A staired plus shaped coplanar waveguide (CPW)-fed wide band antenna for multiple wireless applications

US had defined UWB frequency range by Federal Communications Commission (FCC) on February 14, 2014 from 3.1 GHz to 10.6 GHz for efficient use of radio bandwidth. In this paper, staired plus shaped CPW-fed antenna have not only covered UWB (Ultra wideband) range. It also covered upper band of UWB range as well as lower band of UWB range. It's range of Bandwidth is 2.49 GHz to 21.70 GHz and 24.47 GHz to 27.70 GHz. In this region, five resonances are there. These were 4.34 GHz, 9.39 GHz, 14.92 GHz, 18.77 GHz and 26.53 GHz provided 9.13 dBi, 3.14 dBi, 5.21 dBi, 4.02 dBi and 6.24dBi of Gain respectively. This wide Bandwidth was achieved for the reference of less than -10 dB return loss. Outputs are simulated by Ansoft HFSS (High Frequency Structure Simulator) software. An antenna is printed on Duroid substrate whose size has been taken 30 mm X 30mm with 1.60 mm height. This was symmetric along the Y-axis. Relative permittivity (ϵ_r) and Dielectric loss tangent (δ) of Duroid substrate are 2.2 and 0.0009 respectively. Staircase rectangular shape has been introduced in lower and upper side of radiation patch. Simulated return loss (S₁₁), gain, directivity, current Distribution and VSWR are discussed.