摘要
设计实现了一种工作在C波段的2×2的宽带小型化双圆极化微带阵列天线.通过多层结构和支节匹配技术,拓展带宽;T型功分器顺序相差馈电形成馈电网络且左右旋馈电网络分层排布,实现小型化.实物测试结果表明,该天线VSWR<2的阻抗带宽达39.5%,左旋和右旋3 dB轴比带宽均达到28.6%以上,在工作频带3.4~4.2 GHz内,左旋和右旋增益均在10 dB以上,天线阵列尺寸仅为1.27λ0×1.27λ0×0.1λ0.实物测试结果与仿真结果吻合良好.
This paper designs a 2×2 miniaturized broadband double-circularly polarized microstrip array antenna that works on C-band.The antenna extends the bandwidth through a multi-layer structure and the tuning stub matching technique.In order to achieve miniaturization,the T-type power divider are sequentially phase-differentiated to form a feed network which is arranged hierarchically.The test result indicates that the impedance bandwidth of the antenna is 39.5%,the axial ratio bandwidth both of left and right ciculary poarized is less than 3 dB above 28.6%.In the 3.4~4.2 GHz,the gain is above 10 dB.The size of antenna array is only 1.27λ0×1.27λ0×0.1λ0.The measured results are in good agreement with the simulated results.
作者
徐永佳
杨存顺
孙雨婷
郭庆功
XU Yong-Jia;YANG Cun-Shun;SUN Yu-Ting;GUO Qing-Gong(College of Electronics and Information Engineering,Sichuan University,Chengdu 610065,China;The No.30 Institute of China Electronics Technology Group Corporation,Chengdu 610041,China)
出处
《四川大学学报（自然科学版）》
CAS
CSCD
北大核心
2020年第4期719-724,共6页
Journal of Sichuan University(Natural Science Edition)
基金
国家自然科学基金(61877041)。
关键词
双圆极化
小型化
宽带
微带阵列
Double circular polarization
Miniaturization
Broadband
Microstrip array
