typically parabolic. Longitudinal rib members having a "Z" cross section and the same contour as the bed are placed in the fixture on top of the sheets in spaced relationship to each other and running along the longitudinal extent of the sheets. These ribs are secured in position by means of clamps which press the ribs securely against the sheets so that the entire surfaces thereof are held in mating engagement with the fixture bed so that they assume the contour thereof. The ends of the "Z" cross section ribs are secured to each other by means of gussets and clips. The runners of the ribs which abut against the sheets have a series of small holes spaced therealong. With the sheets thus tightly held in abutment against the bed of the tray fixture, the sheets and the ribs are welded together by means of welds made at each of the holes in the ribs. The structure is completed by welding stabilizing members laterally between the ribs.
REFERENCES:
patent: 3234550 (1966-02-01), Thomas
Hoagg, Jr. James W.
Knief Richard D.
Kucharski Thaddeus
Datron Antennas, Inc.
Sokolski Edward A.
Ullah Akm
Wise Robert E.
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