Abstract
Yttrium Iron Garnet (YIG) has been used as an important material in the Circulator/Isolator
which is used in RF communication system, mobile phone, and satellite broadcasting, etc. In this
study, we investigated the variation of electromagnetic properties of YIG ferrites for
Isolator/Circulator application with Zr addition. The YIG ferrites,
Y2.1Ca0.9Fe4.4-xV0.5In0.05Al0.05ZrxO12 with x=0, 0.05, 0.1 and 0.2, were prepared by the conventional
ceramic sintering process. The Zr-substituted YIG ferrite, Y2.1Ca0.9Fe4.4-xV0.5In0.05Al0.05ZrxO12,
showed the highest saturation magnetization (1097 gauss) at x=0.1. Good microwave properties were
shown as isolation of 18.60 dB and insertion loss of 0.45 dB at x=0.2. In addition, the ferromagnetic
resonance (FMR) linewidth decreased as Zr content increased
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
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