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Direct Measurement of the Input RF Noise of Superconducting Hot Electron Bolometer Receivers
Miao, W.1,2; Zhang, W.1,2; Zhou, K. M.3,4; Zhang, K.1,2; Duan, W. Y.1,2; Yao, Q. J.1,2; Shi, S. C.1,2
2013-06-01
Source PublicationIEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
ISSN1051-8223
Volume23Issue:3Pages:2300104-2300104
Corresponding Author缪魏
AbstractA good understanding of input radio-frequency (RF) noise contribution is of particular importance to the development of high-sensitivity superconducting hot electron bolometer (HEB) receivers. In terms of simulation results based on the hot spot model, we found that the output noise of HEB mixers is nearly linearly decreased with the mixer's bath temperature when the HEB mixer is operated at its optimum DC-bias regime under appropriate local-oscillator signal pumping, and the effect of this decrease on the receiver output power can be well corrected. Thus, we used an intersecting lines technique to measure the input RF noise temperature of a quasi-optical superconducting NbN HEB receiver, and the measured input RF noise temperature of the HEB receiver is around 300 K at 850 GHz. For comparison, we also evaluated the losses and equivalent noise temperatures of the quasi-optical components in the RF signal path. The evaluated input RF noise temperature is found to be smaller than the measured one.
KeywordHot Spot Model Input Radio-frequency (Rf) Noise Intersecting Lines Technique Superconducting Hot Electron Bolometer (Heb) Receivers
Subject AreaEngineering ; Physics
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1109/TASC.2012.2229777
WOS KeywordSIS RECEIVERS ; MIXERS ; TELESCOPE
Indexed BySCI
Language英语
WOS Research AreaEngineering ; Physics
WOS SubjectEngineering, Electrical & Electronic ; Physics, Applied
WOS IDWOS:000314283800072
Citation statistics
Document Type期刊论文
Identifierhttp://libir.pmo.ac.cn/handle/332002/9800
Collection毫米波和亚毫米波技术实验室
Affiliation1.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, Purple Mt Observ, Key Lab Radio Astron, Nanjing 210008, Peoples R China
4.Chinese Acad Sci, Grad Sch, Beijing 10040, Peoples R China
Recommended Citation
GB/T 7714
Miao, W.,Zhang, W.,Zhou, K. M.,et al. Direct Measurement of the Input RF Noise of Superconducting Hot Electron Bolometer Receivers[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2013,23(3):2300104-2300104.
APA Miao, W..,Zhang, W..,Zhou, K. M..,Zhang, K..,Duan, W. Y..,...&Shi, S. C..(2013).Direct Measurement of the Input RF Noise of Superconducting Hot Electron Bolometer Receivers.IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,23(3),2300104-2300104.
MLA Miao, W.,et al."Direct Measurement of the Input RF Noise of Superconducting Hot Electron Bolometer Receivers".IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 23.3(2013):2300104-2300104.
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