Circular Sierpinski Fractal Antenna for Multiband Wireless Applications

摘要

A circular multiband fractal antenna is presented in this paper for multiband wireless applications. Sierpinski Gasket approach is used to make circular fractals of scaled dimensions. The fractal antenna has the multiband operation due to the self-similar property in fractal geometry. Fractal geometry leads to improved bandwidth, radiation efficiency and reduced size. The proposed antenna resonant frequencies are centred at 2.6 GHz, 4.8 GHz, 5.6 GHz, 6.3 GHz, 7 GHz, 8 GHz, 8.6 GHz and 9.2 GHz with at least 200 MHz bandwidth. Circular patch antenna is used as the basic geometry and 3 stages of iterations produced the proposed design. Radius of the base antenna is 24 mm.