# US 12,451,626 B2 · Connection assembly for antenna and base station antenna > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,451,626 B2 - Document ID: US12451626B2 - Status: Granted - Kind: B2 - Application number: 17/879,962 - Filed: 2022-08-03 - Published: 2023-03-02 - Granted: 2025-10-21 - Earliest claimed: 2021-08-27 - Assignees: Outdoor Wireless Networks LLC - Applicants: Outdoor Wireless Networks LLC - Inventors: Cheng Xue; Bo Wu; Fei Li; Jian Zhang; Yuanpeng Ren; Changfu Chen; Xun Zhang - Web page: https://patentgrep.com/patent/US12451626B2 ## CPC - H01P 5/085: {Coaxial-line/strip-line transitions} - H01R 12/53: connecting to cables except for flat or ribbon cables - H01P 3/026: {Coplanar striplines [CPS]} - H01Q 1/48: Earthing means; Earth screens; Counterpoises - H05K 1/0243: {Printed circuits associated with mounted high frequency components} - H05K 1/111: {Pads for surface mounting, e.g. lay-out} - H05K 1/115: {Via connections; Lands around holes or via connections (H05K1/112 takes precedence)} - H05K 3/3405: {Edge mounted components, e.g. terminals} - H01R 9/0515: {Connection to a rigid planar substrate, e.g. printed circuit board} - H05K 1/0219: {Printed shielding conductors for shielding around or between signal conductors, e.g. coplanar or coaxial printed shielding conductors} - H05K 1/113: {Via provided in pad; Pad over filled via} - H05K 2201/09063: Holes or slots in insulating substrate not used for electrical connections - H05K 2201/09254: Branched layout - H05K 2201/09618: Via fence, i.e. one-dimensional array of vias - H05K 2201/10098: Components for radio transmission, e.g. radio frequency identification [RFID] tag, printed or non-printed antennas - H05K 2201/10189: Non-printed connector - H05K 2201/10356: Cables - H01P: WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE (operating at optical frequencies G02B) - H01R: ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS - H01Q: ANTENNAS, i.e. RADIO AERIALS (radiators or antennas for microwave heating H05B6/72) - H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ## Abstract A connection assembly for an antenna includes a printed circuit board and a coaxial cable connected to the printed circuit board. A transmission trace and a solder pad are provided on the printed circuit board. An opening for receiving an end portion of the coaxial cable is also provided in the printed circuit board, and an exposed outer conductor of the end portion extends into the opening, and an exposed inner conductor reaches the solder pad. The connection assembly further includes a ground structure, which is electrically connected to a ground metal layer on a second surface of the printed circuit board, and the ground structure is at least partially arranged on both sides of the exposed inner conductor and/or the exposed outer conductor. ## Claims ### Claim 1 A connection assembly for an antenna, the connection assembly including a printed circuit board and a coaxial cable that has an inner conductor and an outer conductor connected to the printed circuit board, wherein a transmission trace is provided on a first surface of the printed circuit board, and a solder pad for electrically connecting the transmission trace is provided on the printed circuit board; an opening extending completely through the printed circuit board, wherein an exposed portion of the outer conductor at least partially extends in the opening, and an exposed portion of the inner conductor is soldered to the solder pad and is electrically connected to the transmission trace; the connection assembly further includes a ground structure, which is electrically connected to a ground metal layer on a second surface of the printed circuit board, wherein the ground structure is at least partially arranged on both sides of the exposed inner conductor and/or the exposed outer conductor, wherein the inner conductor passes completely through the opening. ### Claim 2 (depends on 1) The connection assembly according to claim 1, wherein the ground structure includes a metal pattern area provided on the first surface of the printed circuit board, and the metal pattern area is electrically connected to the ground metal layer provided on the second surface of the printed circuit board via one or more via holes. ### Claim 3 (depends on 1) The connection assembly according to claim 1, wherein the exposed portion of the outer conductor is soldered to a ground pad that is electrically connected to the ground metal layer. ### Claim 4 (depends on 2) The connection assembly according to claim 2, wherein the metal pattern area extends around the opening in a strip shape. ### Claim 5 (depends on 2) The connection assembly according to claim 2, wherein the metal pattern area includes a first section arranged on both sides of the exposed portion of the inner conductor and a second section arranged on both sides of the exposed portion of the outer conductor. ### Claim 6 (depends on 1) The connection assembly according to claim 1, wherein the coaxial cable extends in the opening in an orientation at an angle of less than 20° with the printed circuit board. ### Claim 7 (depends on 1) The connection assembly according to claim 1, wherein the coaxial cable extends in the opening parallel to the printed circuit board. ### Claim 8 (depends on 2) The connection assembly according to claim 2, wherein the metal pattern area surrounds the opening on at least two sides. ### Claim 9 (depends