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26 August 2022 Millimeter-wave superconducting parametric amplifiers based on kinetic inductance
Peter K. Day, Nikita Klimovich, Shibo Shu, ByeongHo Eom, Henry G. LeDuc
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Proceedings Volume PC12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI; PC1219009 (2022) https://doi.org/10.1117/12.2629110
Event: SPIE Astronomical Telescopes + Instrumentation, 2022, Montréal, Québec, Canada
Abstract
The Kinetic Inductance Traveling-Wave Parametric Amplifier (KI-TWPA) has been demonstrating promise as a versatile amplifier that can provide wide instantaneous bandwidth, near quantum limited sensitivity and dynamic range high enough for use in a variety of practical applications including astronomical instruments. Until recently, work on these devices has concentrated on the microwave frequency range below about 10 GHz. Here will discuss a KI-TWPA design based on a microstrip transmission line that is compatible with operation throughout the millimeter-wave band. We present measurements characterizing nonlinearity and loss in the NbTiN microstrip lines used for the new KI-TWPAs as well as results on a waveguide-coupled implementation that shows gain in W-band in good agreement with a model calculation. This model suggests that wideband, quantum limited amplifiers operating up to several hundred GHz should be realizable.
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Peter K. Day, Nikita Klimovich, Shibo Shu, ByeongHo Eom, and Henry G. LeDuc "Millimeter-wave superconducting parametric amplifiers based on kinetic inductance", Proc. SPIE PC12190, Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy XI, PC1219009 (26 August 2022); https://doi.org/10.1117/12.2629110
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KEYWORDS
Amplifiers
Inductance
Superconductors
Astronomy
Microwave radiation
Waveguides
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