Improved high-Q microwave dielectric resonator using CuO-doped MgNb2O6 ceramics

Cheng Shing Hsu, Cheng Liang Huang, Jing Fang Tseng, Chi Yuen Huang

研究成果: Article同行評審

54 引文 斯高帕斯(Scopus)


The microwave dielectric properties and the microstructures of MgNb2O6 ceramics with CuO additions (1-4 wt.%) prepared with conventional solid-state route have been investigated. The sintered samples exhibit excellent microwave dielectric properties, which depend upon the liquid phase and the sintering temperature. It is found that MgNb2O6 ceramics can be sintered at 1140 °C due to the liquid phase effect of CuO addition. At 1170 °C, MgNb2O6 ceramics with 2 wt.% CuO addition possesses a dielectric constant (εr) of 19.9, a Q × f value of 110,000 (at 10 GHz) and a temperature coefficient of resonant frequency (τf) of -44ppm/°C. The CuO-doped MgNb2O6 ceramics can find applications in microwave devices requiring low sintering temperature.

頁(從 - 到)1091-1099
期刊Materials Research Bulletin
出版狀態Published - 2003 5月 26

All Science Journal Classification (ASJC) codes

  • 一般材料科學
  • 凝聚態物理學
  • 材料力學
  • 機械工業


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