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In this paper the analysis and design of compact CPW-fed slot antenna that operates in the IEEE 802.11a frequency band from 5.15 GHz to 5.35 GHz for wireless applications through a single grounded coplanar waveguide port for achieving sectorized radiation pattern is presented. The antenna is designed on a RT/duroid 5880 substrate with a permittivity 2.22 and with the size of 18.8 mm times 12.3 mm times 3.175 mm. The antenna has a 5 % VSWR (2.3:1) bandwidth around 5.24 GHz. The fundamental parameters of the antenna such as impedance, return loss, VSWR and polarization are obtained. All meets the acceptable antenna standards. Simulation tool, based on the method of moments (ZELAND IE3D version 12.0) has been used to analyze and optimize the antenna.