A new ultra wideband fractal antenna

Advanced communication systems require small size and wideband antennas. Fractals have unique properties such as self-similarity and space-filling therefore, antenna designers use fractal geometry in multi-band and broad-band antennas designing. In this paper I have achieved an ultra wideband antenna by applying a new fractal geometry to a wire square loop antenna and choosing appropriate size and feed location. Modelling and simulation are performed via SuperNEC electromagnetic simulator. Results of simulation show that the suggested design is a broad-band antenna which is applicable in dual bandwidths including 7.5-14.5 GHz and 17.5-37 GHz. Radiation patterns are also studied.