Title:
BALUN
Document Type and Number:
WIPO Patent Application WO/2018/168213
Kind Code:
A1
Abstract:
The purpose of the present invention is to downsize a balun supporting multiple bands. A balun (10) according to an embodiment of the present invention is provided with a first LC resonator (PLC12), a second LC resonator (PLC13), a third LC resonator (PLC22), and a fourth LC resonator (PLC 23). The second LC resonator (PLC13) is magnetically coupled to the first LC resonator (PLC12). The fourth LC resonator (PLC23) is magnetically coupled to the third LC resonator (PLC22), and is connected in parallel to the second LC resonator (PLC13) between a third terminal (P3) and a forth terminal (P4). The resonance frequencies of the first LC resonator (PLC12) and the second LC resonator (PLC13) are a first resonance frequency. The resonance frequencies of the third LC resonator (PLC22) and the fourth LC resonator (PLC23) are a second resonance frequency higher than the first resonance frequency.
Inventors:
TANIGUCHI TETSUO (JP)
Application Number:
PCT/JP2018/002146
Publication Date:
September 20, 2018
Filing Date:
January 24, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H7/42
Domestic Patent References:
| WO2012127952A1 | 2012-09-27 |
Foreign References:
| JP2016086327A | 2016-05-19 | |||
| JPH0950918A | 1997-02-18 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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