Calculation of Scattering from Square Metallic Cylinder Using Method of Moments

The Method of Moments (MoM) provides an effective approach for calculating scattered fields from square metallic cylinders and determining their Radar Cross Section (RCS). The implementation involves discretizing the cylinder surface into small segments, where each segment is modeled with basis functions to represent surface current distributions. Key computational steps include: generating a mesh grid across the cylinder surface, applying pulse basis functions for current approximation, and solving the electric field integral equation (EFIE) through matrix inversion techniques. The RCS calculation requires summing contributions from all segments using proper weighting functions, typically implemented through numerical integration methods. This methodology enables accurate prediction of radar signatures and supports the development of countermeasures for reducing detectability. The code implementation typically involves matrix assembly using Green's function kernels and employs techniques like conjugate gradient solvers for efficient computation of large-scale problems.