Terahertz wave propagation characteristics of multi-modes on complexity microstrip-slot coupled lines

Abstract

The Terahertz (THz) technology field is currently a popular scientific topic. In this paper, the transmission characteristics of two coupled planar transmission lines (microstrip-double slot and double microstrip-slot coupled lines) are investigated via odd-mode excitation and even-mode excitation in the THz band. Furthermore, we study the attenuation constant and the effective refractive index of the two transmission lines under investigation. We have compared the propagation characteristics of THz pulses on microstrip-lines and coplanar strip-lines; we find very good agreement between the observed results.