Patent ID: 11956585
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 9:
10. A bluetooth earphone comprising:
an earbud part, wherein the earbud part is provided with an earpiece module;
an earphone handle part, further comprising:
a connecting section connected to the earbud part,
a top section and a bottom section located at both sides of the connecting section, wherein the bottom section of the earphone handle part is provided with a first microphone module,
an antenna, wherein the antenna extends from the connecting section of the earphone handle part to the top section of the earphone handle part, and
a circuit board, further comprising:
a feeding part located at the connecting section of the earphone handle part,
a first end part located at the earbud part,
a first connection part that connects the feeding part and the first end part,
a second end part located at the bottom section of the earphone handle part, and
a second connection part that connects the feeding part and the second end part,
a feeding pad located at the feeding part and coupled to the antenna,
a ground plane located at the feeding part and spaced from the feeding pad,
a first grounding branch, wherein one end of the first grounding branch is connected to the ground plane and the other end of the first grounding branch extends to the first end part, and
a second grounding branch, wherein one end of the second grounding branch is connected to the ground plane, the other end of the second grounding branch extends to the second end part, the second grounding branch is connected in series to a first branch and further comprises a second branch, one end of the second branch is connected to one end of the first branch and the other end of the second branch is connected or coupled to the other end of the first branch, the second branch is connected in series to a switch, and the second branch is shorter than the first branch.