Design of Compact Dualband CPW-Fed Patch Antenna for Wireless Communication

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In this paper, a compact dualband coplanar waveguide (CPW) fed patch antenna is presented. This antenna prototype is composed of rectangular patch and ground plane, which occupies a small area of 38×50mm2. Rectangular patch has vertical stub at each edge. Vertical slot is etched into ground plane, which is symmetrically placed at both side of the transmission line. Radiating patch and ground plane both are placed on the front surface of the dielectric substrate. Simulated and measured results demonstrate that this antenna has dualband characteristic. This antenna provides 490 MHz and 330 MHz impedance bandwidth over 1.67-2.16 GHz and 3.39-3.72 GHz frequency bands respectively, which can easily cover the DCS/DECT/PCS/PHS and WiMAX communication bands. In addition, parameters are also studied.
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Compact Dualband Antenna; Ground Plane; Impedance Bandwidth; Microstrip Antenna; Rectangular Patch

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