Huawei Technologies Co., Limited

Junhong Zhang

Zhongying Long

Huiliang Xu

Hanyang Wang

Shuhui Sun

Yi Fan

Zhenghao Li

Chungwen Yang

A wireless earphone, including an earbud part, an earbud stem part, and an antenna unit disposed in the earbud part and the earbud stem part. The antenna unit includes: a first antenna radiator having a first end fed by a first feeding unit and a second antenna radiator having a second end fed by a second feeding unit, where the second end and the first end are disposed at intervals; and a third antenna radiator having a first ground point and a third end. At least a part of the third antenna radiator is located in the earbud part. One of the first and second antenna radiators is located in the earbud part, and the other is located in the earbud stem part; or at least a part of the first and second antenna radiators both are located in the earbud stem part.

Wireless earphone

In an embodiment a wireless earphone includes an earbud portion having a speaker module, a stalk portion having a battery, wherein the earbud portion is connected to one end of the stalk portion, a circuit board and a first antenna being a slot antenna, wherein the circuit board extends from the earbud portion to an end of the stalk portion away from the earbud portion, wherein the circuit board is connected to the speaker module and the battery, wherein the circuit board comprises a reference ground, the reference ground extending from one end of the circuit board to another end of the circuit board, and wherein a slot is disposed on the reference ground forming a radiator of the slot antenna, the slot being located in the stalk portion and extending along a length direction of the stalk portion.

A Bluetooth earphone includes an antenna and a circuit board. The circuit board includes a first grounding branch and a second grounding branch. The first grounding branch is connected in series to a first switch, and the second grounding branch is connected in series to a second switch. When the first switch is on, the first grounding branch serves as a current return path of the antenna. When the second switch is on, the second grounding branch serves as a current return path of the antenna. By controlling the on or off state of the first switch and the second switch, the Bluetooth earphone can switch ground structures of the antenna and select different current return paths for the antenna, to switch radiation patterns of the antenna.

Bluetooth earphone

An antenna radiates signals in Band41 whose center frequency is &#x3bb;and Band42 whose center frequency is &#x3bb;. A medium substrate is used as a carrier of a top radiating element, a phase inversion unit, and a bottom radiating element; an end of the top radiating element is connected to an end of the phase inversion unit; the other end of the phase inversion unit is connected to an end of the bottom radiating element, a length of the phase inversion unit is 3&#x3bb;/2, and the length of the phase inversion unit is greater than &#x3bb;/2; and the phase inversion unit includes at least two current phase inversion points, a part between the at least two current phase inversion points does not produce radiation, and the top radiating element and the bottom radiating element horizontally radiate the signal in the Band41 and the signal in the Band42 omnidirectionally.

Growing community of inventors

Dongguan, China

Junhong Zhang