陷波带宽可控的圆环单极子UWB天线  

Ultra-wideband circular-ring monopole antenna with controllable notched bandwidth

作　　者：蔡培君[1] 廖同庆[2] 赵方雷[2] 

机构地区：[1]安徽大学江准学院,安徽合肥230039 [2]安徽大学电子信息工程学院,安徽合肥230601

出　　处：《合肥工业大学学报（自然科学版）》2017年第6期779-783,共5页Journal of Hefei University of Technology：Natural Science

基　　金：高等学校博士学科点专项科研基金资助项目(20123401120008)

摘　　要：针对现有超宽带(ultra-wideband,UWB)天线陷波带宽难以控制的问题,文章设计了一款陷波带宽可控的圆环单极子UWB天线。采用圆环单极子天线实现UWB特性,使其带宽覆盖3.1~10.6GHz;采用添加非对称半波长二阶阻抗谐振器实现陷波特性,陷波带宽可以通过调整非对称半波长二阶阻抗谐振器的宽度、位置和间距来控制;设计并加工了一款在5.1~6.0GHz频段内具有带阻特性的UWB天线,该天线能有效地抑制无线局域网络对UWB系统的影响。测试结果与仿真结果一致,验证了仿真的正确性。It is difficult to control the notched bandwidth of the ultra-wideband（UWB） antennas. A type of UWB circular-ring monopole antenna with controllable notched bandwidth is presented. Firstly, UWB characteristic covering 3. 1-10. 6 GHz band is produced by using the circular-ring monopole antenna. Then a pair of asymmetric half-wavelength second-order impedance resonators are added to realize the notched function. The notched bandwidth can be easily achieved by adjusting the width, the position and the gap of the asymmetric half-wavelength second-order impedance resonators. Final- ly, an UWB antenna with rejection band at 5.1-6.0 GHz is designed and fabricated, which effectively limits the interference from WLAN. Experimental results are consistent with simulation results, thus verifying the validity of the simulation.

关 键 词：超宽带(UWB) 圆环单极子 非对称半波长二阶阻抗谐振器 陷波带宽可控 

分 类 号：TN826[电子电信—信息与通信工程]