Abstract :

Wearable antennas have become a critical component in modern wireless communication systems, enabling continuous connectivity for health monitoring, IoT devices, and mobile applications. This project presents the design and analysis of a tri-band wearable antenna suitable for wireless applications such as WLAN, WiMAX, and ISM bands. The proposed antenna is compact, lightweight, and conformal, allowing easy integration with clothing or body-mounted devices. A flexible substrate is used to maintain performance under bending and human body proximity. Electromagnetic simulations are conducted to optimize the antenna for resonance, impedance matching, and radiation efficiency across the three frequency bands. The antenna demonstrates stable gain, adequate bandwidth, and acceptable SAR (Specific Absorption Rate) levels, ensuring user safety. Design parameters are validated using software such as CST and HFSS. The tri-band functionality allows multi-standard communication without interference