US 12,283,757 B2
Ret assemblies providing synchronized phase shift of phase shifters for base station antennas
Fan He, Suzhou (CN)
Assigned to Outdoor Wireless Networks LLC, Richardson, TX (US)
Appl. No. 18/729,239
Filed by Outdoor Wireless Networks LLC, Claremont, NC (US)
PCT Filed Apr. 27, 2023, PCT No. PCT/US2023/020102
§ 371(c)(1), (2) Date Jul. 16, 2024,
PCT Pub. No. WO2023/235081, PCT Pub. Date Dec. 7, 2023.
Claims priority of application No. 202210595802.6 (CN), filed on May 30, 2022.
Prior Publication US 2025/0007153 A1, Jan. 2, 2025
Int. Cl. H01Q 3/32 (2006.01); H01P 1/18 (2006.01); H01Q 3/16 (2006.01); H01Q 3/36 (2006.01); H01Q 21/06 (2006.01); H01Q 21/26 (2006.01)
CPC H01Q 3/16 (2013.01) [H01Q 3/32 (2013.01); H01Q 21/062 (2013.01); H01Q 21/26 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A remote electronic tilt (RET) assembly, comprising:
a gear plate comprising a plurality of arms that extend in a longitudinal direction and that are laterally spaced apart, wherein at least some of the plurality of arms define linear gear tracks comprising gear teeth;
a plurality of gears, each of the plurality of gears rotatably coupled to one or two of the linear gear tracks;
a motor coupled to a lead screw that is coupled to the gear plate, wherein the motor and lead screw are configured to drive the gear plate upwardly and downwardly;
a plurality of phase shifters, each phase shifter including a respective wiper that is located in front of the gear plate, wherein each gear is coupled to one or more of the plurality of phase shifters; and
a plurality of radiating elements in front of the gear plate and coupled to the phase shifters, whereby downtilt angles of antenna beams generated by respective subsets of the radiating elements are changed in response to translation of the gear plate.