3D Printed Corrugated Plate Antennas With High Aperture Efficiency and High Gain at X-Band and Ka-Band
3D Printed Corrugated Plate Antennas With High Aperture Efficiency and High Gain at X-Band and Ka-Band
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DOI：
10.1109/access.2020.2972101
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发表时间：
2020-01-01
期刊：
影响因子：
3.9
通讯作者：
Parini, Clive G.
中科院分区：
文献类型：
--
作者：
Alkaraki, Shaker;Gao, Yue;Parini, Clive G.
本文提出了一种具有高孔径效率和宽带宽的紧凑型3D打印高增益波纹板天线的设计标准。通过制造用于X波段和Ka波段应用的3D打印和铝原型，对所提出的设计标准进行了数值和实验验证。拟议的天线结构由两层组成，其中电磁能（EM）发射到两层之间存在的腔体中，并且EM能量耦合到第二层的表面。第二层是辐射结构，它由三个由矩形腔和周期性波纹包围的缝隙组成，显著提高了天线的增益。制造并测试了所提出的天线的3D打印原型，以验证所提出的设计标准，并将其性能与铝金属对应物进行了比较。使用3D打印技术制造拟议的天线，为铝金属原型提供低成本和低重量的替代品。测试结果表明，该器件具有高增益、高孔径效率、低旁瓣和低交叉极化等特性。
A design criterion for a compact 3D printed high gain corrugated plate antenns that has high aperture efficiency and wide bandwidth is presented in this paper. The proposed design criterion is validated numerically and experimentally by fabricating 3D printed and Aluminium prototypes for X-band and Ka-band applications. The proposed antenna structure consists of two layers, where the electromagnetic energy (EM) is launched into a cavity that exists between both layers and the EM energy is coupled to the surface of the second layer. The second layer is the radiating structure which consists of three slots surrounded by a rectangular cavity and periodic corrugations that significantly improve the gain of the antennas. The 3D printed prototypes of the proposed antennas are fabricated and tested to validate the proposed design criterion, and their performance is compared to the Aluminium metallic counterparts. Using 3D printing technology, to fabricate the proposed antennas offer low cost and low weight alternatives to the Aluminium metallic prototypes. The measured results of the fabricated prototypes show high gain, high aperture efficiency, low side lobe level, and low cross polarization performance over a wide bandwidth.