Miniaturization of Antenna Using Fractals

The wireless industry is witnessing an volatile emergence today in present era. Today antenna systems demand versatility and unobtrusiveness. Operators are looking for systems that can perform over several frequency bands or are reconfigurable as the demands on the system changes. Some applications require the antenna to be as miniaturized as possible. Fractal plays a prominent role for these requirements. Fractals have non-integral dimensions and their space filling capability could be used for miniaturizing antenna size and their property of being self-similarity in the geometry leads to have antennas which have a large number of resonant frequencies. Fractal antennas also have Multiband performance is at non-harmonic frequencies. Fractal Euclidean geometries could be applied to shape Fractal antennas have improved Impedance, improved SWR(standing wave ratio) performance on a reduced physical area when compared to non of fractal antenna to make it to resonate at different frequency. In this paper Koch fractals with different iterations have been generated using MATLAB. Koch fractal of length 5.1c.m. With different iterations as a monopole antenna have been simulated using MATLAB and EZNEC code which is a MININEC code, and show the desirable advantages of fractal antennas. Different three iteration Koch fractal monopoles have been studied for GSM900 band.