DefinePK

Abstract

In many commercial and defense communication systems, there is a need of compact antennas with high performance, considerable gain and compactness in size. The modern communication systems need such antennas which operates at multiband with wide bandwidth. One of the technique to satisfy that needs is the implementation of fractal geometry on the microstrip antenna radiator. It has been proved that fractal antennas have their own unique characteristics without changing the antenna properties. In the current paper, the performance of the microstrip patch antenna with Sierpinski gasket fractals as inverted triangles has been presented. The base antenna without fractals has been designed at 8.45GHZ operating frequency. As the base antenna offers narrow band width with single resonant frequency, triangular fractal geometry was implemented on the patch up to the second iteration to improve the gain and wide band width at multi bands. The fractal antenna characteristics are analyzed at each iteration by using electromagnetic simulator HFSS 13.