钡铁氧体薄膜自偏置毫米波环行器设计与制备(英文)  

Design and fabrication of self-biased millimeter wave circulator using barium ferrite thin films

作　　者：彭斌[1] 汪渊[1] 徐慧忠 张文旭[1] 张万里[1] 

机构地区：[1]电子科技大学电子薄膜与集成器件国家重点实验室,四川成都610054

出　　处：《红外与毫米波学报》2013年第4期294-297,共4页Journal of Infrared and Millimeter Waves

基　　金：Supported by the Fundamental Research Funds for the Central Universities(ZYGX2010J039);the Defense Pre-Research Foundation of China(9140A12020311DZ0202);the Program for NCET(NCET-12-0099)

摘　　要：基于厚度为10μm的钡铁氧体薄膜设计,制备了共面波导结构的毫米波薄膜环行器.这种薄膜环行器不需要外加磁体,在34 GHz和37.6 GHz显示出环行特性,其非互易效应大于15 dB.结果表明,采用共面波导结构可以实现薄膜环行器.这种薄膜环行器具有和单片微波集成电路集成的潜在应用.A millimeter wave film circulator with coplanar waveguide structure was designed and fabricated using barium ferrite films with thickness of 10 pm. The film circulator operates without external magnet and shows clear circulation at 34 GHz and 37.6 GHz. Circulation with non-reciprocal effect greater than 15 dB has been observed. The results show that circulator using very thin ferrite films can be realized with coplanar waveguide structure. The film circulator exhibits potential to be integrated with MMIC.

关 键 词：环行器 铁氧体薄膜 自偏置 共面波导 

分 类 号：TN61[电子电信—电路与系统]