Novel Miniaturized Sinuous Antenna for UWB Applications

This paper presents the design of an ultra-wideband (UWB) four arms non-conventional sinuous antenna exploiting the advantages of two optimized miniaturization techniques. The antenna works from 1.5 GHz to 18 GHz, radiating a slant 45 polarization. It is printed on a dielectric substrate having a diameter of 6 cm. Finally the antenna exhibits good matching properties, high realized gain and directive stable patterns over the entire frequency range.