An enhanced hexagonal shaped planar antenna is presented for ultra-wideband (UWB) applications. In this paper, a hexagonal patch with six circular cuts at its vertices is designed on FR4-substrate with 50 Ω microstrip triangular tapered feed line and a bevelled partial ground plane with fivehalf circular sleeves. The design is investigated using the highfrequency structure simulator (HFSS). The simulated and measuredscattering parameter S11 (Reflection Coefficient) results show good impedance matching in the frequency range (3 27.57) GHz satisfying return loss (RL = |S_11|) ≥ 10 dB with a percentage bandwidth (PBW) of 160.75%. High gain and efficiency, radiation pattern similar to the electric dipole in E-plane and good omnidirectional in the H-plane are achieved
Key words: Ultra-Wide Band (UWB),Reflection Coefficient, Circular cuts, Sleeves,Bevel, Gain and Bandwidth
|
