本論文探討燒結促進劑對0.96(Mg0.95Co0.05)TiO3-0.04SrTiO3, 96MCST微波介電陶瓷的影響。使用液相燒結的方式添加燒結促進劑ZnO、B2O3及V2O5促使材料的緻密化，降低96MCST的燒結溫度。由實驗結果，添加 ％的ZnO於96MCST材料裡，可在1275oC時燒結，介電係數εr為20.8，品質因素(Q×f )為74000，共振頻率溫度係數τf為+2.3ppm/oC。與原來未添加燒結促進劑的材料比較(燒結溫度1400 oC)明顯降低燒結溫度。另外，以96MCST+ ％ZnO此材料為基礎製作基板，設計一交錯耦合雙頻f1=2.4, f2= 5.2GHz的橢圓濾波器，經模擬在f1與f2下，其 S21分別為-3dB與-3.8dB，頻寬分別為4%與5%。最後再設計此雙頻濾波器在FR4與AlO3的基板上來比較與驗證此材料96MCST+ ％ZnO具有良好的溫度穩定性、高介電係數εr及高品質因素(Q×f )。

　The effect of sintering aids, doped in the microwave dielectric ceramic with the ingredient of 0.96(Mg0.95Co0.05)TiO3-0.04SrTiO3, abbreviated 96MCST has been investigated in this thesis. By utilizing the effect of liquid phase, the sintering aids were mixed in 96MCST in order to promote to solid and to reduce the sintering temperature. As the outcome reveals, the specimen, 96MCST with 1wt% ZnO can sinter at 1275oC,and own the characteristic of dielectric constant εr 20.8, quality factor Q×f 72000, and temperature coefficient of resonant frequency τf +2.3ppm/oC. Conspicuously, compared to the pure material, sintering at 1400oC, the sinter temperature was reduced. Otherwise, the quasi-elliptic function filters, possessing a dual-passband response of the fundamental frequency f1 at 2.4GHz and the first higher-order resonant frequencies f2 at 5.2GHz, were meticulously implemented on the structure composed of 96MSCT and 1 wt% ZnO. After a series of sophisticated simulation and tangible realization, the responses at f1=2.4GHz and f2=5.2GHz respectively dominate S21 -3dB and -3.8dB, and bandwidth 4% and 5%. Ultimately, the dual-band filter was again circumspectly designed on the FR4 and AlO3 structure to substantially verify 96MCST+1wt% ZnO material occupying outstanding performances with stable temperature coefficient of resonant frequency, high dielectric constant, and excellent quality factor.

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