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Observation of Frequency Up-Conversion Gain in SIS Junctions at W Band
- Source :
- Journal of Low Temperature Physics. 200:255-260
- Publication Year :
- 2020
- Publisher :
- Springer Science and Business Media LLC, 2020.
-
Abstract
- We have developed a test setup to measure frequency up-conversion gain in superconductor–insulator–superconductor (SIS) junctions at W band (75–110 GHz). A conventional SIS mixer with Nb/AlOx/Nb tunnel junctions was used as a frequency up-converter. An up-converted signal is measured by a room-temperature down-converter system. We observed distinct intermediate frequency responses to signal inputs from a continuous microwave source. The measured single-sideband up-conversion gain in SIS junctions was clearly positive (> 0 dB) with input frequency less than 2 GHz, which was well-calibrated by using an input from the continuous-wave source.
- Subjects :
- Physics
Test setup
business.industry
Measure (physics)
Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
Condensed Matter Physics
Signal
Atomic and Molecular Physics, and Optics
Optics
W band
Intermediate frequency
Condensed Matter::Superconductivity
Extremely high frequency
General Materials Science
Up conversion
business
Microwave
Subjects
Details
- ISSN :
- 15737357 and 00222291
- Volume :
- 200
- Database :
- OpenAIRE
- Journal :
- Journal of Low Temperature Physics
- Accession number :
- edsair.doi...........45e97661e4ef78420f8e9c0904455954