公开(公告)号：US20220007503A1

公开(公告)日：2022-01-06

申请号：US17479397

申请日：2021-09-20

Applicant: HUAWEI TECHNOLOGIES CO., LTD.

Inventor： Xinming LIU ,  Junfeng LU ,  Zhenxing WAN ,  Weimin LI

IPC: H05K1/02 ,  H01P1/18 ,  H01Q1/12

Abstract: The present disclosure relates to phase shifters, antennas, and base stations. One example phase shifter includes a cavity, a built-in printed circuit board (PCB), and a stress relief portion. The stress relief portion is connected to the PCB, and the stress relief portion is configured to reduce a stress generated due to different coefficients of thermal expansion (CTE) of the cavity and the PCB.