| BSTO/MgO铁电移相材料的研究 |
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| 引用本文： | 杨春霞,周洪庆,刘敏,吴红忠,梁斌斌,金宇龙.BSTO/MgO铁电移相材料的研究[J].电子元件与材料,2005,24(2):13-15. |
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| 作者姓名： | 杨春霞 周洪庆 刘敏 吴红忠 梁斌斌 金宇龙 |
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| 作者单位： | 1. 南京工业大学材料科学与工程学院,江苏,南京,210009
2. 南京电子技术研究所,江苏,南京,210013 |
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| 摘 要： | 采用固相反应法制备了钛酸锶钡/氧化镁(BSTO/MgO)铁电移相材料。研究了材料的相组成、显微结构和介电性能。经测试分析表明:MgO 与 BSTO 复合后,并没有出现二次相,且晶粒形状分布均一,粒度均匀;w(MgO)为 50%时,材料的低频(10 kHz)εr为 157,tgδ 为 0.000 6,高频(约 2.5 GHz)εr为 120,tgδ 为 0.008;4 000 V/mm偏压下的调谐性为 17.5%,基本上达到了相控阵移相器在高频下工作的要求。
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| 关 键 词： | 无机非金属材料 钛酸锶钡/氧化镁 铁电材料 移相器 介电性能 |
| 文章编号： | 1001-2028(2005)02-0013-03 |
Investigation of BSTO/MgO Ferroelectric Material for Phase Shift |
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| YANG Chun-xia,ZHOU Hong-qing,LIU Min,WU Hong-zhong,LIANG Bin-bin,JIN Yu-long.Investigation of BSTO/MgO Ferroelectric Material for Phase Shift[J].Electronic Components & Materials,2005,24(2):13-15. |
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| Authors: | YANG Chun-xia ZHOU Hong-qing LIU Min WU Hong-zhong LIANG Bin-bin JIN Yu-long |
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| Institution: | YANG Chun-xia1,ZHOU Hong-qing1,LIU Min1,WU Hong-zhong1,LIANG Bin-bin1,JIN Yu-long2 |
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| Abstract: | Barium strontium titanate/magnesia (BSTO/MgO) ferroelectric material for phase shift was prepared by traditional ceramic process-solid phase synthesis. The phase distribution、microstructure and electric properties were investigated. The results show that no secondary phase appears in the composites and the dimension of grains distributes uniformly. With 50wt% MgO content, εr and tgδ of the material are 157 and 0.000 6 respectively at10 kHz and εr is 120 and tgδ is 0.008 at about 2.5 GHz. Tunability reaches 17.5% with the external DC field 4 000 V/mm. It can find application in tunable microwave phase shifters. |
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| Keywords: | inorganic non-metallic materials barium strontium titanate/magnesia ferroelectric material phase shifter dielectric properties |
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