Design and evaluation of a UWB wearable textile antenna for body area network

This paper presents a novel Ultra Wide Band (UWB) wearable textile antenna for body area networks. The proposed antenna consists of a hexagonal radiating patch and a partial ground plane. The substrate of the proposed antenna is made of Dacron fabric with permittivity 3. Ultra wide bandwidth is achieved by optimizing the geometry, introducing a square notch in the partial ground plane and introducing novel slot pattern on the radiating patch of the antenna. This novel slot represents the “wireless antenna” icon. The dimension of the proposed antenna substrate is 40×34×1.7 mm³ and the bandwidth 16.56 GHz starting from 2.6 GHz to 19.16 GHz for return loss less than -10 dB. The gain variation is from 2 dB to 6.35 dB and average total efficiency more than 83%. Maximum power of 17.39 mW may be set as input to the proposed antenna in order to guarantee compliance with the IEEE C95.1-1999 safety standard. The proposed antenna design details and simulated results are presented by Commercial electromagnetic simulation package CST Microwave Studio.