Characteristic Basis Function Method

An efficient technique for solving large electromagnetic problems, called Characteristic Basis Function Method (CBFM), is presented. It is a rigorous technique, based on Method of Moments (MoM), which can solve electrically very large problems using less computer resources than MoM. The key step in the CBFM consists of defining a relatively small number of high-level Characteristic Basis Functions (CBFs) to represent the induced currents on the surface of the problems. The advantages in terms of computational improvements and in the reduction of the complexity of the problems are showed for different kind of problems. Several results and computational analysis are presented in order to illustrate the accuracy and the benefits of the technique.

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