A Compact Design and Development of WBAN Textile Antenna for WLAN, WiMAX and IOT Applications

This paper presents triple-band antenna design geometry for textile antenna applications. The proposed antenna utilises the inherent conformal features of Jeans as the substrate and a conducting surface with flexible metal as the radiating surface. The proposed antenna geometry is simple in structure yet complicated in dimensions as it is susceptible to radiation characteristics. The proposed triple band antenna covers the operating frequency ranges notably, 2.3183-2.4465 GHz (128 MHz), 3.2240 GHz-3.9902 GHz (Bandwidth of 766 MHz) and 5.1858-5.6042 GHz (Bandwidth of 418 MHz). The bands of operation are suitable for WLAN, WiMAX and IoT applications respectively. The final outer dimensions of the proposed compact triple band antenna is 20 mm x 50 mm x 0.254 mm with Jeans of thickness of 10 mils (0.254 mm) used as the substrate. The triple band antenna is modelled on the efficient CAD tool embedded in the CST in which the simulations are carried out and analysis is performed using the generated reports like reflection coefficient, VSWR and radiation patterns. The simulations and measurement results are good agreement in terms of bandwidth (BW), Return Loss (S11) and Radiation pattern (RP), bending analysis and Specific Absorption rate (SAR).