Abstract: This paper presents a new design of the fractal multiband antenna structure. The proposed antenna is optimized by using CST-MW studio, this structure is a CPW-Fed antenna which makes it easier to integrate with RF devices. The final validated circuit is designed to operate in the Industrial Scientific and Medical (ISM 2.4 - 2.5GHz), worldwide interoperability for microwave access (WiMAX 3.30 - 3.80 GHz), IMT advanced system (3.40 - 4.20 GHz). The properties of antennas, for example, yield loss, radiation patterns and gain are determined by numerical simulation and measurement.

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