Planar wideband circularly polarized metasurface-based antenna array
Planar wideband circularly polarized metasurface-based antenna array
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DOI：
10.1080/09205071.2016.1210038
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发表时间：
2016-07
影响因子：
1.3
通讯作者：
S. Ta;I. Park
中科院分区：
文献类型：
--
作者：
S. Ta;I. Park
摘要本文提出了一种具有高增益和宽频带工作的平面圆极化（CP）天线阵。该阵列基于一组2 × 2 CP超表面天线的顺序旋转馈电网络。单个单元是微带线馈电缝隙天线，其耦合到具有4 × 4截角方形贴片的元表面，以产生CP辐射。通过馈电网络和基于CP超表面的天线之间的适当组合，获得了设计的宽带特性。该阵列的总体尺寸为50 × 50 × 2.032 mm 3（在9.6 GHz时约为1.60 × 1.60 × 0.065 λ0），已制作完成并进行了测试。测量结果显示，|S11|百分之八十四
Abstract This paper presents a planar circularly polarized (CP) antenna array with a high-gain and wideband operation. The array is based on a sequentially rotated feeding network for a set of 2 × 2 CP metasurface-based antennas. The single element is a microstrip-line-fed slot antenna, which is coupled to a metasurface having 4 × 4 truncated corner square patches, to produce the CP radiation. The wideband characteristic of the design is obtained by a proper combination between the feeding network and the CP metasurface-based antennas. The proposed array, with an overall size of 50 × 50 × 2.032 mm3 (~1.60 × 1.60 × 0.065 λ0 at 9.6 GHz), has been fabricated and tested. The measurements resulted in an |S11| 84%.