Development of embroidered Sierpinski carpet antenna

This paper focuses on the design of embroidered textile antenna, where a fractal technology is used to integrate. Modern telecommunication systems require an antenna with low cost of fabrication and low profile features. This has initiated antenna research in various directions and one of them is wearable textile antenna. A wearable antenna is meant to be a part of clothing used for communication purposes. Fractal technology allowed us to design miniature antennas and integrate multiple telecommunication services into a single device. This study focuses on the investigation of embroidered Sierpinski carpet textile antenna's design using different fabrics suitable for wearable application. The substrate of this antenna is made of from two different low cost textile materials. Radiating element and ground plane are made of conductive threads. The performance of these two antennas that operated at 2.45 GHz such as return loss, bandwidth, VSWR and impedance are extensively investigated and carried out. All results have been demonstrated using simulation and measurement. From this study, it is found that both antennas from denim and felt fabrics can be used for wireless application. Besides, these antennas also still operate in bending condition. The result shows these antennas suitable for wearable application. However, the antenna that used denim textile shows the best performance compared to the antenna with felt fabrics.