High-Q microwave dielectric in the (1 - x)MgTiO3-xCa0.6La0.8/3TiO3 ceramic system with a near-zero temperature coefficient of the resonant frequency

Cheng-Liang Huang, Shih Sheng Liu

研究成果: Article同行評審

15 引文 斯高帕斯(Scopus)

摘要

The microwave dielectric properties and microstructures of the new (1 - x)MgTiO3-xCa0.6La0.8/3TiO3 ceramic system, prepared using a mixed oxide route, were investigated. Combination of MgTiO3 (MT) and Ca0.6La0.8/3TiO3 (CLT) forms a two-phase system and leads to a near-zero τf. With increasing x, the microwave Q × f decreased and εr increased. A microwave dielectric material having a εr of 25.45, a Q × f of ~ 82,500 GHz (at 8.5 GHz), and a τf of ~ 0.5 ppm/°C can be obtained from the compound 0.85MgTiO3-0.15Ca0.6La0.8/3TiO3 sintered at 1275 °C for 4 h. It is proposed as a candidate material for ISM band components and GPS antennas.

原文English
頁(從 - 到)3205-3208
頁數4
期刊Materials Letters
62
發行號17-18
DOIs
出版狀態Published - 2008 六月 30

All Science Journal Classification (ASJC) codes

  • 材料科學(全部)
  • 凝聚態物理學
  • 材料力學
  • 機械工業

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