Communications: radio wave antennas – Antennas – Waterborne
Patent
1981-05-01
1983-05-17
Lieberman, Eli
Communications: radio wave antennas
Antennas
Waterborne
343765, H01Q 134, H01Q 308
Patent
active
043842941
ABSTRACT:
A stabilized ship borne antenna arrangement is provided with an antenna which is stabilized against pitching and rolling motions of the ship on which it is mounted. The antenna is intended to rotate in azimuth about a stabilized vertical axis and it is mounted on a rotatable member which rotates about an unstabilized axis, which is fixed relative to the ship. Linear actuators link the antenna to the rotatable member with the lengths of the actuators being adjusted so as to maintain the vertical axis of the antenna as it rotates. The stabilized portion of the antenna arrangement is relatively light with a low center of gravity.
REFERENCES:
patent: 4197548 (1980-04-01), Smith et al.
Coghill Ian
Crook Richard W.
James David R.
Lieberman Eli
The Marconi Company Limited
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