Coaxial-waveguide rotary coupling assemblage
First Claim
1. A coaxial-waveguide assemblage, comprising:
- a first coaxial transmission line having a first inner and a first outer conductor;
a waveguide, electromagnetically coupled to said first coaxial transmission line, said waveguide having an inner surface bounding a signal propagation space;
a second coaxial transmission line electromagnetically coupled to said waveguide, said second coaxial transmission line having a second inner and a second outer conductor and being disposed to rotate about a first vertical axis; and
said signal propagation space extending between said first and second coaxial transmission lines.
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Accused Products
Abstract
A coaxial-waveguide assemblage is disclosed herein of the invention includes a first coaxial transmission line having a first inner and a first outer conductor. The inventive assemblage further includes a waveguide electromagnetically coupled to the first coaxial transmission line, where an inner surface of the waveguide bounds a signal propagation space. The waveguide is also electromagnetically coupled to a second coaxial transmission having a second inner and a second outer conductor. The inner conductor of the second coaxial transmission line is disposed to rotate about a first vertical axis, thereby enabling the second coaxial transmission line to be connected to a rotating antenna. In a particular implementation the coaxial-waveguide assemblage is disposed within a rotary joint operative to couple electromagnetic energy between first and second signal ports. An axially elongated dielectric sleeve, disposed about the second inner conductor, will preferably be dimensioned to extend into the waveguide propagation space. The rotary joint will generally include a bearing arrangement interposed between the second outer conductor and the axially elongated dielectric sleeve of the second coaxial transmission line. Tuning of the coaxial-waveguide assemblage is facilitated by a tuning cavity in communication with the propagation space.
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Citations
19 Claims
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1. A coaxial-waveguide assemblage, comprising:
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a first coaxial transmission line having a first inner and a first outer conductor; a waveguide, electromagnetically coupled to said first coaxial transmission line, said waveguide having an inner surface bounding a signal propagation space; a second coaxial transmission line electromagnetically coupled to said waveguide, said second coaxial transmission line having a second inner and a second outer conductor and being disposed to rotate about a first vertical axis; and said signal propagation space extending between said first and second coaxial transmission lines. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A coaxial-waveguide rotary joint assemblage for coupling electromagnetic energy between first and second signal ports, comprising:
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a first coaxial transmission line connected to said first signal port, said first coaxial transmission line having a first inner and a first outer conductor; a waveguide, electromagnetically coupled to said first coaxial transmission line, said waveguide having an inner surface defining a first ridge of a first height and a second ridge of a second height; a second coaxial transmission line connected to said second signal port and rotatable about a vertical axis relative to said first transmission line, said second coaxial transmission line being electromagnetically coupled to said waveguide, said second coaxial transmission line having a second inner and a second outer conductor; and a bearing arrangement, interposed between said second outer conductor and said first outer conductor, for facilitating rotation of said second coaxial transmission line about said vertical axis. - View Dependent Claims (16, 17, 18, 19)
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Specification