Gimbal assembly for monopulse radar antenna

Claim 1

A tripartite gimbal assembly for a gyroscopically stabilized monopulse antenna installed in a moving vehicle having a longitudinal axis, such assembly comprising: (a) an innermost section affixed to the moving vehicle, such section including a spherical bearing centered at a point on the longitudinal axis of such vehicle; (b) a central section, generally annular in shape, having an inner surface matching the spherical bearing; (c) an outermost section rotatably mounted on the central section; (d) means for rotating the outermost section to gyroscopically stabilize such section and the central section; (e) means for precessing the outermost section thereby to gimbal the central section on the innermost section; (f) means, connected between the moving vehicle and the central section, for preventing rotation of the central section and for allowing such section to gimbal on the innermost section; and (g) means for mounting a reflector for the monopulse antenna on the central section.