Electronic device
AssigneeHuawei Technologies Co., Ltd.
InventorsWeibo Peng, Cheng Gou, Jian Wang, Zijian Su
Life of this patent
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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.
Claims13
An electronic device, comprising:
- a first antenna unit comprising a first radiator, configured to receive and transmit a radio frequency signal, and to sense a capacitance or a capacitance change between the first radiator and a detected object;
- and
- a sensor chip configured to obtain the capacitance or the capacitance change, to determine a proximity of the detected object relative to the first radiator, wherein the sensor chip is configured to be electrically connected to a minimum-voltage point on the first radiator by a conducting wire,
- wherein a feeding manner of the first antenna unit is direct feeding, wherein a high-pass filter circuit is configured to be connected in series to a radio frequency path of the first antenna unit and block a low-frequency signal corresponding to the capacitance or the capacitance change.
An electronic device, comprising:
- a first antenna unit comprising a first radiator, configured to receive and transmit a radio frequency signal, and to sense a capacitance or a capacitance change between the first radiator and a detected object;
- and
- a sensor chip configured to obtain the capacitance or the capacitance change, to determine a proximity of the detected object relative to the first radiator, wherein the sensor chip is configured to be electrically connected to a minimum-voltage point on the first radiator by a conducting wire, wherein the first antenna unit is a patch antenna, wherein the first radiator comprises one or more layers of conductor patches, and wherein the conducting wire is configured to be connected to a layer of conductor patch in the one or more layers of conductor patches, wherein the first antenna unit further comprises a feeding line, and wherein, when the feeding line and the conducting wire are configured to be connected to a same conductor patch, a high-pass filter circuit is configured to be connected in series to a radio frequency path of the first antenna unit and block a low-frequency signal corresponding to the capacitance or the capacitance change.
Dependencies are inferred from the claim text.