ABSTRACT

The finite element method (FEM) requires, in general, the accomplishment of a sequence of steps, which if duly concluded leads to an accurate solution of the problem. These steps guide the reader searching a solution for an electromagnetic problem, and they may have, in some cases, specific nuances for different computational tools. This chapter presents these steps as appropriate to studies of electromagnetic phenomena. In order to obtain a solution for the electromagnetic problem using the FEM, the first measurement consists of characterizing the regions that constitute the device through one (or more) physical properties. Thus, for each finite element, physical properties associated with the phenomenon present on the device should be attributed. The FEM analysis consists, essentially, of the transformation of a system of differential equations describing an electromagnetic phenomenon in an equation system whose solution is close to the solution of a differential equations system at nodes in meshes of finite elements.