Based on the theory of characteristic mode,a dual-mode wearable antenna for on-body and off-body operation at 2.45,5.8 GHz is designed.The dual-band dual-mode wearable antenna is developed by introducing a new omnidirectional radiation mode at 2.45 GHz,achieved by loading a microstrip line between the triangular radiating patch and the ground plane,combined with the directional radiation pattern of the triangular patch itself at 5.8 GHz.Simulation results show that the antenna provides omnidirectional radiation at low frequency with an impedance bandwidth of 1.6％(2.45～2.49 GHz),suitable for on-body communication,and directional radiation at high frequency with an impedance bandwidth of 4.3％(5.67～5.92 GHz),suitable for off-body communication.
关键词
可穿戴天线/特征模分析/体表通信/体外通信
Key words
wearable antenna/characteristic mode analysis/on-body communication/off-body communication
维普
万方数据