David fractal antenna for multiband wireless communication

Abstract

Modern telecommunication systems require antennas with multiband characteristics and smaller dimensions that support multiple wireless applications. In this paper, a hexagon shaped microstrip patch antenna is presented, that works at 1.8 GHz. Fractal concept is introduced in to the hexagon shape for miniaturization and multiband characteristics. Here David hexagon fractal concept is used to convert the hexagon shaped patch to a dual band antenna which produces multiple resonances at 1.8 GHz and 3.4 GHz. The antenna is suitable for cellular communication and Wi-max applications. Size reduction up to 18.3% in terms of patch size is achieved in the proposed fractal antenna in comparison to hexagon patch operating in the first resonant frequency band.