Scattering by<i>N</i>parallel conducting circular cylinders

Abstract

Abstract The scattering pattern and back-scattering cross-section, due to an E-polarized plane wave incident on N circular parallel conducting cylinders in an arbitrary configuration, is computed by the boundary-value method. The results compare favourably for thin cylinders with an approximate solution based on an extension of the Karp–Russek technique for large separation between any two adjacent cylinders relative to the larger diameter. The results indicate that for broadside incidence and fixed radii and separation of an equi-spaced linear array of cylinders, the maximum back-scattering cross-section increases monotonically with an increasing number of cylinders. On the other hand, for normal incidence and fixed radii, the peak of the maximum back-scattering cross-section occurs at the same separation between the cylinders for any number of cylinders.