Near and far fields of scattering from finite bodies of perfect conductor: analyses by generalized multipole technique and others

In an examination of the equivalent source method and similar methods (generically called the generalized multipole technique), the authors investigate the effect of the edges of conducting wedges on the near field or the surface currents on the conducting scatterer. A finite conducting cylinder which is rotationally symmetric around the z-axis and whose edges along the circumferences on the top and bottom planes are rounded with a variable radius is considered as an example scatterer. The results obtained suggest the necessity of modifying the equivalent source method when it is applied to the far- and/or near-field calculations of three-dimensional scatterers with arbitrary shape.<>