为未来无线通信提供大工作频率的 3D 打印封装介质谐振器天线

IF 3.5 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
Reza Shamsaee Malfajani;Reza Damansabz;Sampada Bodkhe;Daniel Therriault;Jean-Jacques Laurin;Mohammad S. Sharawi
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引用次数: 0

摘要

共享孔径天线是一种多功能结构,可满足多标准新兴通信系统对多频段紧凑型天线的需求。然而,在相距甚远的频段(如 6GHz 以下频段和 5G 中的毫米波频段)工作的要求提出了挑战。本文介绍了一种新型封装介质谐振器天线(E-DRA),设计用于在 6GHz 以下频段和毫米波频段工作,适用于 5G 及其他应用。天线的介质谐振器部分由封装在较大圆柱体中的小型圆柱体介质谐振器阵列(cDRA)组成。在毫米波频段,小型 cDRA 是辐射元件,而较大的圆柱体则充当透镜,通过在小型 cDRA 之间切换馈电,增强增益并提供离散角度的波束切换。在 6 千兆赫以下频段,大圆柱体是主辐射器。该天线通过 3D 打印工艺实现,使用了两种不同填充物的 ABS 材料。对制造的天线进行的测量显示,在 3.35 GHz 频段的最大增益为 7.8 dBi,在 27 GHz 频段的最大增益为 19.7 dBi。测量带宽以 3.45 GHz 为中心为 20.2%,以 28.5 GHz 为中心为 28.7%。由五个元件组成的小型 cDRA 阵列可实现 ±30° 范围内的波束切换。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
3-D-Printed Encapsulated Dielectric Resonator Antennas With Large Operation Frequency Ratio for Future Wireless Communications
Shared aperture antennas are versatile structures that can fulfill the demand for multi-band compact antennas in multi-standard emerging communication systems. However, the requirement of operation at widely separated frequency bands, such as sub-6-GHz band and mm-wave band in 5G, poses a challenge. This paper introduces a novel Encapsulated Dielectric Resonator Antennas (E-DRAs) designed for operation at sub-6-GHz and mm-wave bands for 5G and beyond applications. The DRA part of the antenna consists of an array of small cylindrical DRAs (cDRA) encapsulated in a larger cylinder. At mm-wave band, the small cDRAs are radiating elements while the larger cylinder acts as a lens to enhance the gain and provide beam switching at discrete angles by switching the feed between the small cDRAs. At sub-6-GHz band, the large cylinder is the main radiator. The antenna is realized with a 3D printing process using two distinct ABS materials with different infills. Measurements of the fabricated antenna show a maximum gain of 7.8 dBi at 3.35 GHz and 19.7 dBi at 27 GHz. The measured bandwidth is 20.2% centered at 3.45 GHz and 28.7% centered at 28.5 GHz. The array of small cDRAs with five elements enables beam switching within ±30°.
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来源期刊
CiteScore
6.50
自引率
12.50%
发文量
90
审稿时长
8 weeks
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