Design of a dual band crown fractal antenna

Advanced communication systems require antennas with more bandwidth and smaller dimensions compare to conventional antenna. There have been increasing demands for antenna design that possess features such as size, low profile, multiband, broadband, low cost etc. Fractal antennas have entered the view of many as a very promising solution. Fractals were the term originally defined by Mandelbrot to describe the family of complex structures, which means broken or irregular fragments that possess an inherent similarity in their geometrical structure. In this paper, we have proposed a crown fractal antenna. It has been observed that simulated and experimental results of the proposed antenna have shown dual band behavior. The same geometry had proposed initially, but the substrate material used was RT-DUROID while we used FR-4 substrate here, which reduces the cost.