无机材料学报

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移相器材料Zn、Ti、Sn替代锂铁氧体

冯全源; 陈伟; 任朗   

  1. 西南交通大学电磁所; 成都 100031
  • 收稿日期:1999-06-17 修回日期:1999-09-09 出版日期:2000-06-20 网络出版日期:2000-06-20

Phase Shifter Materials with Zn Ti Sn-subtituted Lithium Ferrites

FENG Quan-Yuan; CHEN Wei; REN Lang   

  1. Institute of Electromagnetic Field and Microwave Technology Soutnwest Jiaotong University Chengdu610031; China
  • Received:1999-06-17 Revised:1999-09-09 Published:2000-06-20 Online:2000-06-20

摘要: 为了研制高性能自动跟踪同步通信卫星相控天线阵中的移相器材料,采用普通陶瓷工艺,并加入微量杂质:Bi2O3、NiO、Co2O3和MnCO3,且利用氧气氛烧结制备了目前尚未见报道的铁氧体Li0.625Zn0.1Ti0.25Sn0.1Fe1.925O4.结果表明,该材料具有较高的居里温度和较低的介电损耗.并对锂铁氧体Li0.5(1-yZnyFe2.5(1-0.2yO4的微波特性进行了讨论.

关键词: 铁氧体移相器材料, 饱和磁化强度, 居里温度

Abstract: For Studying higy-property phase shifter materials in a phase array antenna of autotrack synchronous communication
satellites, lithium ferrite Li0.625Zn0.1Ti0.25Sn0.1Fe1.925O4 was prepared by using a standard ceramic flowing oxygen sintering technique
and adding some benificial materials such as MnCO3, Bi2O3 etc. The microwave properties of ferrite phase shifter materials Li0.5(1-y)ZnyFe2.5(1-0.2y)O4
were discussed. The measured results show that lithium ferrite Li0.625Zn0.1Ti0.25Sn0.1Fe1.925O4 possesses high Curie temperature and low dielectric loss.

Key words: ferrite phase shifter materials, saturation magnetization, Curie temperature

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