Low-profile X-Y antenna pedestal utilizing multi-hinge points to

Details Low-profile X-Y antenna pedestal utilizing multi-hinge points to Low-profile X-Y antenna pedestal utilizing multi-hinge points to

1978-03-31

1980-09-30

Lieberman, Eli

Communications: radio wave antennas

Antennas

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

248396, H01Q 303

Patent

active

042258685

ABSTRACT:
An antenna pedestal for producing angular motion is formed of a base and upper and lower subassemblies. Pivot arrangements are provided between the base and the lower subassembly for enabling the lower subassembly to be angularly displaced with respect to the base about a pair of parallel axes by a pair of linear actuators which are connected between the base and the lower subassembly. The first of these actuators rotates the lower pedestal through a first arc sector and the other rotates the lower subassembly in a second arc sector which is in a common plane with the first arc sector. Likewise, the upper subassembly is supported on the lower subassembly with pivot arrangements located therebetween for enabling the upper subassembly to be angularly displaced with respect to the lower subassembly about a further pair of parallel axes which are orthogonal with the pair of axes about which the lower subassembly is displaced relative to the base. Further linear actuators are connected between the upper and lower subassemblies for providing the displacement of the upper subassembly through third and fourth sector, respectively, in a plane which is orthogonal with respect to the plane of the first and second arc sectors.

REFERENCES:
patent: 3215391 (1965-11-01), Storm
patent: 3263232 (1966-07-01), Burwell et al.
patent: 3374977 (1968-03-01), Moy

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