Characterization of a quasi-optical NbN superconducting HEB mixer

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	Characterization of a quasi-optical NbN superconducting HEB mixer
	Jiang, Ling ; Miao, Wei ; Zhang, Wen; Li, Ning ; Lin, Zhen Hui ; Yao, Qi Jun ; Shi, Sheng-Cai; Svechnikov, Sergey I.; Vakhtomin, Yury B.; Antipov, Sergey V.
刊名	IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
	2006-07-01
卷号	54 期号:7 页码:2944-2948
关键词	Allan variance conversion loss 4-K close-cycled cryocooler noise temperature superconducting hot-electron bolometer (HEB) mixer
ISSN号	0018-9480
英文摘要	In this paper, the performance of a quasi-optical NbN superconducting hot-electron bolometer (HEB) mixer, cryogenically cooled by a close-cycled 4-K refrigerator, is thoroughly investigated at 300, 500, and 850 GHz. The lowest receiver noise temperatures measured at the respective three frequencies are 1400, 900, and 1350 K, which can go down to 659, 413, and 529 K, respectively, after correcting the loss and associated noise contribution of the quasi-optical system before the measured superconducting HEB mixer. The stability of the quasi-optical superconducting HEB mixer is also investigated here. The Allan variance time measured with a local oscillator pumping at 500 GHz and an IF bandwidth of 110 MHz is 1.5 s at the dc-bias voltage exhibiting the lowest noise temperature and increases to 2.5 s at a dc bias twice that voltage.
学科主题	Engineering
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Electrical & Electronic
研究领域[WOS]	Engineering
收录类别	ISTP ; SCI
语种	英语
WOS记录号	WOS:000239163500007
公开日期	2012-02-07
内容类型	期刊论文
源URL	[http://159.226.72.40/handle/332002/3566]
专题	紫金山天文台_毫米波和亚毫米波技术实验室
作者单位	1.Chinese Acad Sci, Purple Mt Observ, Natl Astron Observ, Nanjing 210008, Peoples R China 2.Chinese Acad Sci, Grad Sch, Nanjing 210008, Peoples R China 3.Moscow State Pedag Univ, Dept Phys, Moscow 119992, Russia
推荐引用方式 GB/T 7714	Jiang, Ling,Miao, Wei,Zhang, Wen,et al. Characterization of a quasi-optical NbN superconducting HEB mixer[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES,2006,54(7):2944-2948.
APA	Jiang, Ling.,Miao, Wei.,Zhang, Wen.,Li, Ning.,Lin, Zhen Hui.,...&Gol'tsman, Gregory N..(2006).Characterization of a quasi-optical NbN superconducting HEB mixer.IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES,54(7),2944-2948.
MLA	Jiang, Ling,et al."Characterization of a quasi-optical NbN superconducting HEB mixer".IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES 54.7(2006):2944-2948.