Single-layer integrated microstrip array antenna for dual circular polarisation
Single-layer integrated microstrip array antenna for dual circular polarisation
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DOI：
10.1049/iet-map.2011.0413
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发表时间：
2012-06
影响因子：
1.7
通讯作者：
Y. Ushijima;E. Nishiyama;M. Aikawa
中科院分区：
文献类型：
--
作者：
Y. Ushijima;E. Nishiyama;M. Aikawa
提出了一种单层集成双圆极化微带阵列天线。它由一个正交线极化微带阵列天线和一个使用单层基板的90°混合电路组成。正交极化阵列天线采用双面微波集成电路（MIC）技术，包括空气桥，有效地。它在正交模式之间具有出色的隔离和交叉极化抑制性能，并且天线尺寸扩展灵活。通过将其与90°混合电路集成，所提出的阵列天线可以同时激励正交圆极化[右旋圆极化（RHCP），左旋圆极化（LHCP）]。由于单层结构，可以容易地实现无线集成模块。模拟和实验结果表明，RHCP和LHCP的良好的圆极化性能。设计频率为10 GHz，实验中RHCP和LHCP的3 dB轴比带宽均约为10%。
A single-layer integrated microstrip array antenna for dual circular polarisation is proposed. It consists of an orthogonal linearly polarised microstrip array antenna and a 90° hybrid circuit using a single-layer substrate. The orthogonally polarised array antenna uses double-sided microwave-integrated circuit (MIC) technology including airbridges, effectively. It has excellent isolation and cross-polarisation suppression performance between the orthogonal modes and flexibility of the antenna size extension. By integrating it with the 90° hybrid circuit, the proposed array antenna can excite the orthogonal circular polarisations [right-hand circular polarisation (RHCP), left-hand circular polarisation (LHCP)] simultaneously. It is possible to easily realise wireless integration modules because of a single-layer structure. The simulated and experimental results show good circular polarisation performance for both the RHCP and LHCP. The design frequency is 10 GHz and the 3 dB axial ratio bandwidths of both the RHCP and LHCP are approximately 10% in the experiment.