On the Design of Wheel Shape Fractal Antenna

This paper presents the design of a wheel shaped multiband fractal Antenna. This Fractal antenna has been designed on substrate εr = 4.3 and thickness h = 1.53 mm. This new antenna has been fed with CPW – Fed. The antenna exhibits the multiband resonances due to selfsimilarity in antenna structure. The experimental results indicate that resonant frequencies occur at 1.34 GHz, 2.575 GHz, 4.22 GHz with impedance bandwidth of 40.77%, 19.02% and 26.94 % respectively. The first lower end resonant frequency of this antenna shifted to 1.0 GHz in comparison to 1.67 GHz resonant frequency of simple circular coaxially feed patch. This indicates the size reduction of the antenna. The experimental radiation pattern of antenna is similar at all resonant frequencies. Such type of antenna can be useful for mobile and wireless communication.