侧馈电H型YBCO／YSZ高温超导天线的制备与微波特性  

PREPARATION AND MICROWAVE PROPERTIES OF SUPERCONDUCTING YBCO/YSZ MICROSTRIP H-SHARPE MINI-ANTENNAS BY SIDE-FEEDER

作　　者：程国生[1] 曹必松[1] 何艾生[1] 张雪霞 田玉珂[1] 王小平[1] 杨秉川[1] 张金仓[1] 

机构地区：[1]清华大学,河南师范大学物理系,北京工业大学基础部,中国有色金属研究总院

出　　处：《低温物理学报》1995年第4期300-304,共5页Low Temperature Physical Letters

摘　　要：首次采用超导化侧馈电方式和相应的匹配技术，用ＹＳＺ基片为衬底外延生长的ＹＢａ２Ｃｕ３Ｏｙ高温超导薄膜成功地制备了Ｈ型电小天线，获得了小尺寸，高效率的实验结果，在输入功率为１０ｍｗ的情况下，与同样的Ａｇ膜天线相比，其相对效率提高了１０ｄＢ左右．同时研究了两正交极化方向上相对效率的变化．给出了传输系数Ｓ２１和反射系数Ｓ１１的测试结果．为实现高温超导天线的实用化集成化提供了重要的实验资料．Abstract For the first time, by side-feeder and correspondence matching technology, the high-Tcsuperconducting YBCO/YSZ H-sharpe mini-antenna was successfully prepared with a smalldimensions and high radiation efficiency. The results show that for the 10mW input power.therelative radiation efficiency was improved about 10dB for the present mini-antenna in comparison to the silver antenna with the same structure and substrate material. The relative radiationefficiency in two orthographlcal palarization direction was measured,which show a typical chardcterization of direction dependence. The properties of transmision coefficient and reflection coefficient were also discussed.

关 键 词：YBCO YSZ 高温 超导体 天线 微波特性 

分 类 号：O511.9[理学—低温物理] TN925[理学—物理]