Title:
非可逆回路素子、その製造方法及び通信装置
Document Type and Number:
Japanese Patent JP4380769
Kind Code:
B2
Abstract:
A non-reciprocal circuit element is equipped with a ferrite-magnet assembly which includes a pair of permanent magnets and a ferrite(32) sandwiched between the permanent magnets. A first center electrode(35) and a second center electrode(36) defined by conducting films are provided on principal surfaces(32a, 32b) of the ferrite(32), such that the first center electrode(35) and the second center electrode(36) are insulated from each other and intersect each other. The permanent magnets have principal surfaces having substantially the same shape as the principal surfaces(32a, 32b) of the ferrite(32). The ferrite(32) has upper and lower surfaces(32c, 32d) provided with recesses. The recesses have a conductor material embedded therein, whereby intermediate electrodes(35a, 36b, 36f, 36j, 36m, 36d, 36h, 361) and connector electrodes(35b, 35c, 36p) are provided.
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Inventors:
Takashi Kawanami
Application Number:
JP2007513525A
Publication Date:
December 09, 2009
Filing Date:
September 29, 2006
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01P1/36; H01P11/00
Domestic Patent References:
| JP10032407A | ||||
| JP2006311455A | ||||
| JP2002076711A |
Foreign References:
| WO2006011383A1 | ||||
| GB1247933A |
Attorney, Agent or Firm:
Takeichi Morishita
Tani Kazuhiro
Tani Kazuhiro