本論文討論0.9Li2MgTi3O8-0.1Li2ZnTi3O8介電陶瓷，於1070℃燒結、時間4小時，其介電特性為 約26.5， 約61200(8.21GHz)， 約0.8(ppm/℃)。藉由添加不同燒結促進劑，探討產生的液相對其微波特性的影響。實驗結果顯示，添加0.5wt%的CuO可降低燒結溫度到980℃，此時可得介電特性 約27.98， 約32559 (8.53GHz)， 約-1.31 (ppm/℃)，添加1wt%的V2O5可降低燒結溫度到980℃，此時可得介電特性 約29.12， 約31108 (8.66GHz)， 約0.35 (ppm/℃)。另外，本論文以0.9Li2MgTi3O8-0.1Li2ZnTi3O8添加0.5wt%的CuO為基板，製作 一個雙模態帶通態濾波器，實作量測中心頻率為2.32(GHz)、頻寬為67.3%、插入損耗為1.7(dB)和返回損耗為20(dB)，且面積為FR4基板25%，證明本基板可應用於WIFI、藍芽、家用無線電話。

The microwave dielectric properties of the ceramic 0.9Li2MgTi3O8-0.1Li2ZnTi3O8 system were investigated in this thesis. Under the condition of sintering temperature of 1070℃ and sintering time of 4 hours, the ceramic dielectric had the properties of 26.5 for , 61200 GHz (measured at 8.21GHz) for and 0.8 ppm/℃ for . By adding 0.5wt% CuO, the sintering temperature of 0.9Li2MgTi3O8-0.1Li2ZnTi3O8 was lowered to 980℃ with the microwaves properties of 27.98 for , 32559 GHz for and -1.31ppm/℃ for . By adding 1wt% V2O5, the sintering temperature was lowered to 980℃ with the microwaves properties of 29.12 for , 31108 GHz for and 0.35ppm/℃ for . A dual-mode bandpass was made on the substrate of 0.9Li2MgTi3O8-0.1Li2ZnTi3O8 with aid of CuO. The measured results showed the center frequency was 2.32 GHz, fractional bandwidth 67.3%, insertion loss 1.7 dB and return loss 20 dB. The area of the filter was 75% less than that made on FR4. This work demonstrated 0.9Li2MgTi3O8-0.1Li2ZnTi3O8 with the aid of CuO had excellent microwave properties.

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