Wireless communication between a rotating frame of reference and a non-rotating frame of reference
First Claim
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1. A communication system comprising:
- a first communication module within a rotating frame of reference;
a second communication module within a fixed frame of reference; and
a hollow shaft at least partially within said rotating frame of reference, said first communication module and said second communication module in wireless communication at least partially through said hollow shaft, wherein said hollow shaft is a main rotor shaft of a rotary wing aircraft, said main rotor shaft rotatable about an axis of rotation.
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Abstract
A communication system includes a first communication module within a rotating frame of reference and a second communication module within a fixed frame of reference. The first communication module and the second communication module in wireless communication at least partially through a hollow shaft.
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Citations
12 Claims
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1. A communication system comprising:
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a first communication module within a rotating frame of reference; a second communication module within a fixed frame of reference; and a hollow shaft at least partially within said rotating frame of reference, said first communication module and said second communication module in wireless communication at least partially through said hollow shaft, wherein said hollow shaft is a main rotor shaft of a rotary wing aircraft, said main rotor shaft rotatable about an axis of rotation. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method of wireless communication comprising:
wireless communicating between a rotating frame of reference and a fixed frame of reference at a frequency above a waveguide cutoff frequency defined by a hollow shaft at least partially within the rotating frame of reference, wherein the hollow shaft is a main rotor shaft of a rotary wing aircraft.
Specification