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Nb-based SIS mixer in the 800 GHz band
Noguchi, T; Maezawa, H; Shi, SC; Yamamoto, S
AbstractWe have built a waveguide SIS mixer with Nb-based parallel-connected twin junctions at 800 GHz which is above the gap frequency of Nb (690 GHz). Heterodyne mixing was performed at 810 GHz and a receiver noise temperature of 580 K (DSB), which includes noise contributions due to a vacuum window and a beam splitter, was achieved using Nb/AlOx/Nb junctions with Nb striplines, The performance of this mixer is quite good and it is shown that efficient mixing in Nb-based SIS junctions is still possible above the gap frequency, SIS mixers with Al striplines have also been fabricated and good DC I-V characteristics have been observed. Heterodyne measurements of these mixers are now under preparation.
KeywordGap Energy Niobium Sis Mixer Submillimeter Waves
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
Indexed ByISTP ; SCI
WOS Research AreaEngineering ; Physics
WOS SubjectEngineering, Electrical & Electronic ; Physics, Applied
WOS IDWOS:000168285400030
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Document Type期刊论文
Affiliation1.Nobeyama Radio Observ, Minamisa Ku, Nagano 3841305, Japan
2.Univ Tokyo, Dept Phys, Tokyo 1130033, Japan
3.Purple Mtn Observ, Nanjing 20008, Peoples R China
Recommended Citation
GB/T 7714
Noguchi, T,Maezawa, H,Shi, SC,et al. Nb-based SIS mixer in the 800 GHz band[J]. IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,2001,11(1):167-170.
APA Noguchi, T,Maezawa, H,Shi, SC,&Yamamoto, S.(2001).Nb-based SIS mixer in the 800 GHz band.IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY,11(1),167-170.
MLA Noguchi, T,et al."Nb-based SIS mixer in the 800 GHz band".IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY 11.1(2001):167-170.
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