Shri-shape UWB wearable antenna & its performance with human tissue

Abstract

Wearable technology is growing technology in today’s wireless world. So, there is great demand for wearable devices comprising wearable antenna. Wearable antenna has to be worn on the human body in the form of jackets, wrist watches, glasses, smart clothing, head-mounted displays, GPS shoes etc. Wearable antenna is major part in all the devices. These devices can be used for health monitoring, physical training, navigation, RFID, military, medical, human safety and security applications. Radiations from such antenna greatly effects on the human body parts. This paper represents a novel structure for UWB wearable applications. The major focus is given on effect of antenna on human body. Along with the VSWR, return loss, bandwidth, specific absorption rate (SAR) has been measured using equivalent head model. The structure is designed using Rogers 5880 as substrate material and compared with FR4, polyester, flannel, jean fabric using Ansys HFSS simulation software. All structures are designed to work in the UWB range (1 to 10GHz and above) useful for wearable applications.