Design of Hexagonal Fractal Multiband Antenna with Parametric Analysis

With the rapid evolution in wireless communication systems and increasing importance next generation wireless applications, wideband and low profile antennas are in great demand for both commercial and military applications. The need of multiband, larger gain and low profile antennas to support multiple wireless applications led to the design of Fractal Antennas. Fractal antennas due to their self-similar design take less area and are thus low profile. Further they can obtain radiation pattern and input impedance similar to a larger multiband antennas. This paper presents the design of hexagonal fractal antenna up to third iteration. The proposed antenna is designed on FR4 substrate with dielectric constant of 4.4 and fed with 50 ohms microstrip line. By optimizing the width microstrip feed and its location the antenna can be optimized to operate in multiple bands between 1-5GHz