HEXAGONAL FRACTAL ANTENNA ARRAY FOR UWB APPLICATION

This paper represents the hexagonal fractal antenna array for UWB application. A fractal antenna is an antenna that posses a unique geometrical pattern which can be repeated to produce various iterative structure or shape with unique radiation characteristics. The hexagonal fractal antenna is based on self-similarity and space filling property of fractal antenna. The frequency band is considered from 3 to 10.6 GHz. Microstrip line feed has used to make the design of antenna versatile in term of impedance matching. This antenna has designed up to third iteration through miniaturization procedure. These iteration are designed on a dielectric FR4 epoxy substrate, permittivity ∈_r=4.4 and height =1.6mm. It is fed by a 50 ohm microstrip line. Proper and improved result has observed at third iteration of the antenna design using the HFSS software. The simulated results are in good agreement with experimental results.