Compact Dual-Band Wearable Textile Antenna Based on Quarter-Mode Substrate Integrated Waveguide

Abstract

A compact dual-band textile antenna operating in the 3.5-GHz WiMAX band and the 5.8-GHz industrial, scientific, and medical band, is proposed for wearable devices. The dual-band operation is activated by using different modes. The antenna has the advantages of good human shielding function and achieves a rather small dimension of 43.8 mm × 43.8 mm × 2 mm (0.51 λ0 × 0.51 λ0 × 0.02 λ0) by adopting a quarter-mode substrate integrated waveguide structure. Due to the fact that the proposed antenna is made of the flexible textile material, it can be conformal to the human body. Detailed analysis and simulation results show that the antenna has stable performance under bending and in proximity of human phantom.