Title:
MATCHING CIRCUIT, MATCHING CIRCUIT ELEMENT, AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/121874
Kind Code:
A1
Abstract:
This matching circuit (101A) is provided with a first input and output port (P1), a second input and output port (P2), a first coil (L1), a second coil (L2), a third coil (L3), and a capacitor (C). The first coil (L1) is connected in series between the first input and output port (P1) and the second input and output port (P2), a second coil (L2) is connected in shunt between the ground and an input and output line (SL) that is composed between the first input and output port (P1) and the second input and output port (P2). The first coil (L1) and the second coil (L2) are mutually and magnetically coupled, the third coil (L3) is magnetically coupled with at least one among the first coil (L1) and the second coil (L2), the capacitor (C) is directly or indirectly connected to the third coil (L3), and a closed path is formed including the capacitor (C) and the third coil (L3).
More Like This:
Inventors:
AKIYAMA HISASHI (JP)
ISHIZUKA KENICHI (JP)
ISHIZUKA KENICHI (JP)
Application Number:
PCT/JP2019/047063
Publication Date:
June 18, 2020
Filing Date:
December 02, 2019
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01F19/06; H01F17/00; H03H7/09; H03H7/38; H04B1/18
Domestic Patent References:
| WO2015178204A1 | 2015-11-26 |
Foreign References:
| JP2018509798A | 2018-04-05 |
Attorney, Agent or Firm:
KAEDE PATENT ATTORNEYS' OFFICE (JP)
Download PDF: