Millimeter-Wave Liquid Crystal Polymer Based Conformal Antenna Array for 5G Applications
Millimeter-Wave Liquid Crystal Polymer Based Conformal Antenna Array for 5G Applications
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DOI：
10.1109/lawp.2018.2881303
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发表时间：
2019-01-01
影响因子：
4.2
通讯作者：
Alomainy, Akram
中科院分区：
文献类型：
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作者：
Jilani, Syeda Fizzah;Munoz, Max O.;Alomainy, Akram
这封信介绍了在K-a波段（26.5-40 GHz）工作的第五代（5G）无线网络的灵活毫米波（mm波）天线阵列的设计、制造和性能评估。单元件天线由一个共面波导馈电的矩形贴片组成，其侧面逐渐变细，并带有两个垂直定向的缝隙。接地端设计了L形短截线，使分散的辐射方向图会聚，提高了天线的方向性和增益。天线的制造是通过两种先进的方法，激光铣削和喷墨印刷的柔性液晶聚合物薄膜。在这封信中还提出了一种新的和时间有效的方法印后烧结。为了提高增益，将设计扩展到二元阵列中。测试结果表明，该天线阵的带宽为26-40 GHz，在35 GHz处的峰值增益为11.35 dBi，在整个Ka频段内的增益分布均在9 dBi以上。这些功能推荐所提出的天线阵列作为未来灵活的5G前端和毫米波可穿戴设备集成的有效解决方案。
This letter presents the design, fabrication, and performance evaluation of a flexible millimeter-wave (mm-wave) antenna array for the fifth generation (5G) wireless networks operating at K-a-band (26.5-40 GHz). The single element antenna is comprised of a coplanar-waveguide-fed rectangular patch tapered at its sides with two vertically oriented slots. The ground is designed with L-shaped stubs to converge the dispersed radiation pattern for improving the directivity and gain. The antenna fabrication is accomplished by two advanced methods of laser-milling and inkjet printing on a thin film of flexible liquid crystal polymer. A novel and time-efficient method for postprinting sintering is also proposed in this letter. The design is extended in a two-element array for the gain enhancement. Measurements have validated that the proposed antenna array exhibits a bandwidth of 26-40 GHz with a peak gain of 11.35 dBi at 35 GHz, and consistent high gain profile of above 9 dBi in the complete Ka-band. These features recommend the proposed antenna array as an efficient solution for integration in future flexible 5G front ends and mm-wave wearable devices.