Three Band Wearable Antenna Based on Artificial Magnetic Conductor

In this paper, a three-band wearable antenna with coplanar waveguide (CWP) feed based on an artificial magnetic conductor (AMC) is presented. The antenna consists of a monopole antenna with an array of 4×5 AMC cells, using polyimide as the substrate, with overall dimensions of 124 mm × 155 mm × 8.9 mm. Three open inverted triangles form an independent monopole antenna, with each open inverted triangle corresponding to one band. The AMC unit is composed of three regular octagons produces zero phase reflection at the center frequency of the corresponding three bands. The design operates at 1.8 GHz, 2.4 GHz, 3.5 GHz, can be used in all three LTE 1800/WLAN/WiMAX bands and be applied to widely integrated into a variety of wearable devices. The gain of the three frequency points increased by 10.1dB, 2.86 dB and 5.06 dB respectively. In this paper, the antenna has been simulated with different degrees of bending performance, as well as the analysis of the effect of human tissues on the performance of the antenna. The results show that the antenna has good bending characteristics.