Analyzing the Wire Scatterer Using the Method of Moments with the Step Basis Functions

This paper presents the development of an algorithmic mathematical model that uses the method of moments with step basis functions, an explanation of its mathematical formulation, and the development of a computer code based on it for modeling straight scatterer wires. The following scattering characteristics are considered: current distribution (magnitude and phase), radar cross section and back scattering cross section. These results were compared with those published in other papers and obtained numerically with triangular and sinusoidal basis functions, analytically and experimentally. A good agreement between the compared results is shown and the possibility of using the developed code to analyze wire scatterer structures is demonstrated.