# US 11,309,637 B2 · Radiofrequency module > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,309,637 B2 - Document ID: US11309637B2 - Status: Granted - Kind: B2 - Application number: 17/059,748 - Filed: 2018-12-06 - Published: 2021-07-15 - Granted: 2022-04-19 - Earliest claimed: 2018-06-01 - Assignees: Swissto12 SA - Applicants: SWISSto12 SA - Inventors: Esteban Menargues Gomez; Santiago Capdevila Cascante; Emile de Rijk; Tomislav Debogovic - Web page: https://patentgrep.com/patent/US11309637B2 ## CPC - H01Q 21/005: {Slotted waveguides arrays} - H01Q 21/064: {using horn or slot aerials (slotted waveguides arrays H01Q21/005)} - H01P 1/161: sustaining two independent orthogonal modes, e.g. orthomode transducer {(combining or separating polarisations and frequencies H01P1/2131)} - H01Q 13/0258: {Orthomode horns (orthomode transducers H01P1/161)} - H01Q 13/0275: {Ridged horns (slot-line radiating ends H01Q13/085)} - H01Q 13/06: Waveguide mouths (horns H01Q13/02) - H01Q 15/24: Polarising devices; Polarisation filters (H01Q15/12, H01Q15/22 take precedence) - H01Q 21/0006: {Particular feeding systems} - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) - H01P: WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G02B) ## 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. ## Claims ### Claim 1 A radiofrequency module, comprising: a first layer comprising 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; and a fourth layer forming an array of ports, the second layer being interposed between the first and the fourth layer, each waveguide being configured to transmit a radiofrequency signal in one or other direction between a port of the fourth layer and a radiating element of the first layer, the surface area of the first layer being different from the surface area of the fourth layer, the waveguides approaching one another between the fourth layer and the first layer, or between the first layer and the fourth layer, the array of radiating elements of the first layer forming a two-dimensional array in a first plane, the array of ports of the fourth layer forming a two-dimensional array in a second plane, and adjacent radiant elements sharing a common side edge. ### Claim 2 (depends on 1) The radiofrequency module as claimed in claim 1, the surface area of the first layer being smaller than the surface area of the fourth layer and the waveguides approaching one another between the fourth layer and the first layer. ### Claim 3 (depends on 2) The radiofrequency module as claimed in claim 2, the spacing (p1) between two radiating elements of the first layer being less than λ\2, λ being the wavelength at the maximum operating frequency. ### Claim 4 (depends on 1) The radiofrequency module as claimed in claim 1, each cross section of the first layer being provided with at least one ridge parallel to the direction of propagation of the signal. ### Claim 5 (depends on 1) The radiofrequency module as claimed in claim 1, the surface area of the first layer being larger than the surface area of the fourth layer and the waveguides moving away from each other between the fourth layer and the first layer. ### Claim 6 (depends on 1) The radiofrequency module as claimed in claim 1, the radiating elements of the first layer being non-ridged and consisting of open waveguides with a square, rectangular, circular, hexagonal or octagonal cross section, or pyramidal or spline-shaped horns. ### Claim 7 (depends on 1) The radiofrequency module as claimed in claim 1, comprising a third layer interposed between the second layer and the fourth layer and comprising an array of elements providing a cross section adaptation between the output cross section of the ports of the fourth layer and the differently-shaped cross section of the waveguides. ### Claim 8 (depends on 1) The radiofrequency module as claimed in claim 1, comprising a third layer interposed between the second layer and the fourth layer and comprising an array of elements comprising a polarizer. ### Claim 9 (depends on 1) The radiofrequency module as claimed in claim 1, comprising polarizers between the first and the second layer. ### Claim 10 (depends on 1) The radiofrequency module as claimed in claim 1, comprising a third layer interposed between the second layer and the fourth layer and comprising a filter. ### Claim 11 (depends on 1) The radiofrequency module as claimed in claim 1, each waveguide having a square, rectangular, hexagonal, round or oval cross section, the inner faces of which are provided with at least one ridge extending longitudinally along each inner face of the waveguides. ### Claim 12 (depends on 1) The radiofrequency module as claimed in claim 1, the different waveguides being isophase. ### Claim 13 (depends on 12) The radiofrequency module as claimed in claim 12, the different waveguides having different lengths and different cross sections so as to compensate at least partially the differences in frequency response and/or the differences in phase caused by the different lengths and/or the different curvatures of the waveguides. ### Claim 14 (depends on 1) The radiofrequency module as claimed in claim 1, made by additive manufacturing. ### Claim 15 (depends on 14) The radiofrequency module as claimed in claim 14, formed by a monolithic element.