Abstract
In this paper, we developed and investigated superconducting integrated circuits designed to match the impedances of a generator represented by a flux-flow oscillator based on a long Josephson junction and a detector based on a superconductor–insulator–superconductor tunnel junction in the subterahertz frequency range. The structures were modeled using the transfer matrix method. Designs were also calculated in the program of numerical three-dimensional modeling. A qualitative agreement was found between the results obtained by two methods. Three samples with different topologies were designed, covering the frequency range of 250–680 GHz at a level of –2 dB.
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ACKNOWLEDGMENTS
The authors are grateful for access to the equipment of the unique scientific unit “Cryointegral” (no. 352529), supported under the agreement of the Ministry of Science and Higher Education of the Russian Federation (RF-2296.61321X0041); the equipment was used in the manufacturing of samples and measurements.
Funding
The development of the manufacturing technology, the manufacture of samples, and the experiment were supported by the Russian Science Foundation, grant no. 23-79-00019, https://rscf.ru/project/23-79-00019/. Numerical calculations were supported by the state task at Kotelnikov IREE, RAS.
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The study was awarded a prize at the 19th Ivan Anisimkin Young Scientists Competition.
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Khan, F.V., Atepalikhin, A.A., Filippenko, L.V. et al. Design of Superconducting Integrated Matching Circuits. J. Commun. Technol. Electron. 68, 1219–1222 (2023). https://doi.org/10.1134/S1064226923100066
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DOI: https://doi.org/10.1134/S1064226923100066