Patent ID: 8648769

Claim:
An antenna base comprising a support body ( 2 ) having a longitudinal axis ( 3 )and, in turn, comprising a fixed lower portion ( 4 ) and an upper portion ( 5 ) aligned to one another along the longitudinal axis ( 3 ), the upper portion ( 5 ) being designed to support an antenna ( 6 ) and being mounted on the lower portion ( 4 ) to rotate, during operation, together with the antenna ( 6 ), about the longitudinal axis ( 3 ); the antenna base ( 1 ) further comprising actuator means ( 7 ), which are configured to rotate the upper portion ( 5 ) and comprise an electric motor ( 56 ) having a stator ( 57 ) rigidly connected to the lower portion ( 4 ), and a rotor ( 58 ) rigidly connected to the upper portion ( 5 ) and coaxial to the longitudinal axis ( 3 ); the antenna base ( 1 ) being characterized in that the lower portion ( 4 ) comprises a tubular body ( 66 ) having an inner cylindrical cavity ( 67 ), which is coaxial to the longitudinal axis ( 3 ) and has an opening at its lower axial end; the upper portion ( 5 ) being mounted on the lower portion ( 4 ) with the interposition of at least a radial bearing ( 72 ; 73 ), which is mounted within said cavity ( 67 ), is coaxial to the longitudinal axis ( 3 ) and comprises an inner ring ( 76 ) rigidly connected to the upper portion ( 5 ), and an outer ring ( 75 ) rigidly connected to the lower portion ( 4 ).