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US 4,287,497 AGranted
Integrated universal RF joint and gimbal system
AssigneeMotorola, Inc.
InventorRobert A. Johnson
Life of this patent
Estimating the term…
Abstract
A compact gimbal system having an integral radio frequency signal path therethrough wherein common bearings are utilized in the rotary joints of the radio frequency path and for supporting and rotating the gimballed load and wherein radio frequency waveguide may be used as at least a part of the required structure of the system.
Claims10
An integral universal joint for transmission of radio frequency energy comprising in combination:
- a first rotary radio frequency joint;
- a second rotary radio frequency joint;
- and
- a coaxial transmission line, said first and second rotary radio frequency joints each having a rotational axis, each of said axes being substantially orthogonal to the other, said coaxial transmission line having two ends thereof, each of said ends having a radio frequency transition to a waveguide of one of said first and second rotary radio frequency joints wherein one of said waveguides is a first terminal of the universal joint and a second of said waveguides is a second terminal of the universal joint.
1 more element
A combination radio frequency universal joint and gimbal system comprising in combination;
- a first rotary radio frequency joint;
- a second rotary joint, said first rotary radio frequency joint and said second rotary joint being on a first common rotational axis;
- a third rotary radio frequency joint;
- a fourth rotary joint said third rotary radio frequency joint and said fourth rotary joint being on a second common rotational axis, said second common axis being substantially orthogonal to said first common axis;
- and
- at least one transmission means for joining at least said first and third rotary radio frequency joints and for allowing radio frequency energy transmissions to take place through the universal joint and gimbal system.
3 more elements
Dependencies are inferred from the claim text.