Scattering by the Infinite Microstrip-Patch Array

The paper deals with the problem of electromagnetic scattering by the infinite rectangular microstrip-patch array. The boundary problem for Maxwell´s equations in stratified media is reduced to the electric field integral equation for the unknown surface current distribution on the patch in a unit cell of the grid. We inverse the vector differential operator in this equation and obtain a new system of integral equations of first kind for the unknown surface current on the patch. This system with weakly singular kernels is solved numerically, the collocation method with subsectional basis functions is used.