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- W2265631750 abstract "The microwave properties of La(Mg1/2Ti1/2)O3 dielectric ceramic materials are discussed in this paper. By adding different sintering aids B2O3、ZnO and CuO respectively, we study the existence effects of liquid phase for the microwave properties of La(Mg1/2Ti1/2)O3. The experiment results show that La(Mg1/2Ti1/2)O3 with 1wt% B2O3 addition can efficiently reduce sintering temperature from 1650 oC to 1425 oC, and we obtain that the dielectric properties are er~27.9，Q×f~63000(9GHz) and τf~-40(ppm/oC). Concerning about the negative value of τf , we choose adding the CaTiO3(+712(ppm/oC)) to adjust the value approaching to zero. At 1400 oC, 0.5La(Mg1/2Ti1/2)O3-0.5 CaTiO3＋1wt% B2O3 appears the best property: er~44, Q×f~29000(7GHz) andτf~-8(ppm/oC) . Hence, the microwave properties of La(Mg1/2Ti1/2)O3 dielectric ceramic materials is improved. In addition, we design and fabricate a third order compact elliptic function low-pass filters using microstrip stepped-impedance hairpin resonators with 2GHz 3dB cutoff frequency on FR4、Al2O3、La(Mg1/2Ti1/2)O3 substrate." @default.
- W2265631750 created "2016-06-24" @default.
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- W2265631750 creator A5085646929 @default.
- W2265631750 date "2003-06-14" @default.
- W2265631750 modified "2023-09-24" @default.
- W2265631750 title "La(Mg1/2Ti1/2)O3介電陶瓷之微波特性改善 及其應用" @default.
- W2265631750 hasPublicationYear "2003" @default.
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