新型超宽带微带单极子天线的设计  

Design of a Novel Ultra-Wideband Microstrip Monopole Antenna

作　　者：侯翔宇 张兴红 刘淼源 HOU Xiangyu;ZHANG Xinghong;LIU Miaoyuan(Liangjiang International College, Chongqing University of Technology, Chongqing 401135, China)

机构地区：[1]重庆理工大学两江国际学院,重庆401135

出　　处：《压电与声光》2021年第2期197-200,共4页Piezoelectrics & Acoustooptics

基　　金：国家自然科学基金资助项目(51875069);重庆理工大学大学生创新创业训练计划基金资助项目(2020CX053)。

摘　　要：针对目前已有超宽带微带单极子天线带宽较窄及尺寸较大等缺点,该文设计了一款小型化结构新颖的超宽带微带单极子天线,使用HFSS软件对天线的结构尺寸进行了分析。天线尺寸仅为14 mm×25 mm×0.7 mm,采用中间开正六边形槽的圆形辐射贴片、矩形微带线及缺陷地面结构,实现了良好的超宽带特性。最终仿真结果表明,在频率2.0~28.6 GHz内,天线的回波损耗小于-10 dB,电压驻波比小于2,且具有良好的方向性,适用于超宽带通信系统中。Aiming at the shortcomings of the existing ultra-wideband microstrip monopole antennas such as narrow bandwidth and large size etc.,a miniaturized ultra-wideband microstrip monopole antenna with novel structure is designed in this paper,and the structure size of the antenna is analyzed by using software HFSS.The size of the antenna is only 14 mm×25 mm×0.7 mm.The good ultra-wideband(UWB)characteristic has been obtained by using the circular radiation patch with regular hexagonal slot in the middle,a rectangular microstrip line and defective ground structure(DGS).The final simulation results show that,at the frequency range from 2.0 GHz to 28.6 GHz,the return loss of the antenna is less than-10 dB,and the voltage standing wave ratio is less than 2.The antenna has good radiation directionality and is suitable for UWB communication system.

关 键 词：超宽带 小型化 正六边形槽 缺陷地结构 单极子天线 

分 类 号：TN821[电子电信—信息与通信工程]