Gain-enhanced antenna backed with the fractal Artificial Magnetic Conductor
Gain-enhanced antenna backed with the fractal Artificial Magnetic Conductor
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采用分形人造磁导体的增益增强天线
DOI：
10.1049/iet-map.2017.1130
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Junping Duan
中科院分区：
文献类型：
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作者：
Binzhen Zhang;Pei Yao;Junping Duan
作者提出了一种加载人工磁导体（AMC）后腔的单向高增益天线，该天线在低轮廓下产生0°反射相位以增强增益。采用分形技术，将AMC单元小区的工作带宽扩展到5.1 ~ 7.4 GHz（36.5%）。在分形AMC反射面上安装2 mm（0.04波长，中心频率为6 GHz）的复合天线，其辐射性能得到改善，带宽更宽，增益增加。仿真结果表明，该天线的工作带宽范围为4.7 ~ 8 GHz（52.0%）。此外，在整个工作频段内，与没有AMC后腔的原始天线相比，平均增益增强了4 dB。此外，对所设计的天线进行了制造和测试，测量结果与仿真结果吻合较好。
The authors proposed a unidirectional, high‐gain antenna loaded with the artificial magnetic conductor (AMC) back‐cavity, which generates the reflection phase of 0° for gain enhancement in a low profile. The working bandwidth of the AMC unit cell is extended to 5.1–7.4 GHz (36.5%) by applying the fractal technology. The radiation performance improvement, wider bandwidth and increased gain are obtained for the composite antenna mounted on the fractal AMC reflector with the distance of 2 mm (0.04 wavelength at the central frequency of 6 GHz). The simulated results indicated that the operational bandwidth of the proposed antenna ranges from 4.7 to 8 GHz (52.0%). Besides, an average gain enhancement of 4 dB as compared to the original antenna without AMC back‐cavity is achieved over the entire operating band. In addition, the proposed antenna is manufactured and tested, the measured results coincide well with the simulated counterparts.