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题名: Characterization of the IF Bandwidth of an All-NbN Superconductor-Insulator-Superconductor Mixer
作者: Liu Dong(刘冬)1, 2, 3; Li Jing(李婧)1, 2; Wang Zheng(王争)1, 2; Yao, M.3; Hu, J.3; Shi, S. C.1, 2
刊名: IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
出版日期: 2013-06-01
卷号: 23, 期号:3
关键词: Intermediate-frequency (IF) bandwidth ; submillimeter ; superconducting ; superconductor-insulator-superconductor (SIS) mixer ; tunneling junction
DOI: 10.1109/TASC.2012.2237493
文章类型: Article
英文摘要: Large intermediate-frequency (IF) bandwidth is of particular interest for heterodyne mixers, especially for those at THz frequencies. NbN superconductor-insulator-superconductor (SIS) junctions, with a gap frequency twice that of Nb, can be applied to mixers beyond 1 THz. The IF bandwidth of NbN SIS mixers, however, is yet to be fully understood. In this paper, we investigate the IF bandwidth of a 0.5 THz all-NbN SIS mixer. First, its IF bandwidth is numerically simulated in terms of the mixer conversion efficiency and time constant. Second, the mixer noise performance is experimentally characterized in the IF band of 0.5 similar to 12 GHz. Detailed theoretical simulation and experimental results will be presented.
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]: NOISE ; RECEIVERS
收录类别: SCI
语种: 英语
WOS记录号: WOS:000318867100012
Citation statistics:
内容类型: 期刊论文
URI标识: http://libir.pmo.ac.cn/handle/332002/15518
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, Peoples R China
2.Key Lab Radio Astron, Nanjing 210008, Peoples R China
3.Chinese Acad Sci, Grad Sch, Beijing 10040, Peoples R China
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