在本篇論文中將探討Ca(Mg1/3Nb2/3)O3陶瓷材料系統的微波介電特性及材料的微結構 , 藉由正負頻率溫度係數的互補，使其達到平衡。
Ca(Mg1/3Nb2/3)O3 具有負的共振頻率溫度係數 , 我們選擇添加Ca0.8Sm0.4/3TiO3 及(Ca0.61Nd0.26)TiO3來調整其τƒ。添加Ca0.8Sm0.4/3TiO3的材料以0.8Ca(Mg1/3Nb2/3)O3 – 0.2Ca0.8Sm0.4/3TiO3的介電特性較好εr~34，Q׃~35000GHz，τƒ~-3 ppm/oC，燒結溫度為1425℃。添加(Ca0.61Nd0.26)TiO3以0.6Ca(Mg1/3Nb2/3)O3–0.4(Ca0.61Nd0.26)TiO3的介電特性較好εr~47，Q׃~37000GHz，τƒ~6 ppm/oC , 燒結溫度為1375℃。
此外本論文還以FR4、Al2O3 及0.8Ca(Mg1/3Nb2/3)O3 -0.2Ca0.8Sm0.4/3TiO3作為基板來設計一微帶線帶通濾波器，濾波器的規格為:中心頻率 2GHz，並使用電磁模擬軟體IE3D來進行電腦模擬。

The microwave dielectric properties and the material microstructures of the Ca(Mg1/3Nb2/3)O3 ceramic system were investigated in this paper. By compensating for positive and negative temperature coefficient one. We achieved the balance.
Ca(Mg1/3Nb2/3)O3 with negative τƒ values. we added Ca0.8Sm0.4/3TiO3 and (Ca0.61Nd0.26)TiO3 to adjust τf value . The outcome reveals that the 0.8Ca(Mg1/3Nb2/3)O3 – 0.2Ca0.8Sm0.4/3TiO3 can be sintered at 1425oC and has the characteristics of εr ~ 34、 Q×f ~ 35000(GHz)、and τf value ~ -3ppm/oC.
0.6Ca(Mg1/3Nb2/3)O3 – 0.4(Ca0.61Nd0.26)TiO3 has the characteristics of εr ~ 47、Q׃ ~ 37000(GHz)、τƒ ~ 6ppm/oC can be sintered at 1375℃.
Finally, we design and fabricate band-pass filters with 2GHz center frequency on FR4、Al2O3、0.8 Ca(Mg1/3Nb2/3)O3 - 0.2Ca0.8Sm0.4/3TiO3 substrates respectively. And we compared with the results of the simulation and measurement.

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