Hybrid method of linear system solution for matrix of electrostatic induction extraction a multconductor transmission line in the range of dielectric permittivity variation

The calculation of a series of matrices of electrostatic induction coefficients of a multiconductor transmission line by the method of moments is presented. To calculate the matrix in the range of dielectric permittivity, the hybrid method for solving a system of linear algebraic equations is proposed. The method is distinguished by the use of the block LU decomposition with the first matrix calculation using the direct method of linear system solution while the subsequent matrices are calculated by the iterative method. Computational evaluation is obtained using several mathematical packages and compared with analytical ones. The analysis of the test structure shows the prospects of the developed method.