公开(公告)号：US20230032019A1

公开(公告)日：2023-02-02

申请号：US17789101

申请日：2020-10-26

Applicant: Huawei Technologies Co., Ltd.

Inventor： Weibo PENG ,  Cheng GOU ,  Jian WANG ,  Zijian SU

IPC: H03K17/96 ,  H01Q21/08

Abstract: An electronic device includes a first antenna unit. The first antenna unit includes a first radiator, the first radiator is configured to receive and transmit a radio frequency signal, and the first radiator is further configured to sense capacitance or a capacitance change between the first radiator and a detected object when the detected object approaches. The electronic device further includes a sensor chip. The sensor chip is configured to obtain the capacitance or the capacitance change, to determine a proximity of the detected object relative to the first radiator, and the sensor chip is electrically connected to a minimum-voltage point on the first radiator by a conducting wire.