In this paper, the authors present P-shaped Dielectric Resonator Antenna (DRA) is presented and investigated for wideband wireless application. By using P-shaped resonator, a wideband impedance bandwidth of 80% from 3.5 to 8.2GHz is achieved. The antenna covers all of wireless systems like C-band, 5.2, 5.5 & 5.8GHz-WLAN & WiMAX. The proposed antenna has a low profile and the thickness of the resonator is only 5.12mm, which is 0.06-0.14 free space wavelength. A parametric paper is presented. The proposed DRA is built and the characteristics of the antenna are measured.