一种末端加载对数周期天线  

A Type of Log-Periodic Dipole Arrays Antenna Using End loaded

作　　者：朱海冰[1] 刘颖[1] 叶君永[1] 何清明 ZHU Haibing;LIU Ying;YE Junyong;HE Qingming(Southwest China Research Institute of Electronic Equipment,Chengdu 610036,China)

机构地区：[1]西南电子设备研究所,成都610036

出　　处：《电子信息对抗技术》2021年第5期80-83,共4页Electronic Information Warfare Technology

摘　　要：提出一种末端对数周期天线(LPDA)。通过对对数振子片的末端加载,大幅缩短天线的尺寸。在保证优于13 dB前后比,同时天线增益高于6.5 dB的前提下,对数周期天线的最大振子片尺寸小于最低工作频率的0.4个波长。测试结果表明:该类小型化对数周期天线在3.3∶1的带宽内具有良好的宽带性能,结构形式简单,易于加工实现,在宽带相控阵中具有很大应用价值。A type of end loaded dipole of log-periodic dipole arrays is presented for miniaturizing the size.The size of the longest radiation dipole is smaller than 0.4λof the lowest working fre-quency,simultaneously,the main-back lobe ratio bigger than 13 dB,and the gain is higher than 6.5 dB.The results show:the designed miniaturize log-periodic dipole arrays have a good per-formance at 3.3∶1 bandwidth,the structure is easy to fabricate,this antenna can be used in the broadband phase array.

关 键 词：对数周期天线(LPDA) 末端加载 小型化 

分 类 号：TN821.6[电子电信—信息与通信工程]