# US 12,015,184 B2 · Radio-frequency component comprising several waveguide devices with ridges > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,015,184 B2 - Document ID: US12015184B2 - Status: Granted - Kind: B2 - Application number: 17/276,987 - Filed: 2020-03-27 - Published: 2022-01-27 - Granted: 2024-06-18 - Earliest claimed: 2019-03-28 - Assignees: Swissto12 SA - Applicants: SWISSto12 SA - Inventors: Esteban Menargues Gomez; Tomislav Debogovic; Santiago Capdevila Cascante; Emile de Rijk - Web page: https://patentgrep.com/patent/US12015184B2 ## CPC - H01P 1/165: for rotating the plane of polarisation - H01P 1/173: {using a conductive element} - H01Q 3/26: varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture ({H01Q3/12,} H01Q3/22, H01Q3/24 take precedence) - H01Q 13/0258: {Orthomode horns (orthomode transducers H01P1/161)} - H01Q 13/28: comprising elements constituting electric discontinuities and spaced in direction of wave propagation, e.g. dielectric elements or conductive elements forming artificial dielectric - H01Q 15/244: {converting a linear polarised wave into a circular polarised wave (guided wave H01P1/17)} - H01P: WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G02B) - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) ## 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. ## Claims ### Claim 1 A radio-frequency component comprising several waveguide devices arranged in an array for transmitting and/or receiving electromagnetic signals, the radio-frequency component comprising several ridges, each waveguide device comprising: at least one inner wall; at least two upstream openings in the direction of propagation of said signals during emission; a downstream opening in said direction of propagation of said emitting signals, linked to said at least two upstream openings so that said emitting signals are transmitted from said at least two upstream openings to said downstream opening; wherein: the arrangement of ridges in the downstream openings of each waveguide device comprises no more and no less than three ridges, the number of ridges in each upstream opening of at least one waveguide device is not three, and in each waveguide device, a first ridge in the downstream opening extends in said direction of propagation to the at least two upstream openings so as to form a septum. ### Claim 2 (depends on 1) The radio-frequency component of claim 1, wherein the arrangement of the ridges in the at least two upstream openings of at least one said device is different from the arrangement of the ridges in the downstream opening of the same device. ### Claim 3 (depends on 2) The radio-frequency component of claim 2, wherein the component is a polarizer provided with said septum enabling circular polarization to be obtained. ### Claim 4 (depends on 1) The radio-frequency component of claim 1, wherein the orientation of the ridges in the downstream openings of the different devices is different. ### Claim 5 (depends on 4) The radio-frequency component of claim 4, said devices comprising antennas, the arrangement of downstream ridges reducing the mutual coupling between signals transmitted or received by the different antennas. ### Claim 6 (depends on 1) The radio-frequency component of claim 1, wherein the angular space between the different ridges of the at least two upstream openings of a device is different from the angular space between the ridges of the downstream opening of this device. ### Claim 7 (depends on 1) The radio-frequency component of claim 1, wherein at least one of said ridges is curved. ### Claim 8 (depends on 6) The radio-frequency component of claim 6, wherein at least one of the ridges has two walls parallel to each other, said walls being curved. ### Claim 9 (depends on 8) The radio-frequency component of claim 8, each ridge opening into said downstream opening of the device and into a corresponding one of said at least two upstream openings of the device in a radial plane. ### Claim 10 (depends on 1) The radio-frequency component of claim 1, wherein the radial position of the ridges of the at least two upstream openings of at least one said device is different from the radial position of the three ridges of the downstream opening of this device. ### Claim 11 (depends on 1) The radio-frequency component of claim 1, wherein the height of at least one of the ridges of at least one said device varies over at least a portion of the length of this ridge. ### Claim 12 (depends on 1) The radio-frequency component of claim 1, comprising a plurality of said devices, the at least two upstream openings of the different devices being in a first plane, the downstream openings of the different devices being in a second plane parallel to the first plane. ### Claim 13 (depends on 12) The radio-frequency component of claim 12, each device comprising a waveguide and an antenna with an opening linked to this waveguide and intended to transmit and/or receive electromagnetic signals, each antenna defining a said downstream opening, each antenna comprising at least one internal wall with three ridges, wherein the orientation of the ridges between adjacent antennas is out of phase. ### Claim 14 (depends on 12) The radio-frequency component of claim 12, each said downstream opening being at least partially surrounded by a rim to minimize mutual coupling between antennas. ### Claim 15 (depends on 12) The radio-frequency component of claim 12, each downstream opening gradually widening in the downstream direction forming several steps. ### Claim 16 (depends on 12) The radio-frequency component of claim 12, each downstream opening being ridged, the height of said ridges gradually decreasing in the downstream direction forming several steps. ### Claim 17 (depends on 3) The radio-frequency component of claim 3, wherein the septum is of variable height forming staircase steps.