Abstract: A radiofrequency module includes a first layer having an array of radiant elements, each radiant element having a cross section supporting at least one wave propagation mode, a second layer forming an array of waveguides, each waveguide being connected to one radiant element of the first layer; one or more of the waveguides of the array of waveguides having at least one phase-adjustment element for eliminating or correcting the phase shift of the waveguides with respect to each other at a nominal waveguide frequency.

Abstract: Radio-frequency component including several waveguide devices, for example antennas or polarizers, arranged in an array for transmitting and/or receiving electromagnetic signals. The radio-frequency component includes several ridges and each waveguide device includes: at least one inner wall; an upstream opening in the direction of propagation of the signals during emission; and a downstream opening in the direction of propagation of the emitting signals, linked to the upstream opening so that the emitting signals are transmitted from the upstream opening to the downstream opening. The arrangement of the ridges in the openings upstream of the radiofrequency component may be different from the arrangement of the ridges in the openings downstream of the radio-frequency component. The arrangement of ridges in the downstream openings of each waveguide device includes no more and no less than three ridges.

Abstract: Radio-frequency component including several waveguide devices, for example antennas or polarizers, arranged in an array for transmitting and/or receiving electromagnetic signals. The radio-frequency component includes several ridges and each waveguide device includes: at least one inner wall; an upstream opening in the direction of propagation of the signals during emission; and a downstream opening in the direction of propagation of the emitting signals, linked to the upstream opening so that the emitting signals are transmitted from the upstream opening to the downstream opening. The arrangement of the ridges in the openings upstream of the radiofrequency component may be different from the arrangement of the ridges in the openings downstream of the radio-frequency component. The arrangement of ridges in the downstream openings of each waveguide device includes no more and no less than three ridges.

Abstract: A corrugated passive radiofrequency device, in particular a waveguide or horn-type antenna. The device includes a core including at least one inner face delimiting a channel for filtering and guiding waves. The at least one internal face of the channel includes a plurality of cavities or grooves. Each cavity or groove is formed by substantially parallel adjacent walls to filter the waves passing through the channel. The adjacent walls are inclined with respect to the central axis of the channel.

Abstract: Radio frequency device including at least: a tube through which a channel passes, a front face and/or a rear face forming a bearing surface through which the channel passes, the bearing surface forming an annular frame around one end of the tube and being integral with the tube. The bearing surface includes axial fixing apertures passing through the bearing surface and opening outside the channel in order to allow fixation of the device, and the width of the frame being greater at and in the immediate vicinity of the axial fixing apertures than at a distance from these axial fixing apertures.

Abstract: Radiofrequency module, including: a first layer including an array of radiating elements, each radiating element having a cross section for supporting at least one wave propagation mode, a second layer forming an array of waveguides; a fourth layer forming an array of ports; the second layer being interposed between the first and the fourth layer; each waveguide being connected to a port on the one hand and to a radiating element on the other hand for transmitting a radiofrequency signal between this port and this radiating element; the spacing between two ports being different from the spacing between the radiating elements, so that the surface area of the first layer is different from the surface area of the fourth layer; the waveguides being curved.

Abstract: Radiofrequency module, including: a first layer including an array of radiating elements, each radiating element having a cross section for supporting at least one wave propagation mode, a second layer forming an array of waveguides; a fourth layer forming an array of ports; the second layer being interposed between the first and the fourth layer; each waveguide being connected to a port on the one hand and to a radiating element on the other hand for transmitting a radiofrequency signal between this port and this radiating element; the spacing between two ports being different from the spacing between the radiating elements, so that the surface area of the first layer is different from the surface area of the fourth layer; the waveguides being curved.

Abstract: A waveguide filter having a core including an external face and internal faces defining a channel for filtering and guiding the waves. The channel includes several slots, each having a first and a second face. The first face is inclined in relation to the second face. A method for manufacturing the waveguide filter.

Abstract: An orthomode transducer including a first Boifot junction and a second Boifot junction. Each of the first and second Boifot junctions includes a dual polarized port, a first lateral port, a second lateral port, the first and second lateral port being single polarized, and a third single polarized port along the propagation direction of a signal in the dual polarized port. A first power divider for coupling the first lateral port of the first Boifot junction with the first lateral port of the second Boifot junction to a third port. A second power divider for coupling the second lateral port of the first Boifot junction with the second lateral port of the second Boifot junction to a third port. A third power divider for coupling the third port of the first power divider with the third port of the second power divider to a fourth single polarization port.

