本論文內討論0.9CaWO4-0.1Mg2SiO4介電陶瓷材料，分別添加燒結促進劑V2O5、B2O3、及CuO不同含量時，產生的液相對其微波特性之影響。實驗結果顯示，適當添加燒結促進劑可降低0.9CaWO4-0.1Mg2SiO4之燒結溫度。當添加0.25wt%之V2O5時有最佳的微波介電特性，其εr 值為約10，Q*f值約為70000，共振頻率溫度係數（τf）約為-53（ppm/oC），並可將燒結溫度由1200℃降低至1080℃。
　　另外，本論文以FR4、Al2O3、0.9CaWO4-0.1Mg2SiO4為基板，製作設計一使用增強型調整殘段耦合環型共振器之帶通濾波器，其中心頻率為2.45GHz，頻寬約為5％。利用軟體模擬並與實作的結果作特性上之比較。

　　The effects of microwave dielectric properties of 0.9CaWO4-0.1Mg2SiO4 adding different amounts of sintering aids V2O5, B2O3, and CuO which could produce liquid phase have been discussed in this paper. The results show that adding sintering aids can lower the sintering temperature of 0.9CaWO4-0.1Mg2SiO4 ceramics. The best properties of the microwave dielectric are εr = 10, Q*f = 70000, and τf = -53, as 0.25wt％ V2O5　additions. And lower the sintering temperature from 1200℃ to 1080℃.
　　In addition, a bandpass filter using ring resonators with enhanced-coupling tuning stubs on FR4, Al2O3, and 0.9CaWO4-0.1Mg2SiO4 substrates have been design. The center frequency is 2.45GHz, the bandwidth is 5％. And we compared the result of the simulation with the result of the measurement of the performance.

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