Abstract
Microstrip elements are modeled in multilayered contribution. An iterative method based on the concept of waves is developed in a form useful for efficient computation for interacting microstrip elements, which may be located at any substrate layer and separated by a large distance. The multilayer contribution of iterative method is developed in the spatial domain. Examples for regularly shaped geometries in multilayered media are presented. These involve the optimization of a microstrip ring with a narrow gap which induces multiple reflections with a fixed phase correlation necessary to make the photonic band gap. The analysis takes into account eventual coupling parasites. Experimental measurements are performed to validate the computation. The approach involves the mixed magnetic and electric field equation technique and the wave concept iterative process which involves S-parameters extraction technique. In this sense, a program in FORTRAN has been elaborated to determine different parameters S-ij characterizing the studied structure. A good agreement between numerical and reported results is important to validate the theory of the multilayer contribution of iterative method MLC-WCIP.