本篇論文主要分別介紹三大部分，第一和二部分將介紹新開發的微波介電材料;第三部分將設計一個濾波器使用在FR4、Al_2 O_3以及0.99Na_2 (Mg_4.93 Zn_0.07 ) (MoO_4 )_6-0.01TiO_2三種不同基板上，進而分析其模擬與實測的結果。
首先，第一部分將會介紹 (Mg1-xZnx)V2O6 (x=0–0.09)陶瓷之微波介電特性，由實驗結果發現，在燒結溫度為610℃、x=0.07持溫4小時下，可得到最佳的微波介電特性ε_r~9.3、Q×f~15,300 GHz、τ_f~-3.4 ppm⁄℃ ; Na2(Mg5-xZnx)(MoO4)6 (x= 0–0.09) 陶瓷之微波介電特性，由實驗結果發現，在燒結溫度為570℃、x=0.07持溫4小時下，可得到最佳的微波介電特性ε_r~7.6、Q×f~46,000 GHz、τ_f~-25.4 ppm⁄℃。
第二部分為添加少量TiO_2使材料之τ_f趨近於0，探討此材料(1-x)Na2(Mg4.93Zn0.07)(MoO4)6 -xTiO2 (x=0.5–1.5 mol%)陶瓷之微波介電特性，由實驗結果可以發現，當燒結溫度為570℃、x=1.0%的0.99Na2(Mg4.93Zn0.07)(MoO4)6 -0.01TiO2擁有最趨近於0ppm⁄℃的τ_f，而其微波介電特性ε_r~8.8、Q×f~33,100 GHz、τ_f~-4.29 ppm⁄℃ 。
最後，第三部分使用HFSS模擬濾波器電路，並將模擬出的電路實作於FR4、Al_2 O_3以及0.99Na2(Mg4.93Zn0.07)(MoO4)6 -0.01TiO2三種不同的基板上，由結果互相比較可以發現，低介電損耗的陶瓷材料能增加濾波器的表現，而較高的Q×f值則可以提高濾波器在頻率選擇上的表現。

A novel ultra-low-firing microwave dielectric ceramics of (Mg1-xZnx)V2O6 and Na2(Mg5-xZnx)(MoO4)6 (x= 0–0.09) were investigated as potential materials for Ultra-Low-semperature Co-fired Ceramics(ULTCC) . Both materials were synthesized using the solid state reaction. The experimental results show that the ceramics (Mg0.93Zn0.07)V2O6 has best microwave dielectric properties ε_r~9.3, Q×f~15,300 GHz and τ_f~-3.4 ppm⁄℃ when sintered at 610℃ for 4 hours﹔the ceramics Na2(Mg5-xZnx)(MoO4)6 has best microwave dielectric properties ε_r~7.6,Q×f~46,000 GHz and τ_f~-25.4 ppm⁄℃ when sintered at 570℃ for 4 hours and the ceramics 0.99Na2(Mg4.93Zn0.07)(MoO4)6 -0.01TiO2 has best microwave dielectric properties ε_r~8.8,Q×f~33,100 GHz and τ_f~-4.29 ppm⁄℃ when sintered at 570℃ for 4 hours.
Moreover, the band-pass filter with Square open-loop resonator which contains Open-stub was made into the substrate in this paper. According to the results of measurements, the performance of the filter was improved by using low-loss dielectric ceramics as the substrate, and its wave propagation delay of devices for high frequency applications was decreased by using low dielectric constant ceramics and using high Qxf values ceramics can improve the frequency selection of the filters.

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