用于5G通信的阻抗带宽共形四臂螺旋天线改进研究  

Study on improved impedance bandwidth conformal four-arm spiral antenna for 5G communication

作　　者：何锦 商锋[1] He Jin;Shang Feng(Xi’an University of Posts and Telecommunications,Xi’an 710121,China)

机构地区：[1]西安邮电大学,陕西西安710121

出　　处：《无线互联科技》2021年第11期7-9,59,共4页Wireless Internet Technology

摘　　要：文章提出了一种有效改进阻抗带宽的共形印刷四臂螺旋天线。该天线在改进带宽方面进行了研究。在结构上每个辐射振子旁边添加一个寄生振子,分别以相同的长度、不同的宽度和螺旋角度绕制以减少振子间耦合,一宽一窄两个辐射臂底部进行相连接以用来增加带宽,馈电方式采用四端口同轴线馈电。仿真结果表明,平均增益在3.4~3.6 G之间为4.6 dBi,在3.4~3.6 G之间带宽达到600 MHz,回波损耗达到-28 dB。提出的天线具有宽阻抗带宽,高增益和小尺寸的特点,使其成为未来5G移动应用的自然选择。In this paper,a conformal printed four-arm spiral antenna with improved impedance bandwidth is proposed.The bandwidth of the antenna is improved.A parasitic oscillator is added next to each radiation vibrator in the structure,which is wound with the same length,different width and different helix angle to reduce the coupling between the oscillators.Two radiation arms,one wide and one narrow,are connected at the bottom to increase the bandwidth.The four port coaxial feed is adopted.The simulation results show that the average gain is 4.6 dB in the range of 3.4~3.6 G,the bandwidth is 600 MHz in the range of 3.4~3.6G,and the return loss is-28dB.Results proposed that antenna has the characteristics of wide impedance bandwidth,high gain and small size,which make it a natural choice for 5G mobile applications in the future.

关 键 词：四壁螺旋天线 共形 改善带宽 5G 

分 类 号：TN929.5[电子电信—通信与信息系统] TN823[电子电信—信息与通信工程]