Title:
LAMINATED BALUN
Document Type and Number:
WIPO Patent Application WO/2019/003723
Kind Code:
A1
Abstract:
The purpose of the present invention is to adjust the frequency of an attenuation pole while maintaining the pass band of a laminated balun. The laminated balun (100) according to the present invention is provided with a first terminal (P1), a second terminal (P2), a third terminal (P3), a first inductor (L11), a second inductor (L13), and an open line conductor (171). The first inductor (L11) is connected between the first terminal (P1) and grounding points (G41-G43). The second inductor (L13) is connected between the second terminal (P2) and the third terminal (P3), and is magnetically coupled to the first inductor (L11). One end (T71) of the open line conductor (171) is an open end, and the other end (T72) of the open line conductor (171) is connected to a via conductor pattern (V61), which is a signal path between the first terminal (P1) and the grounding points (G41, G42).
Inventors:
SHIOKAWA NOBORU (JP)
Application Number:
PCT/JP2018/019622
Publication Date:
January 03, 2019
Filing Date:
May 22, 2018
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H03H7/42; H01F17/00; H01F27/00; H01P5/10; H03H7/09; H01P1/203
Domestic Patent References:
| WO2008068809A1 | 2008-06-12 |
Foreign References:
| JP2010021928A | 2010-01-28 | |||
| JP2006253877A | 2006-09-21 | |||
| JP2011124880A | 2011-06-23 | |||
| JP2007110271A | 2007-04-26 |
Attorney, Agent or Firm:
FUKAMI PATENT OFFICE, P.C. (JP)
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