Title:
COIL DEVICE, CIRCUIT ELEMENT MODULE, AND ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/187083
Kind Code:
A1
Abstract:
A low-pass filter (201A, 201B) has: a first terminal pair (P1); a second terminal pair (P2); a first coil (La) that is connected in series between the first terminal pair (P1) and the second terminal pair (P2) and that has a first coil conductor wound around a winding axis; and a second coil (Lb) that is connected in parallel between the first terminal pair (P1) and the second terminal pair (P2), that has a second coil conductor wound around a winding axis, and that magnetically couples with the first coil (La). The area of the first coil conductor is larger than that of the second coil conductor.
Inventors:
MIKAWA KENTARO (JP)
Application Number:
PCT/JP2021/007850
Publication Date:
September 23, 2021
Filing Date:
March 02, 2021
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H7/09; H03H7/075; H03H7/38
Domestic Patent References:
| WO2019107081A1 | 2019-06-06 | |||
| WO2016152603A1 | 2016-09-29 |
Foreign References:
| US20100156194A1 | 2010-06-24 | |||
| JP2012164928A | 2012-08-30 | |||
| JP2011159953A | 2011-08-18 |
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
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