Thue-Morse序列准周期阵列天线的探究  

Research on Thue-Morse Sequence Quasi-periodic Array Antenna

作　　者：刘近超 潘风明[1] 曹浩 崔际源 LIU Jin-chao;PAN Feng-ming;CAO Hao;CUI Ji-yuan(College of Science,Nanjing University of Aeronautics and Astronautics,Nanjing 211106,China;Suzhou Houli Intelligent Technology Co.,Ltd.Suzhou 215000,China)

机构地区：[1]南京航空航天大学理学院,南京211106 [2]苏州厚立智能科技有限公司,江苏苏州215000

出　　处：《西安文理学院学报（自然科学版）》2019年第6期14-16,53,共4页Journal of Xi’an University(Natural Science Edition)

摘　　要：提出了一种新的阵列天线的排布方式,准周期阵列天线.文章基于阵列天线在远场的辐射理论,借助Thue-Morse序列对线性阵列天线进行排布.得到天线口径相较于周期阵列更大,波束宽度相应的减小,同时旁瓣电平也会有所降低.准周期的阵列天线在空间排布上具有长程有序的特性,阵元数目越大准周期阵列天线越接近周期阵列天线.得到41阵元的准周期阵列在109.5°的位置具有较低的零陷深度为-91.04 dB.A new arrangement of array antennas that quasi-periodic array antennas is proposed.Based on the radiation theory of the array antenna in the far field,the linear array antenna with the Thue-Morse sequence is arranged in this paper.The results show that the antenna aperture is larger than the periodic array,the beam width is correspondingly reduced,and the sidelobe level is also reduced.Quasi-periodic array antennas have long-range ordering characteristics in spatial arrangement.The larger the number of array elements,the closer the quasi-periodic array antenna is to the periodic array antenna.A quasi-periodic array with 41 elements has a lower null depth of-91.04 dB at a position of 109.5°.

关 键 词：准周期 阵列天线 THUE-MORSE 低副瓣 

分 类 号：TN823[电子电信—信息与通信工程]