Suspended 60 GHz phased array antenna with high efficiency
Suspended 60 GHz phased array antenna with high efficiency
复制标题
高效悬挂式 60 GHz 相控阵天线
DOI：
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发表时间：
2016
期刊：
影响因子：
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通讯作者：
N. Ghalichechian
中科院分区：
文献类型：
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作者：
Kaveh Keshtkaran;N. Ghalichechian
本文介绍了一种工作在60 GHz的5×5口径耦合微带贴片相控阵天线。一种新的微制造技术能够将辐射元件从有损衬底中分离出来。研究发现，悬浮单元通过减少空气介质边界(表面波)处的俘获能量，在不牺牲阵列增益的情况下提高了效率和扫描范围。该阵列的带宽为7.5 GHz(12.5%)，可在E面和H面上扫描±60°。总阵列效率计算为>；90%。仿真结果表明，在-12dB旁瓣电平的情况下，系统在瞄准镜下获得了18.6dB的增益。在E面和H面上扫描±60°时，阵列增益分别为15和14.5分贝。
This paper presents 5×5 aperture coupled microstrip patch phased array antenna with suspended radiating elements operating at 60 GHz. A novel microfabrication technique enables separation of radiating elements from a lossy substrate. It was found that suspended elements improve efficiency and scanning range without sacrificing gain of the array by decreasing trapped energy at air dielectric boundary (surface waves). The array has a bandwidth of 7.5 GHz (12.5%) and capable of scanning ±60° in both E and H planes. Total array efficiency is calculated to be >90%. Simulation results show 18.6 dB gain with -12 dB sidelobe level at boresight. Furthermore, array gain is 15 dB and 14.5 dB when scanning ±60° in E and H-planes, respectively.