OKDFNP: OPTIMIZATION FOR KOCH DIPOLE FRACTAL ANTENNA USING PSO

In this paper, simulation of PSO (Particle Swarm Optimization) based dipole fractal antenna at different UWB (Ultra Wide Band) frequencies is considered. The antenna design is based on PSO fed with KOCH dipole fractal antenna. Parametric analyses are calculated for the radiation pattern, return loss, power gain, and real, imaginary voltage impedance. The structure of the antenna is four directional star which helps in the improvement of directionality of the antenna along with the gain in power. Comparing the directivity of PSO with genetic algorithm helps in analysing PSO provides better directionality compared to GA along with reduction of Side lobes. The design and simulation work is done by using MATLAB 2012a software. These simulations were tested and plotted under different frequencies 2.5GHz, 7.5GHz and 10GHz on array elements of 9.