XXVI International Symposium "Nanophysics and Nanoelectronics", Nizhny Novgorod, March 14 - March 17, 2022
Superconductivity

Determining the parameters of the SIS-mixer at an intermediate frequency

Ya. O. Vodzyanovsky^ab, A. V. Khudchenko^ac, V. P. Koshelets<sup>ac

a</sup> Kotelnikov Institute of Radioengineering and Electronics of the Russian Academy of Sciences, Moscow, Russia
^b Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow Region, Russia
^c Astro Space Center, Lebedev Physical Institute, Russian Academy of Sciences, Moscow, Russia

Abstract: The level of signal reflection at an intermediate frequency from an SIS-mixer was calculated and experimentally measured. The measurement was performed for the mixer in operation, namely, it was biased by voltage and the signal of the local oscillator was applied. It is shown that the power reflection coefficient can vary from -20 to -3 dB depending on the operating point. An experimental method for determining the impedance of the supply line of the SIS-mixer is proposed and tested.

Keywords: superconductor-insulator-superconductor tunnel junction, intermediate frequency, submillimeter SIS-mixer.

Received: 29.04.2022
Revised: 29.04.2022
Accepted: 12.05.2022

DOI: 10.21883/FTT.2022.10.53078.42HH

Bibliographic databases:

•