Title:
TRANSFORMER AND HIGH FREQUENCY MODULE
Document Type and Number:
WIPO Patent Application WO/2023/127387
Kind Code:
A1
Abstract:
Provided is a transformer with which signal loss at the transformer can be suppressed and the transformer coupling coefficient can be increased. A transformer (1) comprises: a balanced-side coil (6); an unbalanced-side coil (7); a wiring pattern portion (8); and a multilayer substrate (10). The balanced-side coil (6) includes a first end (6a), a second end (6b), and an intermediate tap (6c). The unbalanced-side coil (7) includes a third end (7a). The wiring pattern portion (8) is electrically connected to the intermediate tap (6c). The multilayer substrate (10) includes a plurality of dielectric layers (11-14). The balanced-side coil (6), the unbalanced-side coil (7), and the wiring pattern portion (8) are disposed in mutually different dielectric layers among the plurality of dielectric layers (11-14). The balanced-side coil (6) and the unbalanced-side coil (7) overlap each other in plan view from the thickness direction (D1) of the multilayer substrate (10). The wiring pattern portion (8) has a superimposed section (81) which overlaps the unbalanced-side coil (7) along the circumferential direction thereof, in plan view from the thickness direction (D1) of the multilayer substrate (10).
Inventors:
MORITA KYOHEI
Application Number:
PCT/JP2022/044288
Publication Date:
July 06, 2023
Filing Date:
November 30, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01F19/06; H01F17/00; H03H7/42
Foreign References:
| JP2012089543A | 2012-05-10 | |||
| JP2010147574A | 2010-07-01 | |||
| US20210104890A1 | 2021-04-08 |
Attorney, Agent or Firm:
HOKUTO PATENT ATTORNEYS OFFICE (JP)
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