Key points are not available for this paper at this time.
The increasing demand for wireless communication in wearable devices has led to the need for wearable antennas with a low profile, flexibility, robustness, low SAR, and acceptable on-body performance for WBAN applications. This study presents a low-profile dual-band wearable antenna for WBAN applications operating at 2.45 and 5.8 GHz. The antenna is integrated with a 3 × 3 artificial magnetic conductor array to reduce backward radiation and improve performance when worn on the human body. It is designed and fabricated on a 2 mm-thick flexible felt substrate with a relative permittivity of 1.3 and loss tangent of 0.044. A 0.17 mm-thick superconductive shielded material is used as conductive material for the antenna and AMC array. The proposed antenna and AMC array have overall volumes of 0.41λ 0 × 0.45λ 0 × 0.016λ 0 and 0.83λ 0 × 0.83λ 0 × 0.016λ 0 , respectively. Results indicate that the AMC structure enhances the antenna’s gain, radiation efficiency, and bandwidth. The use of AMC reduced the SAR by greater than 98% for 1 and 10 g of human tissue at 2.45 and 5.8 GHz. The proposed design is suitable for WBAN applications due to its low profile, flexibility, robustness, low SAR, and acceptable on-body antenna gain and bandwidth.
Ali et al. (Sun,) studied this question.