on 8) The connection assembly according to claim 8, wherein the metal pattern area surrounds the opening on three sides. ### Claim 10 (depends on 8) The connection assembly according to claim 8, wherein the metal pattern area is electrically connected to the ground metal layer through a series of via holes arranged in accordance with the shape of the metal pattern area. ### Claim 11 (depends on 1) The connection assembly according to claim 1, wherein the exposed portion of the inner conductor, together with the ground structure arranged on both sides of the exposed portion of the inner conductor, forms a coplanar waveguide structure. ### Claim 12 (depends on 1) The connection assembly according to claim 1, wherein the ground structure extends along the entire length of the exposed portion of the inner conductor. ### Claim 13 A connection assembly for an antenna, the connection assembly including a printed circuit board and a coaxial cable connected to the printed circuit board, wherein a transmission trace is provided on a first surface of the printed circuit board, and a solder pad for electrically connecting the transmission trace is provided on the printed circuit board; an opening for receiving an end portion of the coaxial cable is provided in the printed circuit board, wherein an exposed outer conductor of the end portion partially or completely extends in the opening, and an exposed inner conductor of the end portion that extends from the exposed outer conductor is soldered to the solder pad and is electrically connected to the transmission trace; the connection assembly further includes a ground structure, which is electrically connected to a ground metal layer on a second surface of the printed circuit board, wherein the ground structure is at least partially arranged on both sides of the exposed inner conductor and/or the exposed outer conductor, wherein an impedance matching portion is provided on the first surface and/or the second surface of the printed circuit board, and the impedance matching portion is electrically connected to the solder pad. ### Claim 14 (depends on 13) The connection assembly according to claim 13, wherein the ground structure is arranged on both sides of the solder pad and/or the impedance matching portion. ### Claim 15 A connection assembly for an antenna, the connection assembly including a printed circuit board and a coaxial cable connected to the printed circuit board, wherein a transmission trace is provided on a first surface of the printed circuit board, and a solder pad for electrically connecting the transmission trace is provided on the printed circuit board; an opening for receiving an end portion of the coaxial cable is provided in the printed circuit board, wherein an exposed outer conductor of the end portion partially or completely extends in the opening, and an exposed inner conductor of the end portion that extends from the exposed outer conductor is soldered to the solder pad and is electrically connected to the transmission trace; the connection assembly further includes a ground structure, which is electrically connected to a ground metal layer on a second surface of the printed circuit board, wherein the ground structure is at least partially arranged on both sides of the exposed inner conductor and/or the exposed outer conductor, wherein the ground structure includes a metal pattern area provided on the first surface of the printed circuit board, and the metal pattern area is electrically connected to the ground metal layer provided on the second surface of the printed circuit board via one or more via holes, wherein the ground structure further includes a ground connector, which is soldered to the metal pattern area to form the ground structure together with the metal pattern area. ### Claim 16 (depends on 15) The connection assembly according to claim 15, wherein the ground connector may include an outer conductor joint portion and a ground joint portion, the outer conductor joint portion is configured to be soldered to the exposed portion of the outer conductor, the ground joint portion is configured to be soldered to the metal pattern area. ### Claim 17 (depends on 16) The connection assembly according to claim 16, wherein a first part of the ground joint portion is soldered to the metal pattern area on the first surface of the printed circuit board, and a second part of the ground joint portion is soldered to the ground pad electrically connected to the ground metal layer on the second surface of the printed circuit board. ### Claim 18 (depends on 16) The connection assembly according to claim 16, wherein the ground connector is configured as a ground clip, the outer conductor joint portion of the ground clip is configured as a hollow tubular portion, which sleeves the exposed outer conductor and is soldered to the exposed outer conductor, the ground joint portion of the ground clip has a first side wall and a second side wall which are respectively arranged on one side of the exposed inner conductor. ### Claim 19 (depends on 15) The connection assembly according to claim 15, wherein the ground connector is arranged on both sides of the exposed portion of the inner conductor, and the metal pattern area is arranged on both sides of the exposed portion of the outer conductor. ### Claim 20 (depends on 15) The connection assembly according to claim 15, wherein the ground connector and the metal pattern area form a conducting loop.