Design and Performance Evaluation of Textile-based Microstrip Antenna for Wearable Applications in the ISM Band

خیری, طاهره; Shanbeh, Mohsen; مداح علی, محسن

doi:10.48302/jtp.2026.566560.1344

Design and Performance Evaluation of Textile-based Microstrip Antenna for Wearable Applications in the ISM Band

Document Type : Original Article

Authors

طاهره خیری ¹

Mohsen Shanbeh

محسن مداح علی ²

¹ اصفهان- دانشگاه صنعتی اصفهان-دانشکده مهندسی نساجی-

² اصفهان- دانشکاه صنعتی اصفهان- دانشکده مهندسی برق و کامپیوتر

10.48302/jtp.2026.566560.1344

Abstract

This study explores the innovative development of electronic textiles, focusing on wearable textile-based antennas designed for advanced applications in healthcare, and fitness. In this study, a novel textile-based ISM band microstrip patch antenna was designed and modeled to work in the 2.4 GHz frequency. The woven fabrics by silver-coated nylon6 multifilament yarns was used to prepare the patch and ground of antenna. A key aspect of the designing process involves calculating the relative permittivity of the denim fabric used as substrate. Determining this value caused the optimization of the antenna’s performance in the 2.4 GHz, ISM band. Moreover, the Simulation Technology using CST software analyzed the suggested antenna performance. Key findings of proposed antenna include a return loss below -10 dB, a gain of 7 dBi, and a Specific Absorption Rate (SAR) of 0.154 W/kg. The SAR results reveal that the antenna complies with safety standard limits. These results demonstrate the antenna’s efficiency, safety, and suitability for future application in wearable technologies.

Keywords

Electronic textiles

Wearable antennas

Microstrip patch antenna

Conductive woven fabric

Specific Absorption Ratio (SAR)

Subjects