Studying the effect of Building Block Shape on Sierpinski tetrahedron fractal antenna behavior using FDTD-equivalent electric circuits

this research aims to study the effect of the modification in the building block shape (bbs) on the frequency response of sierpinski three dimensional pre-fractal antenna using conventional circuit analysis. three different shapes of bbs's are used to build the antenna. the surface current is analyzed and compared for every bbs. a simple model was devised using the nodal analysis to provide an iterative method for calculating the distribution of currents and voltages for the antenna at every node. the antennas parameters such as y-parameter, input return loss (irl), delivered power and surface current are investigated at the first and third tuning frequencies to enhance the perspective of the bbs effect.