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A novel coplanar waveguide fed compact dual-band antenna for 2.5/5.7GHz applications is presented in this paper. The above characteristics are obtained by carefully optimizing the slotted ground planes and meander short placed between the signal strip and one of the lateral ground planes. The proposed antenna has been designed on a substrate with dielectric constant 4.4, thickness 1.6mm, and it occupies a small area of 18.2×20mm2. The experimental analysis shows 2 : 1 VSWR bandwidth up to 150MHz and 370MHz for 2.5GHz and 5.7GHz, respectively. Antenna radiation characteristics, including return loss, radiation pattern, radiation efficiency and gain are also validated with numerical simulation and experimental measurements.

COPLANAR WAVEGUIDE (CPW)-FED COMPACT DUAL BAND ANTENNA FOR 2.5/5.7 GHZ APPLICATIONS