# US 2023/0056565 A1 · An improved adapter for a low intermodulation board-to-board rf coaxial connection assembly > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2023/0056565 A1 - Document ID: US20230056565A1 - Status: Published application - Kind: A1 - Application number: 17/755,805 - Filed: 2020-05-13 - Published: 2023-02-23 - Earliest claimed: 2020-05-13 - Assignees: Radiall - Applicants: Radiall - Inventors: Gong CHEN; Shan QIN; Chen SU - Web page: https://patentgrep.com/patent/US20230056565A1 ## CPC - H01R 31/06: Intermediate parts for linking two coupling parts, e.g. adapter (with a holder adapted for supporting apparatus to which its counterpart is attached H01R33/94) - H01R 12/707: {Soldering or welding} - H01R 12/7082: {Coupling device supported only by cooperation with PCB} - H01R 12/91: allowing relative movement between coupling parts, e.g. floating or self aligning (for coupling devices not specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures, H01R13/6315 takes precedence) - H01R 24/50: mounted on a PCB [Printed Circuit Board] - H01R 24/542: {Adapters} - H01R 12/73: connecting to other rigid printed circuits or like structures - H01R 2103/00: Two poles - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS ## Abstract The present application relates to a coaxial connector, intended to transmit radio frequency RF signals, of longitudinal axis X, including: - an outer contact forming a body/casing, which at least one of its ends is slotted defining contact petals, a central contact and, - at least one electrical insulating solid structure coaxially interposed between the central contact and the outer contact, which is mechanically retained in the outer contact and in which the central contact is mechanically retained, at least one of the free end of the electrical insulating solid structure having an elasticity of its periphery, at the level of the petals of the outer contact, which is increased compared to the rest of the electrical insulating solid structure. ## Claims ### Claim 1 A coaxial connector,intended to transmit radio frequency RF signals, of longitudinal axis X, comprising: an outer contact forming a body/casing, which at least one of its ends is slotted defining contact petals, a central contact and, at least one electrical insulating solid structure coaxially interposed between the central contact and the outer contact, which is mechanically retained in the outer contact and in which the central contact is mechanically retained, at least one of the free end of said electrical insulating solid structure having an elasticity of its periphery, at the level of the petals of the outer contact, which is increased compared to the rest of said electrical insulating solid structure. ### Claim 2 (depends on 1) A coaxial connector according to claim 1, wherein the increased elasticity ensures a uniformly distributed deformation of the petals of the outer contact or acts as a damper, when the connector is under working conditions. ### Claim 3 (depends on 1) A coaxial connector according to claim 1, wherein the increased elasticity is achieved by at least one axially opening groove formed on at least part the periphery of said electrical insulating solid structure. ### Claim 4 (depends on 3) A coaxial connector according claim 3, wherein the axially opening groove is an annular groove. ### Claim 5 (depends on 1) A coaxial connector according to claim 1, wherein the increased elasticity is achieved by at least one compressible gasket accommodated in a radially opening groove formed on the periphery of said electrical insulating solid structure. ### Claim 6 (depends on 1) A coaxial connector (4) according to claim 1, wherein the increased elasticity is achieved by a plurality holes distributed on at least part the periphery of said electrical insulating solid structure. ### Claim 7 (depends on 1) A coaxial connector) according to claim 1, wherein at least one end of the central contact is slotted defining contact petals each shaped at its front end with a bump, the inner diameter defined by the bumps being the smallest inner diameter of the central contact. ### Claim 8 (depends on 1) A coaxial connector according to claim 1, wherein at least one end of the central contact is slotted defining contact petals each shaped at its front end with a bump, the outer diameter defined by the bumps being the biggest outer diameter of the central contact. ### Claim 9 (depends on 1) A coaxial connector according to claim 1 wherein the outer contact and the electrical insulating solid structure are configured such that in a connection state with a complementary connector, the outer diameter of said electrical insulating solid structure is substantially the same as the inner diameter of said outer contact. ### Claim 10 (depends on 1) A coaxial connector according to claim 1, wherein the central contact and the electrical insulating solid structure are configured such that in a connection state with a complimentary connector, the inner diameter of said electrical insulating solid structure is substantially the same as the outer diameter of said central contact. ### Claim 11 (depends on 1) A coaxial connector according to claim 1, wherein each of the outer contact and the central contact is a symmetric structure, the connector comprising two identical electrical solid insulating structures. ### Claim 12 (depends on 10) A coaxial connection assembly, intended to link two printed circuit boards (PCBs) or a PCB and a module or two modules, comprises: a first receptacle forming a first end socket, intended to be installed in a filter body or cavity or brazed or welded to a first printed circuit board, said first receptacle comprising a pin central contact, a second receptacle forming a second end socket, intended to be installed in a filter body or cavity or brazed or welded to a second printed circuit board, said second receptacle comprising a pin central contact, a coaxial connector, called adapter, according to claim 10, wherein the pin central contact of the first end socket is intended to be inserted into one end of the central contact of the adapter whereas the pin central contact of the second end socket is intended to be inserted into another end of the other central contact of the adapter. ### Claim 13 (depends on 12) A connection assembly according to claim 12, wherein the adapter is intended to be snapped into the first end socket, and to slide relative to the second end socket in order to achieve axial tolerance during the connection. ### Claim 14 (depends on 12) A receptacle forming an end socket, for the connection assembly according to claim 12, comprising an outer contact and a pin central contact and an electrical insulating solid structure which front end has a ring-shaped bump, and/or an gasket made of a shock absorbing material, said gasket being arranged between an annular axially opening groove of the electrical insulating solid structure. ### Claim 15 (depends on 14) An end socket according to claim 14, wherein its pin central contact has a shoulder, said ring-shaped bump axially exceeds said shoulder.