الخلاصة:
Various methods of electromagnetic modeling of the circuits in millimeters waves and microwaves were developed, their goal is to obtain a more precise electromagnetic model, which makes it possible to gain not only in computing times but also in precision. For transmission lines planar, simple layer or multi-layer of dielectric, the method approved and used is the spectral method, this method is employed according to a choice of basic functions, which satisfies the conditions of singularity on the edge of the conductor, and this choice is a key factor in the process of convergence. In order to reach a compromise between the precision and the time computing and characterize the currents, longitudinal and transverse, we proposed a new Basis Functions with Strongly Decaying Properties
