具有带阻特性的可穿戴超宽带单极子天线的研究  

Research on UWB Monopole Antenna with Band-notched for Wearable Application

作　　者：杨竟松 金杰 Yang Jingsong;Jin Jie(School of Electrical and Information Engineering,Tianjin University,Tianjin 300072,China)

机构地区：[1]天津大学电气自动化与信息工程学院,天津300072

出　　处：《南开大学学报（自然科学版）》2020年第3期21-24,共4页Acta Scientiarum Naturalium Universitatis Nankaiensis

基　　金：国家自然科学基金(61571320)。

摘　　要：为降低窄带信号对超宽带的干扰,对具有带阻特性的超宽带天线进行了研究,提出了一种对WiMAX频段具有带阻特性的超宽带单极子天线.该天线采用了聚四氟乙烯玻璃纤维柔性材料作为介质基板,以铜作为辐射贴片和接地板材料,通过在天线的辐射贴片上刻蚀出开口谐振环,使得天线在3.25-3.9 GHz频段出现阻带,有效抑制了WiMAX无线通信(工作频段为3.3-3.7 GHz)窄带信号对超宽带的干扰.天线的整体尺寸为32 mm×40 mm×0.8 mm.仿真分析结果表明,天线带宽为2.7-12.3 GHz,阻带为3.25-3.9 GHz,实现了辐射方向图H面的全向特性和E面稳定性.通过建立人体组织模型,改变天线与人体的距离对天线工作特性进行对比分析,验证了可穿戴天线的可行性.The band-notched UWB(Ultra-wideband)monopole antennas have been researched in order to reduce the interference of narrow band signals,and a UWB monopole antenna with notched bands for WiMAX has been proposed.The antenna is fabricated on Poly tetra fluoroethylene glass fiber flexible substrate,the radiating and ground patch are both made of copper.By fabricating a open resonant ring on the radiating patch,the antenna can obtain the notched bands of 3.25-3.9 GHz,and the interference of the WiMAX wireless communication(3.3-3.7 GHz)can be avoided effectively.The overall size of the antenna is 32 mm×40 mm×0.8 mm,the simulation results show that the antenna has operating bandwidth of 2.7-12.3 GHz with the notched bands including 3.25-3.9 GHz,omnidirectional radiation characteristic of the H-plane and the stability of the E-plane.By establishing the human body tissue model,changing the distance between the antenna and the human body to compare the performance of the antenna to verify the feasibility of the wearable antenna.

关 键 词：超宽带 带阻特性 单极子天线 聚四氟乙烯玻璃纤维 可穿戴 

分 类 号：TM820[电气工程—高电压与绝缘技术]