Multi-Layered Low-Profile Monopole Antenna using Metamaterial for Wireless Body Area Networks

摘要

This article presents a low profile MTM enabled antenna operating at 2.18-2.43 GHz for Wireless Body Area Network (WBAN) application. The integrated antenna comprises of 2x2 H-shaped unit elements underneath the monopole antenna. The integration of ground plane with monopole greatly reduces the surface waves and enhance radiation performance. The integrated MTM antenna lowers the average 1-g SAR to 0.187 W/kg at the designated band when antenna is 1 mm apart from body-tissues. Compare to the reference patch antenna and the planar monopole, the proposed antenna exhibits efficient impedance performance, improved gain and front-to-back (FB) radiation ratio.