Multiband fractal CPW antenna for GPS, WiMAX and IMT applications

摘要

This paper presents a new design of a fractal multiband antenna structure fed by coplanar waveguide (CPW) transmission line. The proposed antenna is optimized by using CST-MW studio. The final validated circuit is designed to operate in the Global Positioning System (GPS 1.57), Worldwide Interoperability for Microwave Access (WiMAX 2.5 - 2.69 / 3.30 - 3.80), and Advanced System of forth generation mobile communication (IMT 3.40 - 4.20 GHZ). Manifestly, it has been found that the radiation patterns of the presented antenna are still similarly to the bidirectional radiation pattern. The properties of the antennas, for instance, return losses and radiation patterns are validated into simulation by using two electromagnetic simulators HFSS and CST-MW Studio.