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Title:
COMMON-MODE FILTER AND TERMINAL DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/110762
Kind Code:
A1
Abstract:
The present application provides a common-mode filter and a terminal device, and relates to the technical field of filters. The common-mode filter comprises a first winding and a second winding; a portion of the first winding and a portion of the second winding are rotatably formed on a first coil layer around the same axis, and the other portion of the first winding and the other portion of the second winding are rotatably formed on a second coil layer laminated with the first coil layer around the same axis. In the first coil layer and the second coil layer, a circle of second winding is provided between every two adjacent first windings. In the first coil layer, the first winding and the second winding surround from the outer circle to the inner circle, and the second winding is located on the outer circle with respect to the first winding. In the second coil layer, the first winding and the second winding surround from the inner circle to the outer circle, the second winding is located in the inner circle with respect to the first winding, and the surrounding direction of the first winding and the second winding in the second coil layer is the same as the surrounding direction of the first winding and the second winding in the first coil layer.

Inventors:
CHEN KAIKAI (CN)
LIU CHENJUN (CN)
CHENG WEICHANG (CN)
WU LONG (CN)
DI WEI (CN)
ZHOU JIANJUN (CN)
Application Number:
PCT/CN2021/099641
Publication Date:
June 02, 2022
Filing Date:
June 11, 2021
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H01F27/28; H01F17/06; H01F27/34; H03H7/09
Foreign References:
CN106068541A2016-11-02
CN111145985A2020-05-12
CN104737448A2015-06-24
CN202011356034A2020-11-26
Attorney, Agent or Firm:
BEIJING ZBSD PATENT&TRADEMARK AGENT LTD. (CN)
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