公开(公告)号：US20020039555A1

公开(公告)日：2002-04-04

申请号：US09931495

申请日：2001-08-16

申请人： Murata Manufacturing Co., Ltd.

发明人： Tatsuya Matsunaga ,  Hiroshi Marusawa

IPC分类号： C01G049/00 ,  C01F017/00

CPC分类号： H01F1/346 ,  C04B35/2675

摘要： As a magnetic material for high frequencies provided in a high-frequency circuit component used as a high-frequency nonreciprocal circuit device, for example, a circulator and an isolator, a magnetic material which can be densely sintered at a relatively low temperature and has a reduced ferromagnetic resonance half width is provided. The magnetic material for high frequencies is primarily composed of yttrium iron-based garnet in which Ca substitutes for a part of Y site, and V substitutes for a part of Fe site, and does not substantially contain tetravalent nor pentavalent elements, other than V, or contains about 0.5% by weight or less of oxide of this element, and the ratio of Ca atoms to V atoms, Ca/V, falls within the range of 2.0

摘要翻译： 作为用作高频不可逆电路装置的高频电路部件（例如循环器和隔离器）中提供的高频磁性材料，可以在较低温度下致密烧结并具有 提供了减少的铁磁共振半值宽度。 用于高频率的磁性材料主要由钇铁基石榴石组成，其中Ca代替Y部位的一部分，V代替部分Fe部位，除V之外基本上不含有四价或五价元素， 或含有该元素的氧化物的约0.5重量％以下，Ca原子与V原子的比例Ca / V落在2.0