A novel tilted dipole quasi-Yagi antenna designed for 3G and Bluetooth applications

Applications in 3G, WLAN and Bluetooth are actually the largest area in wireless communications, especially for antenna designers. Due to that, in this paper a broadband planar antenna based on the classic Yagi-Uda dipole antenna and projected to the range of frequencies that includes 1.8 GHz, 1.9 GHz, and 2.45 GHz is presented. This "tilted dipole, quasi-Yagi antenna" achieves a measured 41% bandwidth for VSWR<2 a directivity of 5.5 dBi and an efficiency of 70-85%. In addition, a comparison between this antenna and a classical quasi-Yagi is done. The agreements between simulated and measured results for return loss are satisfactory.