Solution of some additional electromagnetic problems by the discrete convolution method

This report gives solution results and computer programs for the Discrete Convolution method applied to scattering from a helix, to radiation from planar array antennas with antenna elements arranged in triangular patterns (solved using one expansion function per element), and to radiation from planar array antenna with antenna elements arranged in triangular patterns (solved using three expansion functions per element). It also gives a brief discussion on the spatial domain interpretation of the spectral domain iteration technique.