| 摘要 |
PROBLEM TO BE SOLVED: To obtain a non-reciprocal circuit element that effectively prevents displacement of a ferrite/magnet element which occurs during soldering so as to achieve improvement in soldering reliability and to maximally suppress variations in characteristics. SOLUTION: The non-reciprocal circuit element is configured such that a ferrite/magnet element 30 is solder-mounted on a circuit board 20. The ferrite/magnet element is formed by integrating permanent magnets 41 with a ferrite 32 applied with a DC magnetic field by the permanent magnets 41. The ferrite 32 includes a first central electrode and a second central electrode. The surface of the circuit board 20 includes an input terminal electrode 25 to which an electrode at one end part of the first central electrode is soldered, an output terminal electrode 26 to which an electrode at the other end part of the first central electrode and an electrode at one end part of the second central electrode are soldered, and a ground terminal electrode 27 to which an electrode at the other end part of the second central electrode is soldered. The input terminal electrode 25 is extended not only in a y direction but also in a y' direction opposite to the y direction. COPYRIGHT: (C)2010,JPO&INPIT
|
