Investigation of ultra-wideband Bowtie antennas for phased array feed application
Investigation of ultra-wideband Bowtie antennas for phased array feed application
复制标题
用于相控阵馈电应用的超宽带领结天线的研究
DOI：
10.1002/mmce.22397
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发表时间：
2020
影响因子：
1.7
通讯作者：
Zhan Dezhi
中科院分区：
文献类型：
--
作者：
Fan Jin;Yang Jian;Yan Yihua;Liao Wan-Chun;Yong Wai Yan;Zhan Dezhi
本文研究了两种新型超宽带双极化蝴蝶结天线作为反射器相控阵馈源的元件。除了其超宽带阻抗匹配特性外，Bowtie天线还具有稳定的大波束宽度和宽频带内的低交叉极电平，尺寸紧凑，这是相控阵应用的本质。仿真和测量结果表明，该电路具有低欧姆损耗、良好的阻抗匹配（S(11) < -15 dB）和良好的辐射性能，且结构简单，易于制造。所提出的天线可以很好地用于FAST和SKA（平方公里阵列）探路者PHAROS2项目中的相控阵馈电（PAF），以及无线通信系统中的大规模MIMO天线。
In this article, two new ultra-wideband (UWB) dual-polarized Bowtie antennas are investigated as the elements for a phased array feed for reflectors. In addition to its UWB impedance matching characteristic, the Bowtie antennas have stable large beam-width and a low cross-polar level over a wide frequency band with a compact size, which is an essence for phased array applications. The simulated and measured results state a low ohmic loss, good impedance matching (S(11)below -15 dB) and good radiation performance, with a simple structure for easy manufacturing. The proposed antennas can be good candidates for phased array feed (PAF) in FAST and the SKA (square kilometer array) pathfinder PHAROS2 projects, and massive MIMO antennas in wireless communication systems.