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Microwave Dielectric Properties for Ba(Mg1/3Ta2/3)O3–A(Mg1/2W1/2)O3 (A=Ba, Sr, and Ca) Ceramics
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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).
Title: Microwave Dielectric Properties for Ba(Mg1/3Ta2/3)O3–A(Mg1/2W1/2)O3 (A=Ba, Sr, and Ca) Ceramics
Description:
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).
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