Abstract
A model calculation of a two-wire Josephson transmission line with a quasi-transverse electromagnetic wave is performed. The dispersion characteristics of the wave are estimated. The group velocity is shown to be (4.1–2.5)·107 m/s for a temperature of 76–85.9 K, a critical current of 109 A/m2, a dielectric plate thickness of 10 μm, and a relative permittivity of 40. The wave attenuation in this temperature range is ≤2 db/dm at a frequency of 10 GHz. The rough estimates suggest the feasibility of designing microstrip transmission lines based on granular high-temperature superconducting films. These lines will provide delays up to 1 μs and picosecond pulse transmission.
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Krakovskii, V.A. High-Temperature Superconducting Microstrip Transmission Lines. Russian Physics Journal 45, 955–961 (2002). https://doi.org/10.1023/A:1022854631375
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DOI: https://doi.org/10.1023/A:1022854631375