Microwave Dielectric Properties for Ba(Mg1/3Ta2/3)O3–A(Mg1/2W1/2)O3 (A=Ba, Sr, and Ca) Ceramics
Microwave Dielectric Properties for Ba(Mg1/3Ta2/3)O3–A(Mg1/2W1/2)O3 (A=Ba, Sr, and Ca) Ceramics
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Ba(Mg1/3Ta2/3)O3–A(Mg1/2W1/2)O3（A=Ba、Sr 和 Ca）陶瓷的微波介电性能
DOI：
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发表时间：
1994
期刊：
影响因子：
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通讯作者：
A. Ochi
中科院分区：
文献类型：
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作者：
M. Furuya;A. Ochi
对于微波频率下的高 Q 介电谐振器，开发了复杂的钙钛矿结构 Ba(Mg1/3Ta2/3)O3–A(Mg1/2W1/2)O3 (A=Ba、Sr 和 Ca) 陶瓷。研究了A(Mg1/2W1/2)O3对Ba(Mg1/3Ta2/3)O3 (BMT)晶体结构、显微结构和微波特性的影响。 Ba(Mg1/2W1/2)O3 (BMW) 降低了 BMT 的谐振频率 (TCF) 温度系数。 Sr(Mg1/2W1/2)O3 (SMW) 和 Ca(Mg1/2W1/2)O3 (CMW) 增加了它。 BMT/BMW=95/5组合物获得零TCF。当 BMW 含量为 0.5 mol% 时，介电损耗质量 Q d 达到最大值（10 GHz 时为 40000）。
For a high-Q dielectric resonator at microwave frequencies, complex perovskite-structured Ba(Mg1/3Ta2/3)O3–A(Mg1/2W1/2)O3 (A=Ba, Sr, and Ca) ceramics have been developed. A(Mg1/2W1/2)O3 effects on the crystal structure, microstructure, and microwave characteristic of Ba(Mg1/3Ta2/3)O3 (BMT) were investigated. Ba(Mg1/2W1/2)O3 (BMW) decreased the temperature coefficient of resonant frequency ( TCF) for BMT. Sr(Mg1/2W1/2)O3 (SMW) and Ca(Mg1/2W1/2)O3 (CMW) increased it. Zero TCF was obtained for the BMT/BMW=95/5 composition. With 0.5 mol% BMW content, dielectric loss quality, Q d, reached a maximum (40000 at 10 GHz).