A D-Band 3D-Printed Antenna
A D-Band 3D-Printed Antenna
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DOI：
10.1109/tthz.2020.2986650
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发表时间：
2020-09-01
影响因子：
3.2
通讯作者：
Yang, Xuexia
中科院分区：
文献类型：
--
作者：
Gu, Chao;Gao, Steven;Yang, Xuexia
报道了一种新型毫米波全金属天线的设计与制作。基于谐振腔天线（RCA）的概念，天线的工作原理进行了解释，并提供了几个关键的设计参数的参数研究。提出了一种新的阻抗匹配技术来拓宽天线回波损耗带宽。已经采用两种增益增强方法来实现具有减少的旁瓣和后瓣的更定向的波束。D波段天线原型是使用i）无任何后处理的全金属印刷; ii）随后应用铜金属化的电介质印刷来生产的。使用两种增材制造技术制造的天线之间的模拟和测量结果的比较。两种天线样机的测试结果表明，所设计的天线在135 GHz时带宽为14.2%，最大增益为15.5 dBi。目前的工作是使用两种不同的3D打印方法制造的第一个D波段谐振腔天线。
This article reports the design and fabrication of a novel all-metal antenna operating in the millimeter-wave band. Based on the resonant cavity antenna (RCA) concept, the principle of antenna operation is explained, and parametric studies of several key design parameters are provided. A novel impedance matching technique is introduced to broaden the antenna return loss bandwidth. Two gain enhancement methods have been employed to achieve a more directive beam with reduced side lobes and back lobes. The D-band antenna prototypes are produced using i) all-metal printing without any postprocessing; ii) dielectric printing with copper metallization applied later. Comparisons of the simulated and measured results amongst the antennas fabricated using the two additive manufacturing techniques are made. Measurement results of the two antenna prototypes show that the proposed design can achieve a 14.2% bandwidth with a maximum gain of 15.5 dBi at 135 GHz. The present work is the first D-band resonant cavity antenna fabricated using two different 3D printing methods.