Abstract: Radiofrequency module, including: a first layer including an array of radiating elements, each radiating element having a cross section for supporting at least one wave propagation mode, a second layer forming an array of waveguides; a fourth layer forming an array of ports; the second layer being interposed between the first and the fourth layer; each waveguide being connected to a port on the one hand and to a radiating element on the other hand for transmitting a radiofrequency signal between this port and this radiating element; the spacing between two ports being different from the spacing between the radiating elements, so that the surface area of the first layer is different from the surface area of the fourth layer; the waveguides being curved.

Abstract: Radio frequency device including at least: a tube through which a channel passes, a front face and/or a rear face forming a bearing surface through which the channel passes, the bearing surface forming an annular frame around one end of the tube and being integral with the tube. The bearing surface includes axial fixing apertures passing through the bearing surface and opening outside the channel in order to allow fixation of the device, and the width of the frame being greater at and in the immediate vicinity of the axial fixing apertures than at a distance from these axial fixing apertures.

Abstract: An arrangement for communication satellites including a payload bay. The arrangement includes an assembly of waveguides, waveguide fixation interfaces for fixing the waveguides to electronic equipment and/or components and a mechanical structure including a plurality of links interconnecting at least some of the waveguides to ensure the stability of the waveguide assembly. The arrangement further includes at least one heat pipe that is arranged to heat or cool one or more of the waveguides. The arrangement is formed in a single piece by 3D printing.

Abstract: Radiofrequency module, including: a first layer including an array of radiating elements, each radiating element having a cross section for supporting at least one wave propagation mode, a second layer forming an array of waveguides; a fourth layer forming an array of ports; the second layer being interposed between the first and the fourth layer; each waveguide being connected to a port on the one hand and to a radiating element on the other hand for transmitting a radiofrequency signal between this port and this radiating element; the spacing between two ports being different from the spacing between the radiating elements, so that the surface area of the first layer is different from the surface area of the fourth layer; the waveguides being curved.

Abstract: Radio-frequency component including several waveguide devices, for example antennas or polarizers, arranged in an array for transmitting and/or receiving electromagnetic signals. The radio-frequency component includes several ridges and each waveguide device includes: at least one inner wall; an upstream opening in the direction of propagation of the signals during emission; and a downstream opening in the direction of propagation of the emitting signals, linked to the upstream opening so that the emitting signals are transmitted from the upstream opening to the downstream opening. The arrangement of the ridges in the openings upstream of the radiofrequency component may be different from the arrangement of the ridges in the openings downstream of the radio-frequency component. The arrangement of ridges in the downstream openings of each waveguide device includes no more and no less than three ridges.

Abstract: A waveguide filter having a core including an external face and internal faces defining a channel for filtering and guiding the waves. The channel includes several slots, each having a first and a second face. The first face is inclined in relation to the second face. A method for manufacturing the waveguide filter.

Abstract: Radiofrequency module, including: a first layer including an array of radiating elements, each radiating element having a cross section for supporting at least one wave propagation mode, a second layer forming an array of waveguides; a fourth layer forming an array of ports; the second layer being interposed between the first and the fourth layer; each waveguide being connected to a port on the one hand and to a radiating element on the other hand for transmitting a radiofrequency signal between this port and this radiating element; the spacing between two ports being different from the spacing between the radiating elements, so that the surface area of the first layer is different from the surface area of the fourth layer; the waveguides being curved.

Abstract: An orthomode transducer including a first Boifot junction and a second Boifot junction. Each of the first and second Boifot junctions includes a dual polarized port, a first lateral port, a second lateral port, the first and second lateral port being single polarized, and a third single polarized port along the propagation direction of a signal in the dual polarized port. A first power divider for coupling the first lateral port of the first Boifot junction with the first lateral port of the second Boifot junction to a third port. A second power divider for coupling the second lateral port of the first Boifot junction with the second lateral port of the second Boifot junction to a third port. A third power divider for coupling the third port of the first power divider with the third port of the second power divider to a fourth single polarization port.