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A compact microstrip patch antenna (RMPA) using systematic coplanar waveguide (CPW-Fed) triple printed antenna has designed for WiMAX/WLAN applications in this paper. A prototype CPW-Fed antenna was fabricated with FR4 Substrate with the dielectric constant of 4.4 and thickness h =1.6 mm. The antenna primarily consists of the symmetrical coplanar waveguide with rectangular slotted patch and excite by a 50 Ω CPW feed line for impedance matching to generate wide triple operating bands. This antenna is suitable for the range from 2.39 -2.75 GHz, 3.4-3.7GHz and 4.6 -6.9 GHz. It is designed miniaturized CPW-Fed microstrip patch antenna has a compact size 20 mm x 35 mm. In this paper researcher has focused on to improve the gain, impedance bandwidth and also have lower return losses, better impedance matching. The simulated results show that the proposed antenna has achieved wider bandwidth with satisfactory gain by introducing a stub with CPW-Fed in the assistant of a rectangular slot in the upper layer.

Design and Performance Analysis of a Triple Band Micro-Strip Patch Antenna with CPW-Fed