Design of Metamaterial Zipper Antenna for Boby-Centric Wireless Communication

Abstract

The concept of making metamaterial zipper antenna to serve as an off- body antenna is proposed and the stimulations are carried out. The feeding point is located at the bottom and in order to be more specific it is around one of the variation and reflection coefficient as well as radiation pattern or brought by excitation at certain tooth of zipper. The radiation pattern is reconfigurable to some extent. A fractional bandwidth of 4.80 percent at 2.48 GHz of industrial, scientific and medical band with a gain of about 5dBi has been achieved. The stimulation result indicate reasonable agreement to that of stimulation in both matching performance and the radiation feature of metamaterial zipper antenna, which makes the antenna more promising candidate for body centric wireless communication device .