Possibilities of Numerical Modeling of Nonlinear Phenomena in HTSC Waveguide Lines

The method of model decomposition for the numerical analysis of the nonlinear properties of HTSC waveguide lines is presented. The possibility of their implementation by means of the COMSOL Multiphysics package is illustrated. As an alternative, the possibility of three-dimensional modeling is analyzed with the phenomenological specification of nonlinear properties of linear characteristics of the line.