Simple moment method program for computing scattering from complex cylindrical obstacles

摘要

The authors describe a moment method program for computing electromagnetic scattering (for both E- and H-polarisation) from multiple perfectly conducting and penetrable inhomogeneous cylinders. (The latter can be lossy and have both permittivity and permeability different from their free-space values.) The program is a numerical implementation of a recently derived volume-surface integral equation and uses the pulse expansion and point-matching technique. The main feature of this program is its simplicity in generating the model and transforming the integral equation into a linear system of equations. Using this program, the authors explore and demonstrate the usefulness as well as the limitations of the volume-surface integral equation formulation.