Title:
非可逆回路素子
Document Type and Number:
Japanese Patent JP4807457
Kind Code:
B2
Abstract:
A non-reciprocal circuit device includes a yoke that is small-sized, has a simple structure, has sufficient adhesive strength, and can achieve favorable performance characteristics. The non-reciprocal circuit device includes a planar yoke, permanent magnets, a ferrite to which a DC magnetic field is applied by the permanent magnets, and first and second center electrodes located on the ferrite. The planar yoke is located on the upper surface of the ferrite-magnet assembly through an adhesive layer. On the rear surface of the yoke, protrusions are arranged in a lattice manner, and the protrusions increase the adhesive strength and facilitate the flow of a high-frequency field generated from the second center electrode.
Inventors:
Jinsei Ishihara
Application Number:
JP2009534244A
Publication Date:
November 02, 2011
Filing Date:
August 22, 2008
Export Citation:
Assignee:
MURATA MANUFACTURING CO.,LTD.
International Classes:
H01P1/36
Domestic Patent References:
| JP2006135493A | 2006-05-25 |
Foreign References:
| WO2006011383A1 | 2006-02-02 |
Attorney, Agent or Firm:
Takeichi Morishita
Tani Kazuhiro
Tani Kazuhiro