Performance Improvement of a Dual-Band Textile Antenna for On-Body Through Artificial Magnetic Conductoropen access
- Authors
- Ali, Usman; Basir, Abdul; Zada, Muhammad; Ullah, Sadiq; Kamal, Babar; Yoo, Hyoungsuk
- Issue Date
- Jul-2023
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Artificial magnetic conductor (AMC); CST MWS; felt; flexibility; Shieldit; wireless body area network (WBAN); wearable antennas
- Citation
- IEEE ACCESS, v.11, pp.72316 - 72331
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE ACCESS
- Volume
- 11
- Start Page
- 72316
- End Page
- 72331
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/189623
- DOI
- 10.1109/ACCESS.2023.3294412
- ISSN
- 2169-3536
- Abstract
- 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 3x3 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 shieldit material is used as conductive material for the antenna and AMC array. The proposed antenna and AMC array have overall volumes of 0.41 lambda(0) x 0.45 lambda(0) x 0.016 lambda(0) and 0.83 lambda(0) x 0.83 lambda(0) x 0.016.0, 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.
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