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Performance prediction of superconducting transmission lines using an improved two-fluid model

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1 Author(s)
Eleiwa, M.A.H. ; Egyptian Armed Forces, Egypt

The two-fluid model, coupled with London equations, which account for both perfect conductivity and perfect diamagnetism, is used to yield the classical model of superconductivity. The classical model fails at temperatures close to the critical temperature. Therefore, this paper suggests an improved model, in which the temperature dependence of the superconducting parameters, are evaluated using Ginzburg-Landau theory, only near Tc. The improved model is then applied to characterize high Tc superconductors; YBCO, for example. The improved model is verified by comparing the calculated parameters for different superconductors with the corresponding published data. The model is then used to predict the performance of superconducting TEM transmission lines. The analysis reveals how the superconducting lines are advantageous over their ohmic (copper, for example) counterparts because they not only reduce signal attenuation but also allow dispersionless wave propagation

Published in:

Radio Science Conference, 1998. NRSC '98. Proceedings of the Fifteenth National

Date of Conference:

24-26 Feb 1998