在本論文首先探討(Mg1-xMnx)2(Ti0.95Sn0.05)O4 ( x = 0.01 ~ 0.09)之微波介電特性，由實驗得知(Mg0.95Mn0.05)2(Ti0.95Sn0.05)O4在燒結溫度為1325℃持溫4小時擁有最佳微波介電特性：εr~ 14.22、Qxf = 347,000 GHz(at 11.72 GHz)、τf~ −57.94ppm/℃。為求τf~ 0的要求，添加三種具有正τf的材料 (La0.5Na0.5)TiO3 (τf~ +480 ppm/℃)、(Ca0.6La0.8/3)TiO3(τf~ +213 ppm/℃)、(Ca0.8Sr0.2)TiO3(τf~ +991 ppm/℃)。由實驗得知0.65(Mg0.95Mn0.05)2(Ti0.95Sn0.05)O4−0.35(Ca0.6La0.8/3)TiO3在燒結溫度為1325℃時持溫4小時擁有最佳微波介電特性：εr~ 24.88，Qxf ~ 133,000 GHz(at 9.04 GHz)而τf~ +0 ppm/℃。
此外，本論文以FR-4、Al2O3及實驗研製之0.65(Mg0.95Mn0.05)2(Ti0.95Sn0.05)O4−0.35(Ca0.6La0.8/3)TiO3為基板，製作一個步階阻抗共振器，利用Zeland-IE3D電磁模擬軟體並與實作的測量值比較，可獲得縮小濾波器的面積與較好的頻率響應結果。

The microwave properties of (Mg1-xMnx)2(Ti0.95Sn0.05)O4( x = 0.01 ~ 0.09) dielectric ceramic materials are discussed in this paper. The experimental results show that (Mg0.95Mn0.05)2(Ti0.95Sn0.05)O4 sintered at 1325℃ for 4 hours has the best microwave dielectric properties εr~ 14.22, Qxf ~ 347,000 GHz(at 11.72 GHz) and τf~ −57.94 ppm/℃. In order to adjust negative τf, (La0.5Na0.5)TiO3 (τf~ +480 ppm/℃)、(Ca0.6La0.8/3)TiO3(τf~ +213 ppm/℃)、(Ca0.8Sr0.2)TiO3(τf~ +991 ppm/℃)which has positive τf had been add. The experiment result showed that 0.65(Mg0.95Mn0.05)2(Ti0.95Sn0.05)O4−0.35(Ca0.6La0.8/3)TiO3 sintered at 1325℃ for 4 hours has the best microwave dielectric properties εr~ 24.88, Qxf ~ 133,000 GHz(at 9.04 GHz) andτf~ +0 ppm/℃.
In addition, a stepped-impedance resonator on FR-4, Al2¬O3 and 0.65(Mg0.95Mn0.05)2(Ti0.95Sn0.05)O4−0.35(Ca0.6La0.8/3)TiO3 are fabricated. The experimental measurements demonstrate the ceramic 0.65(Mg0.95Mn0.05)2(Ti0.95Sn0.05)O4−0.35(Ca0.6La0.8/3)TiO3 can be used for microwave applications because of their superior micro properties of low loss, small device area, high Qxf value and high relative dielectric constant substrate.

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