Ortho-mode transducer with TEM probe for coaxial waveguide
AssigneeOptim Microwave, Inc.
InventorsCynthia P. Espino, John P. Mahon
Life of this patent
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Abstract
An ortho-mode transducer may include an annular common waveguide defined by an outside surface of an inner conductor and an inside surface of an outer conductor, the outside surface and the inside surface concentric about a waveguide axis. A first port may couple a first TE11 mode to the annular common waveguide. A second port may couple a second TE11 mode to the annular common waveguide, the second TE11 mode orthogonal to the first TE11 mode. A TEM probe may suppress resonance of a TEM mode within the annular common waveguide.
Claims15
An ortho-mode transducer (OMT), comprising:
- an annular common waveguide defined by an outer surface of an inner conductor and an inner surface of an outer conductor, the outer surface and the inner surface concentric about a waveguide axis
- a first port for coupling a first TE11 mode to the annular common waveguide
- a second port for coupling a second TE11 mode to the annular common waveguide, the second TE11 mode orthogonal to the first TE11 mode
- a TEM probe configured to suppress resonance of a TEM mode within the annular common waveguide, the TEM probe configured to couple TEM energy from the annular common waveguide to a connector external to the annular common waveguide.
An ortho-mode transducer (OMT), comprising:
- an annular common waveguide defined by an outer surface of an inner conductor and an inner surface of an outer conductor, the outer surface and the inner surface concentric about a waveguide axis
- a first port for coupling a first TE11 mode to the annular common waveguide, the first port coupled to the annular common waveguide by a first generally rectangular waveguide having a first plurality of segments configured to be fabricated by machining with an end mill without undercuts or hidden surfaces
- a second port for coupling a second TE11 mode to the annular common waveguide, the second TE11 mode orthogonal to the first TE11 mode
- a TEM probe configured to suppress resonance of a TEM mode within the annular common waveguide.
An ortho-mode transducer (OMT), comprising:
- an annular common waveguide defined by an outer surface of an inner conductor and an inner surface of an outer conductor, the outer surface and the inner surface concentric about a waveguide axis
- a first port for coupling a first TE11 mode to the annular common waveguide
- a first symmetry cavity diametrically opposed to the first port
- a second port for coupling a second TE11 mode to the annular common waveguide, the second TE11 mode orthogonal to the first TE11 mode
- a second symmetry cavity diametrically opposed to the second port
- a TEM probe configured to suppress resonance of a TEM mode within the annular common waveguide, wherein the TEM probe extends into the first symmetry cavity.
Dependencies are inferred from the claim text.