Design and Analysis Metamaterial Inspired Wearable Antenna for 2.45GHz ISM Band

A metamaterial (MTM) inspired wearable antenna for 2.45GHz ISM band is presented in this paper. The radiating element is designed using a rectangular patch having π shaped slot, this structure resembles metamaterial like geometry. The strip line for feed is altered to match the impedance for better performance. The proposed antenna design consists partial ground and four metamaterial unit cells under the radiating element in the same plane as ground. The MTM unit cells are designed using square shaped patches with inverted U shaped slots. The metamaterial are placed on top of the jeans cloth. The MTM unit cells helped in achieving the reduction of the specific absorption rate (SAR). The performance of the proposed antenna is presented using comparative simulated analysis like reflection coefficient, VSWR, radiation patterns and other antenna parameters for without MTM and with MTM cases. The suitability of the antenna for wearable application presented with the help of simulated analysis comparison for off-body and on-body conditions.