Communications: radio wave antennas – Antennas – With means for moving directive antenna for scanning,...
Patent
1995-08-01
1998-09-08
Lee, Benny T.
Communications: radio wave antennas
Antennas
With means for moving directive antenna for scanning,...
333261, H01Q 302, H01P 106
Patent
active
058051155
ABSTRACT:
A rotary microwave antenna system suitable for satellite or cellular microwave radio telecommunications features an integrated, low-profile, rotary microwave joint, slip ring and antenna assembly. The rotary antenna system includes a stator (i.e., stationary portion), for attachment to a mobile platform (e.g., an automobile or other vehicle), having a rotary joint coaxial microwave coupler for electrically coupling a microwave transmission line from a microwave telecommunications radio system to a microwave antenna element of an microwave antenna rotatable about an axis relative to the mobile platform. The rotary antenna system also includes a rotor (i.e., rotary portion) for attachment to the microwave antenna. The rotor includes a slip ring circuit (or brushes) for coupling power and low frequency electrical signals to the microwave antenna through contacting brushes (or slip ring) attached to the stator, rotates relative to the stator, and is concentric with the axis of rotation of the microwave antenna. The stator includes a disk having a peripheral edge around its circumference, and the rotor includes an annular ring having an inner edge around a central opening and a peripheral edge around its circumference. The inner edge of the rotor is adjacent to, concentric with, and rotatably coupled to the peripheral edge of the central disk by means of an assembly of ball bearings placed between the two adjacent edges.
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Faulkner David
Lattanzi Ernie
McLaughlin Brian
Pellerin Andrew
Kevlin Corporation
Lee Benny T.
Smith Richard B.
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