US 12,218,429 B2
Antenna assembly and base station antenna
Xiaotuo Wang, Suzhou (CN); and Shuguang Shao, Suzhou (CN)
Assigned to Outdoor Wireless Networks LLC, Claremont, NC (US)
Appl. No. 17/905,286
Filed by Outdoor Wireless Networks LLC, Claremont, NC (US)
PCT Filed Mar. 8, 2021, PCT No. PCT/US2021/021346
§ 371(c)(1), (2) Date Aug. 30, 2022,
PCT Pub. No. WO2021/188317, PCT Pub. Date Sep. 23, 2021.
Claims priority of application No. 202010191740.3 (CN), filed on Mar. 18, 2020.
Prior Publication US 2023/0019212 A1, Jan. 19, 2023
Int. Cl. H01Q 21/00 (2006.01); H01Q 1/24 (2006.01); H01Q 1/38 (2006.01); H01Q 1/42 (2006.01); H01Q 3/26 (2006.01); H04B 17/12 (2015.01)
CPC H01Q 21/0075 (2013.01) [H01Q 1/246 (2013.01); H01Q 1/38 (2013.01); H01Q 1/42 (2013.01); H01Q 3/267 (2013.01); H04B 17/12 (2015.01)] 16 Claims
OG exemplary drawing
 
1. An antenna assembly, comprising:
a feed board, a backplane, and a calibration board, wherein a plurality of radiating elements are mounted on the feed board and extend forwardly from the feed board, wherein the feed board is mounted on a first major surface of the backplane, and the calibration board is mounted on a second major surface of the backplane opposite the first major surface, wherein the antenna assembly further includes a conductive structure which extends through openings in at least two of the feed board, the backplane and the calibration board so as to electrically connect a first transmission line on the calibration board with a second transmission line on the feed board,
wherein the backplane includes a first opening, the feed board has a second opening corresponding to the first opening, and the calibration board has a third opening corresponding to the first opening, and wherein the conductive structure extends through the first opening, the second opening, and the third opening, and
wherein the conductive structure comprises a metal conductor, and wherein the antenna assembly further includes a solid dielectric member which directly contacts the backplane and which surrounds the metal conductor within the first opening of the backplane, wherein the dielectric member is cylindrical with an open center channel and resides only in the first opening of the backplane above the feed board and below the calibration board, wherein the conductive structure extends through the center channel of the dielectric member with the dielectric member held in the first opening of the backplane, and wherein the backplane defines a conductive peripheral wall of the first opening thereby providing a conductive outer conductor for the conductive structure.