High power positional fixture for a multi-polarized antenna
AssigneeBAE Systems Information and Electronic Systems Integration Inc.
InventorWalter A Bohlman
Life of this patent
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Abstract
A compact fixturing means is disclosed that delivers two or more phase tracked channels of high power (e.g., 1000 Watts) to an antenna that can produce a multiplicity of polarization depending on the phase relationship of the delivered signals. Coaxial cables are used as a service loop to provide two or more channels of phase tracking and high power signals to the multi-polarized antenna. A flat spiral spring is configured within the fixture to the guide two (or more) coaxial cables along a spiral loop to allow approximately equal tension on the cables as the fixture is rotated. The flat spiral spring is operatively coupled to a rotation plate and progresses form an inner radius proximate the fixture input to an outer radius proximate the fixture output.
Claims20
A high power positional fixture for a multi-polarized antenna, comprising:
- a stationary plate;
- a rotation plate having a top side and a bottom side;
- a positional motor operatively coupled between the stationary plate and the bottom side of the rotation plate, and configured for rotating the rotation plate through a range of rotation;
- a flat spiral spring that is operatively coupled to the bottom side of the rotation plate and configured with one or more turns progressing from an outer radius to an inner radius;
- and
- a dual coax cable loosely coupled to a path substantially defined by the flat spiral spring, thereby enabling delivery of two phase tracked channels of high power to a multi-polarized antenna operatively coupled to the fixture.
A high power positional fixture for a multi-polarized antenna, comprising:
- a rotation plate having a top side and a bottom side;
- a flat spiral spring that is operatively coupled to the bottom side of the rotation plate and configured with one or more turns progressing from an outer radius to an inner radius;
- and
- two or more coax cables each loosely coupled to a path substantially defined by the flat spiral spring, thereby enabling delivery of two or more phase tracked channels of high power to a multi-polarized antenna operatively coupled to the fixture.
A high power multi-polarized antenna system comprising:
- a stationary plate;
- a rotation plate having a top side and a bottom side;
- a multi-polarized antenna fastened to the top side of the rotation plate;
- a positional motor operatively coupled between the stationary plate and the bottom side of the rotation plate, and configured for rotating the rotation plate through a range of rotation;
- a flat spiral spring that is operatively coupled to the bottom side of the rotation plate and configured with one or more turns progressing from an outer radius to an inner radius;
- a feed circuit and amplifier for providing phase tracking and high power signals;
- and
- two or more coax cables each loosely coupled to a path substantially defined by the flat spiral spring, for delivering the phase tracking and high power signals from the feed circuit and amplifier to the multi-polarized antenna.
Dependencies are inferred from the claim text.