Title:
FILTER DEVICE AND HIGH-FREQUENCY FRONT END CIRCUIT HAVING SAME MOUNTED THEREON
Document Type and Number:
WIPO Patent Application WO/2022/097492
Kind Code:
A1
Abstract:
A filter (100) comprises: a body (110); and filters having different passbands (FLT, FLT2). In the body (110), an inductor of the filter (FLT1) is disposed in a region (RG1), and an inductor of the filter (FLT2) is disposed in a region (RG2). The inductor included in the filter (FLT1) is a vertical coil including a flat-plate electrode provided on the body, and a via extending in a direction normal to the body. In the filter (FLT2), the inductor, which is disposed at a position facing the region (RG1), is a planar coil wound around an axis extending in the direction normal to the body (110). When viewed from above in the direction normal to the body (110), a virtual line (CL1) extending from a center in an extension direction of the planar electrode in the filter (FLT1) to a direction orthogonal to the extension direction does not intersect with the inductor of the filter (FLT2).
Inventors:
TANAKA AKIRA (JP)
Application Number:
PCT/JP2021/038908
Publication Date:
May 12, 2022
Filing Date:
October 21, 2021
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01F17/00; H01F27/00; H03H7/075; H03H7/46
Foreign References:
| JP2017092546A | 2017-05-25 | |||
| JP2019507972A | 2019-03-22 | |||
| JP2021027369A | 2021-02-22 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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