A Low-Cost Millimeter-Wave High-Gain Slot Antenna Array Fed by Multilayer Waveguide

2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) Pub Date : 2021-11-15 DOI:10.1109/IMWS-AMP53428.2021.9643905

Yifan Yu, Yongle Wu, Yuhao Yang, Weimin Wang, Jianhong Chen, C. Jin

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Abstract

A millimeter-wave antenna array fed by multilayer waveguide is proposed in this paper. Different from traditional rectangular cavity waveguide, the multilayer waveguide structure used for the antenna is constructed by stacking several thin metal plates. The metal plates are filled with air and do not require any electrical contact. The electromagnetic band gap (EBG) structure is added to the thin metal plates to prevent the leakage of electromagnetic waves within a certain frequency between the metal layers. By using this waveguide structure, manufacturing cost can be greatly reduced. Introduce this waveguide structure into the design of the waveguide slot antenna, and a highperformance millimeter-wave antenna is realized. This 12-element antenna array works at W-band, the gain at the highest point is more than 21 dBi, and the difference between the side lobe and the main lobe exceeds 12 dB. The proposed antenna array could be an excellent candidate for designing millimeter-wave waveguide slot antenna, and can be used for navigation, radar, and other high-frequency communication systems.

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多层波导馈电的低成本毫米波高增益缝隙天线阵列

本文提出了一种多层波导馈电的毫米波天线阵列。与传统的矩形腔波导不同，用于天线的多层波导结构是由多个薄金属板堆叠而成。金属板充满空气，不需要任何电接触。在薄金属板上加入电磁带隙(EBG)结构，防止金属层之间一定频率内的电磁波泄漏。采用这种波导结构，可以大大降低制造成本。将这种波导结构引入波导缝隙天线的设计中，实现了一种高性能的毫米波天线。该12元天线阵工作在w波段，最高点增益大于21 dBi，副瓣与主瓣之差超过12 dB。该天线阵列是毫米波波导缝隙天线设计的理想选择，可用于导航、雷达和其他高频通信系统。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

2021 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)

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