Abstract
Advancements in technology have generated an escalating demand for robust mobile communication systems, highlighting the importance of wearable applications in diverse sectors such as biomedicine, military, and rescue services. This research underscores the crucial role of wearable antennas in addressing this growing need, with a specific focus on their design and development for applications within the Internet of Things (IoT). The primary objective is to establish resilient communication links capable of operating across various environments and weather conditions. Within this context, the investigation delves into the utilization of microstrip Yagi-Uda antennas renowned for their directivity, lightweight construction, low profile, and cost-effectiveness. The study introduces the simulated and fabricated design of a wearable Microstrip Yagi-Uda antenna optimized for operation at 2.45 GHz, applicable in health and rescue services. The antenna was analyzed by applying jeans textile as a substrate material and reached the return loss of -20.1 dB with an 8.5 dB gain. Jeans material as a substrate showed appropriate results to be applied in a wearable antenna.