Communications: radio wave antennas – Antennas – With support for antenna – reflector or director
Patent
1987-07-13
1989-09-19
Sikes, William L.
Communications: radio wave antennas
Antennas
With support for antenna, reflector or director
343878, 343880, 343881, H01Q 127, H01Q 308
Patent
active
048685780
ABSTRACT:
A portable reflector antenna assembly which is readily assemblable and disassemblable for use in the field has a triangular base frame employing three beam members which are joined together at their ends with hinge type knuckles which are slidably positioned on three legs. The legs have integral cup shaped pads near the bottom ends thereof and are driven into the ground until the cups abut against the ground to provide lateral and vertical support in the soil. The frame can be adjusted on the legs for both height and leveling by virtue of the slidable movement of each of the knuckles along the legs, and when in the desired position are clamped to the legs by means of lever-cam actuated draw bolts. The reflector member of the antenna is supported along its rim by means of pivotal supports and clamps, the bottom edge of the antenna being slidably adjustable in azimuth along the curved front beam member of the frame and clamped to the front beam member by means of clamping members. The top edge of the reflector member is supported for slidable adjustment in elevation along a shaft which is pivotally supported on a rear leg and which rises upwardly from said leg. The reflector, after having been adjusted in elevation along the shaft, is clamped to the shaft in the desired elevation position. A compass and levels are provided for leveling and adjusting the triangular frame in azimuth, an azimuth scale being provided on the curved beam and an elevation scale on the shaft to facilitate the positioning of the antenna in desired azimuth and elevation positions.
REFERENCES:
patent: 4404565 (1983-09-01), Gurney et al.
patent: 4656486 (1987-04-01), Turner
Bruinsma Robert F.
Thomas Delmer L.
Holloway B. R. R.
Sikes William L.
Sokolski Edward A.
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