FOLLOWUS
School of Microelectronics, Xidian University, Xi'an 710071, China
E-mail: 19111110564@stu.xidian.edu.cn
‡ Corresponding author
zhangmingzhu@xidian.edu.cn
ytyang@xidian.edu.cn
Published:0 May 2023,
Received:16 September 2022,
Accepted:2023-01-16
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YITONG YAO, GANG DONG, ZHANGMING ZHU, et al. Stacked arrangement of substrate integrated waveguide cavity-backed semicircle patches for wideband circularpolarization with filtering effect. [J]. Frontiers of information technology & electronic engineering, 2023, 24(5): 759-766.
YITONG YAO, GANG DONG, ZHANGMING ZHU, et al. Stacked arrangement of substrate integrated waveguide cavity-backed semicircle patches for wideband circularpolarization with filtering effect. [J]. Frontiers of information technology & electronic engineering, 2023, 24(5): 759-766. DOI: 10.1631/FITEE.2200398.
文章提出一种应用于 X 频段和 Ku 频段卫星无线通信的带有滤波效应的新型宽带圆极化天线。该结构包含一个驱动层(同时也是滤波层)以及一个堆叠层(同时也是圆极化层)。带通滤波响应中的两个辐射零点,是衬底集成波导(SIW)腔体支持的开口与嵌入式驱动贴片的综合效果。引入倒角贴片作为堆叠元件,具有同时实现圆极化和拓宽工作带宽的能力。使用多层印制电路板(PCB)工艺制作了一个尺寸为 0.8
λ
0
×0.71
λ
0
×0.16
λ
0
的紧凑原型进行演示。实验结果与仿真结果吻合良好,测量的 −10-dB 阻抗带宽和 3-dB 轴比带宽分别为10.83% 和 15.54%。此外,还获得了 8.9 dBic 的左旋圆极化峰值增益,大于 7 dBic 的带内平均左旋圆极化增益,以及良好的频率选择性。
圆极化滤波效应贴片天线衬底集成波导
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