双频段体表/体外双模式可穿戴天线设计  

Design of Dual-band Dual-mode Wearable Antenna for On-/Off-body Communications

作　　者：沈飘飘 刘巾军 肖如奇 杨国[1] 齐世山 SHEN Piaopiao;LIU Jinjun;XIAO Ruqi;YANG Guo;QI Shishan(School of Electronic and Optical Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;The Fourth Military Representative Office of PLA Army Equipment Department in Nanjing Region,Nanjing 210007,China)

机构地区：[1]南京理工大学电子工程与光电技术学院,江苏南京210094 [2]陆军装备部驻南京地区第四军事代表室,江苏南京210007

出　　处：《无线电工程》2024年第5期1255-1260,共6页Radio Engineering

基　　金：国家自然科学基金(62271257)。

摘　　要：基于特征模理论分析方法,设计了一款2.45、5.8 GHz频段的体表/体外双模式可穿戴天线。在三角形的辐射贴片和接地面之间加载一段微带线,在2.45 GHz引入一个具有全向辐射特性的新模式,加上三角形贴片本身在5.8 GHz具有的定向辐射特性,组成了一个双频段双模式可穿戴天线。天线的仿真结果表明,在低频处实现全向辐射特性,阻抗带宽为1.6%(2.45~2.49 GHz),可用于体表通信模式;在高频处具有定向辐射特性,阻抗带宽为4.3%(5.67~5.92 GHz),可用于体外通信模式。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 

分 类 号：TN82[电子电信—信息与通信工程]