Title:
IRREVERSIBLE CIRCUIT ELEMENT, IRREVERSIBLE CIRCUIT MODULE, FRONT-END CIRCUIT AND COMMUNICATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/020801
Kind Code:
A1
Abstract:
An irreversible circuit element (1) is mounted on a surface (50a) of a mounting board (50). The irreversible circuit element (1) is provided with a permanent magnet (30), a ferrite (40), and a first yoke (10) provided between the ferrite (40) and the mounting board (50). The ferrite (40) comprises a central conductor part (41) formed on one principal surface (40a), and an extraction conductor part (42) extracted from the central conductor part (41), the central conductor part (41) has an LC component, the first yoke (10) comprises an input/output conductor part (11) connected to the extraction conductor part (42), and a ground conductor part (12) disposed close to the input/output conductor part (11) with a predetermined space (i1) therebetween, the ground conductor part (12) is connected to a ground pattern (52), the input/output conductor part (11) is connected to a transmission line pattern (51), and a millimeter-waveband high-frequency signal is inputted to and outputted from the input/output conductor part (11) via the transmission line pattern (51).
Inventors:
OKAJIMA SHINGO (JP)
Application Number:
PCT/JP2017/019264
Publication Date:
February 01, 2018
Filing Date:
May 23, 2017
Export Citation:
Assignee:
MURATA MANUFACTURING CO (JP)
International Classes:
H01P1/387
Foreign References:
| JPH09116309A | 1997-05-02 | |||
| JP2004015430A | 2004-01-15 | |||
| JP2000124710A | 2000-04-28 |
Attorney, Agent or Firm:
YOSHIKAWA, Shuichi et al. (JP)
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