Formulation and Validation of Iterative Method in Time Domain

An efficient iterative method based on the concept of waves is presented to determine the characteristics of mm-wave of a planar waveguide. The analysis takes into account the effects of the imperfect conductor. A two dimensional fast Fourier transformation algorithm is introduced to simplify calculations and accelerate the convergence with reduced central processing unit time. The general formulation and implementation procedure of the method are described. The temporal contribution of the iterative method is used to analyse the same structure, this lets the formulation of iterative method in frequency domain valid in the temporal domain i.e. iterative process, expressions of diffraction operations, the different domains existing in the structure, boundaries conditions. The only variation is the excitation of the source according to the time. The idea is therefore to keep the same process used for frequency domain while bringing some modifications. A program in FORTRAN language is proposed to apply this iterative method on nonlinear transmission line. To validate this program in temporal domain, a nonlinear transmission line is studied: a linear transmission line in which some varactor diodes are injected. The latter plays the role of a variable capacity according to tension