Title:
NOISE ELIMINATION CIRCUIT, AND COMMUNICATION DEVICE EQUIPPED WITH SAME
Document Type and Number:
WIPO Patent Application WO/2023/106068
Kind Code:
A1
Abstract:
A noise elimination circuit (100) comprises a coupling line (110) and a resonance unit (105), and is connected between a first transmission line (21) and a second transmission line (22) to eliminate noise between the transmission lines. The coupling line (110) is connected to the first transmission line (21) and the second transmission line (22). The resonance unit (105) includes a plurality of resonance circuits (RC1 to RCn) connected in parallel with the coupling line (110). The coupling line (110) and the resonance unit (105) constitute a band-pass filter. The noise elimination circuit (100) cancels out a real part and an imaginary part of an admittance between the transmission lines.
Inventors:
SAEKI HIROMASA (JP)
TAMURA MASAYA (JP)
TAKAGI MASAYA (JP)
TAMURA MASAYA (JP)
TAKAGI MASAYA (JP)
Application Number:
PCT/JP2022/042885
Publication Date:
June 15, 2023
Filing Date:
November 18, 2022
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
NATIONAL UNIV CORPORATION TOYOHASHI UNIV OF TECHNOLOGY (JP)
NATIONAL UNIV CORPORATION TOYOHASHI UNIV OF TECHNOLOGY (JP)
International Classes:
H04B1/525; H01Q1/24; H03H7/075; H04B1/10
Domestic Patent References:
| WO2002103922A1 | 2002-12-27 |
Foreign References:
| US4952193A | 1990-08-28 | |||
| JP2000013311A | 2000-01-14 | |||
| JP2015524212A | 2015-08-20 | |||
| JP2017502566A | 2017-01-19 | |||
| US20040142700A1 | 2004-07-22 | |||
| US20160285504A1 | 2016-09-29 | |||
| US20160266245A1 | 2016-09-15 | |||
| US20150171903A1 | 2015-06-18 | |||
| JP2016504855A | 2016-02-12 | |||
| JP2019506778A | 2019-03-07 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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