Title :
An analytical technique for calculating the surface impedance by using an approximate model of the current distribution in a superconducting thin film
Author :
Taha, T.E. ; Gomaa, A.M. ; El-Kordy, M.F.
Author_Institution :
Fac. of Electron. Eng., Menoufia Univ., Egypt
Abstract :
In this paper, an approximate analytical method for calculating the surface impedance of superconducting thin film is presented. This method is based on Maxwell´s equations, vector identities, Stoke´s theorem, Gauss´s theorem, differential operations in various coordinates and Poynting´s theorem analysis for an approximate model of the current distribution in a superconductor thin film. The physical basis for the approximate analytical treatment leading to the calculation of the surface impedance is described. The mathematical details of the calculation is also given. The obtained results are presented in analytical and graphical form. The computer simulation results are verified by comparison with results using surface impedance formula of Mattis-Bardeen theory
Keywords :
current density; current distribution; high-temperature superconductors; superconducting thin films; surface conductivity; Gauss theorem; Mattis-Bardeen theory; Maxwell equations; Poynting theorem analysis; Stoke theorem; analytical technique; approximate model; computer simulation; current distribution; differential operations; superconducting thin film; surface impedance; vector identities; Current density; Electromagnetic analysis; Electrons; Energy conservation; Gaussian processes; Maxwell equations; Superconducting materials; Superconducting thin films; Surface impedance; Temperature;
Conference_Titel :
Physics and Engineering of Millimeter and Sub-Millimeter Waves, 2001. The Fourth International Kharkov Symposium on
Conference_Location :
Kharkov
Print_ISBN :
0-7803-6473-2
DOI :
10.1109/MSMW.2001.946857
