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Author
Ozhegov, R. V.
;
Gorshkov, K. N.
;
Gol'tsman, G. N.
;
Kinev, N. V.
;
Koshelets, V. P.
Title
The stability of a terahertz receiver based on a superconducting integrated receiver
Type
Journal Article
Year
2011
Publication
Supercond. Sci. Technol.
Abbreviated Journal
Supercond. Sci. Technol.
Volume
24
Issue
3
Pages
035003
Keywords
SIS mixer, SIR, stability
Abstract
We present the results of stability testing of a terahertz radiometer based on a superconducting receiver with a SIS tunnel junction as the mixer and a flux-flow oscillator as the local oscillator. In the continuum mode, the receiver with a noise temperature of 95 K at 510 GHz measured over the intermediate frequency (IF) passband of 4-8 GHz offered a noise equivalent temperature difference of 10 ± 1 mK at an integration time of 1 s. We offer a method to significantly increase the integration time without the use of complex measurement equipment. The receiver observed a strong signal over a final detection bandwidth of 4 GHz and offered an Allan time of 5 s.
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RPLAB @ gujma @
Serial
705
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