# US 11,309,622 B2 · Apparatus for attaching an orthogonal mode transducer to an antenna > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,309,622 B2 - Document ID: US11309622B2 - Status: Granted - Kind: B2 - Application number: 16/859,862 - Filed: 2020-04-27 - Published: 2020-10-29 - Granted: 2022-04-19 - Earliest claimed: 2019-04-29 - Assignees: Nokia Shanghai Bell Co., Ltd. - Applicants: Nokia Shanghai Bell Co., Ltd. - Inventors: Loic Isambard - Web page: https://patentgrep.com/patent/US11309622B2 ## CPC - H01Q 1/24: with receiving set - H01Q 1/12: Supports; Mounting means - H01Q 1/1207: {for fastening a rigid aerial element} - H01P 1/042: {Hollow waveguide joints} - H01P 1/161: sustaining two independent orthogonal modes, e.g. orthomode transducer {(combining or separating polarisations and frequencies H01P1/2131)} - H01P 5/02: with invariable factor of coupling (H01P5/12 takes precedence {choke joints H01P1/04, H01P1/06}) - H01Q 19/134: {Rear-feeds; Splash plate feeds} - 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 Apparatus for attaching an orthogonal mode transducer, OMT, to an antenna, wherein said apparatus comprises a frame for receiving said OMT, and an antenna interface device for establishing a radio frequency, RF, signal connection between said OMT and said antenna, wherein said frame comprises a supporting surface for releasably attaching said antenna interface device to said frame. ## Claims ### Claim 1 An apparatus for attaching an orthogonal mode transducer, OMT, to an antenna, wherein said apparatus comprises a frame for receiving said OMT, and an antenna interface device for establishing a radio frequency, RF, signal connection between said OMT and said antenna, wherein said frame comprises a supporting surface for releasably attaching said antenna interface device to said frame and a fastening device for releasably attaching said frame to said antenna; and wherein said fastening device comprises at least two fastening sections, wherein at least one of said two fastening sections comprises an elastically deformable zone. ### Claim 2 (depends on 1) The apparatus according to claim 1, wherein at least one of said at least two fastening sections comprises a basically planar end section, wherein at least one oblong hole is provided in said basically planar end section. ### Claim 3 (depends on 1) The apparatus according to claim 1, wherein at least one of said two fastening sections comprises C-shape. ### Claim 4 (depends on 1) The apparatus according to claim 1, wherein a waveguide is provided for connecting said antenna interface device with said OMT. ### Claim 5 (depends on 4) The apparatus according to claim 4, wherein said waveguide is sealingly connected with said antenna interface device and said OMT, and said waveguide is mechanically connected with said antenna interface device and said OMT forming a monolithic OMT sub-assembly. ### Claim 6 (depends on 1) The apparatus according to claim 1, wherein the antenna interface device comprises a cylindrical body and a flange section extending radially from said body, wherein said flange section comprises a plurality of holes. ### Claim 7 (depends on 6) The apparatus according to claim 6, wherein said flange section comprises a convex cylindrical surface. ### Claim 8 (depends on 1) The apparatus according to claim 1, wherein the supporting surface comprises a plurality of threaded holes. ### Claim 9 (depends on 1) The apparatus according to claim 1, wherein said OMT comprises at least one flange section for releasably attaching said OMT to said frame, wherein said at least one flange section comprises at least one oblong hole. ### Claim 10 (depends on 1) The apparatus according to claim 1, wherein said frame comprises a receiving section for releasably attaching said OMT to said frame, wherein preferably said receiving section comprises a plurality of threaded holes. ### Claim 11 (depends on 10) The apparatus according to claim 10, wherein said supporting surface is arranged in a first axial end section of said frame, and wherein said receiving section is arranged in a second axial end section of said frame. ### Claim 12 A method of providing an apparatus for attaching an orthogonal mode transducer, OMT, to an antenna, wherein said apparatus comprises a frame for receiving said OMT, and an antenna interface device for establishing a radio frequency, RF, signal connection between said OMT and said antenna, wherein said frame comprises a supporting surface for releasably attaching said antenna interface device to said frame and a fastening device for releasably attaching said frame to said antenna, said method comprising: providing said antenna interface device, releasably attaching said antenna interface device to said frame, and releasably attaching said OMT to said antenna interface device, and wherein said fastening device comprises at least two fastening sections, wherein at least one of said two fastening sections comprises an elastically deformable zone. ### Claim 13 (depends on 12) The method according to claim 12, further comprising: providing a monolithic OMT sub-assembly comprising said antenna interface device, said OMT, and optionally a waveguide connecting said antenna interface device with said OMT, attaching said antenna interface device to said supporting surface of said frame, and attaching said OMT to said frame. ### Claim 14 An apparatus for attaching an orthogonal mode transducer, OMT, to an antenna, wherein said apparatus comprises a frame for receiving said OMT, and an antenna interface device for establishing a radio frequency, RF, signal connection between said OMT and said antenna, wherein said frame comprises a supporting surface for releasably attaching said antenna interface device to said frame and a receiving section for releasably attaching said OMT to said frame, wherein said receiving section comprises a plurality of threaded holes; and wherein said supporting surface is arranged in a first axial end section of said frame, and said receiving section is arranged in a second axial end section of said frame.