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题名: Parametric Amplification in a Superconducting Microstrip Transmission Line
作者: Shan, Wenlei1, 2; Sekimoto, Yutaro2; Noguchi, Takashi2
刊名: IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
出版日期: 2016-09-01
卷号: 26, 期号:6
关键词: Finite-difference methods ; microstrip ; parametric amplifiers (PAs) ; shock waves ; superconducting transmission lines
DOI: 10.1109/TASC.2016.2555914
文章类型: Article
英文摘要: Broadband parametric amplifiers (PAs), which utilize the nonlinear kinetic inductance of superconducting transmission lines, provide new access to ultimate sensing capability for radio astronomical observation and microwave quantum electronics. In this paper, the parametric amplification is investigated with a time-domain numerical method. The results present direct images of the traveling waves, which clarify the distinctively different features of the parametric gain in uniform and impedance-perturbed nonlinear transmission lines. The results indicate that the traveling-wave PAs (TWPAs) are susceptible to impedance mismatching because of the lack of isolation between the input and the output ports. In the experimental part of this paper, we tested, for the first time, microstrip TWPAs based on NbTiN. A parametric gain was observed at liquid helium temperature.
WOS标题词: Science & Technology ; Technology ; Physical Sciences
类目[WOS]: Engineering, Electrical & Electronic ; Physics, Applied
研究领域[WOS]: Engineering ; Physics
关键词[WOS]: AMPLIFIER ; MICROWAVES ; JUNCTIONS ; NOISE ; BAND
收录类别: SCI
项目资助者: National Natural Science Foundation of China(U1331203)
语种: 英语
WOS记录号: WOS:000379602100001
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/16245
Appears in Collections:毫米波和亚毫米波技术实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Purple Mt Observ, Nanjing 210008, Jiangsu, Peoples R China
2.Natl Astron Observ Japan, Tokyo 1818588, Japan
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