Compact bipolarization power splitter, array of a plurality of splitters, compact radiating element and planar antenna comprising such a splitter
AssigneeThales
InventorsHerve Legay, Adrien Cottin, Ronan Sauleau, Patrick Pottier
Life of this patent
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Abstract
A compact dual-polarization planar power splitter comprises at least four asymmetric orthomode transducers (OMTs) connected in an array suitable for being coupled in-phase to a dual orthogonal polarization feed source via two power distributors mounted perpendicularly in relation to one another, each power distributor comprising at least two lateral metal waveguides disposed parallel to one another, and a transverse metal waveguide coupled perpendicularly to the two lateral metal waveguides and four ends of the lateral waveguides coupled respectively to the four asymmetric OMTs.
Claims33
A compact bipolarization planar power splitter comprising:
- at least four transducers to be coupled in-phase to a dual orthogonal polarization feed source and two power distributors respectively dedicated to each polarization of the dual orthogonal polarization source, the at least four transducers being connected in an array via the two power distributors, the two power distributors being mounted parallel to a plane (XY) and oriented perpendicularly in relation to one another,
- wherein each transducer is an asymmetric orthomode transducer (OMT) having two access ports located in the plane XY and oriented orthogonally to one another and a radiating aperture opening out perpendicularly to the plane XY, each power distributor having at least two lateral branches disposed parallel to one another, a transverse branch coupled perpendicularly to the two lateral branches and four ends of the lateral branches coupled respectively in the plane XY to the respective access ports of the four asymmetric OMTs, each lateral and transverse branch including metal waveguides, the transverse branch of each power distributor being coupled to a feed port to be connected to the feed source,
- wherein each waveguide of the splitter includes a rectangular section delimited by four peripheral walls opposed in pairs of different widths, and wherein the waveguides of the transverse branches and of the lateral branches are mounted flat on one of their respective wider peripheral walls parallel to the plane XY.
A compact bipolarization planar power splitter comprising:
- at least four transducers to be coupled in-phase to a dual orthogonal polarization feed source and two power distributors respectively dedicated to each polarization of the dual orthogonal polarization source, the at least four transducers being connected in an array via the two power distributors, the two power distributors being mounted parallel to a plane (XY) and oriented perpendicularly in relation to one another,
- wherein each transducer is an asymmetric orthomode transducer (OMT) having two access ports located in the plane XY and oriented orthogonally to one another and a radiating aperture opening out perpendicularly to the plane XY, each power distributor having at least two lateral branches disposed parallel to one another, a transverse branch coupled perpendicularly to the two lateral branches and four ends of the lateral branches coupled respectively in the plane XY to the respective access ports of the four asymmetric OMTs, each lateral and transverse branch including metal waveguides, the transverse branch of each power distributor being coupled to a feed port to be connected to the feed source,
- wherein each waveguide of the compact bipolarization planar power splitter includes a rectangular section delimited by four peripheral walls opposed in pairs of different widths, wherein the waveguides of the transverse branches are mounted on one of their narrower peripheral walls in such a way that their respective wider peripheral walls are perpendicular to the plane XY, and wherein the waveguides of the lateral branches are mounted flat with their two respective wider peripheral walls parallel to the plane XY.
A compact bipolarization planar power splitter comprising:
- at least four transducers to be coupled in-phase to a dual orthogonal polarization feed source and two power distributors respectively dedicated to each polarization of the dual orthogonal polarization source, the at least four transducers being connected in an array via the two power distributors, the two power distributors being mounted parallel to a plane (XY) and oriented perpendicularly in relation to one another,
- wherein each transducer is an asymmetric orthomode transducer (OMT) having two access ports located in the plane XY and oriented orthogonally to one another and a radiating aperture opening out perpendicularly to the plane XY, each power distributor having at least two lateral branches disposed parallel to one another, a transverse branch coupled perpendicularly to the two lateral branches and four ends of the lateral branches coupled respectively in the plane XY to the respective access ports of the four asymmetric OMTs, each lateral and transverse branch including metal waveguides, the transverse branch of each power distributor being coupled to a feed port to be connected to the feed source,
- wherein the two power distributors are disposed parallel to the plane XY and wherein their transverse branches intersect in an overlap area and are coupled to one another by a T-coupler,
- wherein each waveguide of the compact bipolarization planar power splitter includes a rectangular section delimited by four peripheral walls opposed in pairs of different widths, and wherein the waveguides of the transverse branches and the waveguides of the lateral branches are mounted on one of their respective narrower peripheral walls in such a way that their respective wider peripheral walls are perpendicular to the plane XY.
The compact bipolarization planar power splitter comprising:
- at least four transducers to be coupled in-phase to a dual orthogonal polarization feed source and two power distributors respectively dedicated to each polarization of the dual orthogonal polarization source, the at least four transducers being connected in an array via the two power distributors, the two power distributors being mounted parallel to a plane (XY) and oriented perpendicularly in relation to one another,
- wherein each transducer is an asymmetric orthomode transducer (OMT) having two access ports located in the plane XY and oriented orthogonally to one another and a radiating aperture opening out perpendicularly to the plane XY, each power distributor having at least two lateral branches disposed parallel to one another, a transverse branch coupled perpendicularly to the two lateral branches and four ends of the lateral branches coupled respectively in the plane XY to the respective access ports of the four asymmetric OMTs, each lateral and transverse branch including metal waveguides, the transverse branch of each power distributor being coupled to a feed port to be connected to the feed source,
- wherein the two transverse branches of the two power distributors are respectively mounted in two different planes parallel to the plane XY and located on either side of the plane XY in which the lateral branches of the two power distributors are disposed, each transverse branch being coupled to the lateral branches of the corresponding distributor by a T-coupler in the plane E.
Dependencies are inferred from the claim text.