Determination of propagation constant using 1D-FDTD with MATLAB

This report mainly concentrates on determination of propagation constant of a planar transmission lines such as Microstrip line and coplanar wave guide (CPW) by 1D-FDTD using conventional MATLAB code. Apart from that, this article presents study of basic phenomenon like reflection at an interface between two media, and design of material absorbers. The fields Ey and Hz are simulated along the line Y=Z=0 i.e. propagation along X-axis. Implementation of source (Gaussian pulse, sinusoidal) and effects of various boundaries such as Mur ABC, PML on incident/scattered/total fields are investigated. Also presented a comparison plot of phase constant by using CST microwave studio and MATLAB.