Time domain analysis of arbitrary thin-wire structures horizontally positioned above a layered half space

In this paper, a hybrid method combining time domain integral equation (TDIE) with finite difference time domain(FDTD) is presented to study scattering properties of arbitrary thin wire structure horizontally positioned above a layered half space. The time domain reflections of electromagnetic waves from layered half space are obtained by one dimensional FDTD method. Then, transient response of thin-wire induced by two excitation sources (original incidence and reflected wave) is achieved by employing TDIE. Numerical examples for thin wires with different structures are given and analysed.