Wideband high-gain millimetre/submillimetre wave antenna using additive manufacturing
Wideband high-gain millimetre/submillimetre wave antenna using additive manufacturing
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采用增材制造的宽带高增益毫米波/亚毫米波天线
DOI：
10.1049/iet-map.2018.5412
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
Gu C
中科院分区：
文献类型：
--
作者：
Gu C
本研究提出了一种用于毫米和亚毫米波段的宽带高增益谐振腔天线（RCA）的新设计，以及使用增材制造（AM）进行制造。建议RCA天线由一个部分反射表面和三个阻抗匹配层由波导馈电。AM技术被用来制造工作在30 GHz的设计。两种制造技术进行评估打印天线。第一种技术是基于印刷介电材料并用金属层完全涂覆部件，而第二种技术涉及使用金属三维印刷在单个过程中印刷部件。第一种技术提供了一个轻量级的解决方案，而第二种技术可以在一次运行中打印整个模型。通过仿真和实验研究了天线的设计。测量结果表明，3 dB增益带宽约为10%，所有三个天线的增益超过15 dBi。仿真结果与实测结果吻合较好。该天线具有低成本、宽带宽和高增益等优点，可用于毫米波和亚毫米波频率的高速无线通信。
This study presents a novel design of a wideband high‐gain resonant cavity antenna (RCA) for millimetre and submillimetre wave bands, and its fabrication using additive manufacturing (AM). The proposed RCA antenna consists of a partially reflecting surface and three impedance matching layers fed by a waveguide. AM techniques are utilised to fabricate the design operating at 30 GHz. Two fabrication techniques are assessed for printing the antenna. The first technique is based on printing a dielectric material and fully coating the parts with a metallic layer, while the second technique involves printing the parts in a single process using metal three‐dimensional printing. The first technique offers a lightweight solution while the second technique can print the whole model in one run. The antenna design is investigated by both simulations and experiments. The measured results show a 3 dB gain bandwidth of about 10%, and high gain over 15 dBi for all the three resulting antennas. Good agreement between simulation and measurement is obtained. The antenna is of low cost and achieved good performance in terms of wide bandwidth and high gain, thus it is potentially useful for high‐speed wireless communications at millimetre‐wave and sub‐millimetre‐wave frequencies.