Fundamental Concepts of Electromagnetic Field Theory

The solution of many practical electromagnetic field problems can only be undertaken by applying numerical methods. Before such a solution can be undertaken, it is important that a correct mathematical model be established for the problem considered. Maxwell’s equations and the associated boundary conditions provide the necessary basis for the modelling of practical electromagnetic problems which are reviewed in this chapter. Further, as Green’s theorem, fundamental solutions, and equivalent sources are the basic tools used in some numerical techniques, they are also presented here.