Discretizing the Currents
Discretizing the object or solution space is commonly referred to as meshing. It is a necessary step to solve the integral equations.
The equation for the discretized currents can then be substituted into the EFIE (Equation 1) to yield:
In Equation 2, the current coefficients represented by are the only unknown quantity.
Before proceeding to the next step, it is necessary to take a closer look at basis functions.