Design and SAR Analysis of a body wearable Textile patch Antenna

Abstract

In this paper a body wearable textile patch antenna operated at 2.4 GHz is presented. The designed antenna is analyzed under bend and flat conditions. For design of this antenna, 3 mm thick wash cotton with dielectric constant of 1.51 is used as a substrate and 0.04 mm thick copper is used as conductive part of antenna. An electromagnetic band gap (EBG) is employed as a ground plane to reduce the SAR (specific absorption rate) when the same antenna is simulated on a three layered body phantom model (containing muscles, skin and fat). Using the EBG, SAR value of antenna has been reduced by 97.96% as compared to conventional antenna. Due to good return loss, high bandwidth and gain designed antenna is suitable for wearable applications.