A CPW-fed Rectangular Patch Antenna for WLAN/WiMAX Applications

Abstract — This paper presents a CPW fed Rectangular shaped patch antenna for the frequency 3.42GHz which falls in WiMAX and 5.25GHz for WLAN applications. The measured-10dB impedance bandwidth is about 650MHz (2.98GHz-3.63GHz) for WiMAX and 833MHz (4.95GHz-5.78GHz) for WLAN applications. The effect of slot width, rectangular patch height, and substrate dielectric constant have been evaluated. The results of antenna are simulated by using Zeeland’s MOM based IE3D tool. Two dimensional radiation patterns with elevation and azimuth angles, VSWR<2, Return loss of-24dB and-18dB for WiMAX and WLAN applications, antenna efficiency about 90%, gain above 3.5dB are obtained. The compact aperture area of the antenna is 46.2 X 41.66 mm2