| BST薄膜高介电调谐率和低介电损耗的设计 |
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| 引用本文： | 蔡玉平,冯蒙丽,韩代朝. BST薄膜高介电调谐率和低介电损耗的设计[J]. 兵器材料科学与工程, 2010, 33(4): 53-55. DOI: 10.3969/j.issn.1004-244X.2010.04.015 |
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| 作者姓名： | 蔡玉平 冯蒙丽 韩代朝 |
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| 作者单位： | 军械工程学院,基础部,河北,石家庄,050003;军械工程学院,基础部,河北,石家庄,050003;军械工程学院,基础部,河北,石家庄,050003 |
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| 基金项目： | 军械工程学院科学研究基金资助项目 |
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| 摘 要： | 钛酸锶钡(BST)薄膜显著的介电非线性效应归因于Ti4+偏离氧八面体中心的位移。从BST薄膜的相变行为出发,讨论影响介电性的3种因素,即组分、电极材料和薄膜厚度,以期保持BST薄膜高介电调谐率的同时,获得低介电损耗,为最大限度地提高BST微波移相器的性能提供可能。
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| 关 键 词： | 铁电薄膜 介电非线性 微波移相器 |
High dielectric tunability and low dielectric loss of BST thin films |
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| CAI Yuping,FENG Mengli,HAN Daizhao. High dielectric tunability and low dielectric loss of BST thin films[J]. Ordnance Material Science and Engineering, 2010, 33(4): 53-55. DOI: 10.3969/j.issn.1004-244X.2010.04.015 |
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| Authors: | CAI Yuping FENG Mengli HAN Daizhao |
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| Affiliation: | CAI Yuping,FENG Mengli,HAN Daizhao(Department of Basic Courses,Ordnance Engineering College,Shijiazhuang 050003,China) |
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| Abstract: | Barium strontium titanate(BST) thin films have giant dielectric nonlinearity,which results from displacement of the Ti4+ from the center of the oxygen octahedron.From phase transition behaviors of BST thin films,three factors influencing dielectric nonlinearity were discussed,which are composition,electrode material and thickness of thin films.For its practical application in microwave phase shifters,it is desirable for dielectric BST thin films to maintain high dielectric tunability and have low dielectric... |
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| Keywords: | ferroelectric thin films dielectric nonlinearity microwave phase shifters |
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