Ricerc@Sapienza

The field scattered by truncated thin cylinders excited by arbitrarily oriented and polarized elementary electromagnetic sources is analyzed by means of the incomplete Hankel functions (IHFs). The currents excited on the cylinders and the related scattered fields are derived by solving electrical field integral equations (EFIEs) by means of the point-matching method of moments (MoM) using triangular basis functions. IHFs are employed so to express the electromagnetic field distribution in closed analytical form, thus allowing to obtain accurate numerical results.

The incomplete Hankel functions (IHFs) are employed to evaluate the scattered field from thin truncated cylinders excited by uniform plane waves or by arbitrarily oriented elemental current sources. Metallic and dielectric lossy structures are modeled by means of impedance boundary conditions (IBCs) including surface curvature effects. The scattering currents, expanded in triangular basis functions, are determined upon solving electrical field integral equations (EFIEs) by means of the point-matching method of moments (MoM).