Several different techniques have been proposed in literature, concerning the enhancement of impedance bandwidth in microstrip antennas, mostly by increasing the substrate thickness, by decreasing the substrate dielectric constant [3], and by alternative feeding methods (aperture coupled or proximity instead of direct contacting feed). Moreover, by increasing the width of the printed dipole antennas, the bandwidth of antenna increases [4]. By using triangular instead of rectangular dipole arms (bow-tie-configuration), the bandwidth can be further expanded to 37% as presented by Bailey [5]. Coplanar parasitic elements have been proposed by Deal et al. [6] in a quasi-Yagi configuration, yielding an impedance bandwidth of 48%. A similar Yagi-like double sided antenna [7], achieved a bandwidth of 37%. Stacked parasitic elements (aperture attacked patches) are