Title : Design and performance analysis of a U-shaped slot rectangular microstrip patch antenna for wearable health monitoring systems
Abstract:
In health monitoring systems, wearable antennas play a crucial role in providing global coverage and enabling seamless communication. To satisfy the requirements of such antennas, key properties such as flexibility, cost, and data transmission rate must be carefully considered. This study presents the design and simulation of a U-shaped slot rectangular microstrip patch antenna (RMSA) using High Frequency Structure Simulator (HFSS), with performance analysis across various flexible substrates. The RMSA was designed using different flexible substrate materials including Epoxy, Teflon, Polyethylene, Polyamide, RT Duroid, and PDMS, aiming for an operational frequency range of 2.4–2.6 GHz. The analysis focused on parameters such as reflection coefficient, bandwidth, radiation pattern, gain, and antenna cost, while maintaining a constant height for all substrates. Among the evaluated materials, the PDMS-based substrate proved to be the most suitable for health and weight monitoring applications.