A New Efficient Technique for Transient Scattering of Conducting Cylinders Illuminated by a TM-polarized Plane Wave

In this letter, the transient analysis of infinite conducting cylinders in free space is obtained by solving the time-domain electric field integral equation (TD-EFIE) via a time-domain method of moments (TD-MoM). The PEC cylinders with arbitrary cross section are illuminated by a transverse magnetic (TM)-polarized Gaussian plane wave. The temporal basis function is triangular, and the spatial basis function is rectangular. The two-dimensional Green´s function is employed to develop the TD-MoM formulation. Two different approximations are used to calculate the self-coupling terms of the impedance matrix. It is shown that the time convolution integrals and self-terms involved in the formulation can be evaluated analytically to increase the accuracy and the stability of the proposed technique.