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一种采用平面馈电的具有全向辐射特性的多频段毫米波矩形介质谐振器天线。

A Multiband Millimeter-Wave Rectangular Dielectric Resonator Antenna with Omnidirectional Radiation Using a Planar Feed.

作者信息

Abdou Tarek S, Khamas Salam K

机构信息

Communications Research Group, Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield S1 3JD, UK.

出版信息

Micromachines (Basel). 2023 Sep 16;14(9):1774. doi: 10.3390/mi14091774.

DOI:10.3390/mi14091774
PMID:37763937
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC10537064/
Abstract

In this study, a millimeter-wave (mmWave) dielectric resonator antenna (DRA) with an omnidirectional pattern is presented for the first time. A key feature of the proposed design is the utilization of a planar feed network to achieve omnidirectional radiation from a rectangular DRA, which has not been reported previously in the open literature. In addition, the proposed antenna offers multiband operation with different types of radiation patterns. The degenerate TE/TE modes were excited at 28.5 GHz with an overall internal electromagnetic field distribution that was similar to that of the HEM mode of a cylindrical DRA. The achieved omnidirectional bandwidth and gain were 1.9% and 4.3 dBi, respectively. Moreover, broadside radiation was achieved by exciting the TE fundamental mode at 17.5 GHz together with the resonance of the feeding ring-slot at 23 GHz. The triple-band operation offers a highly versatile antenna that can be utilized in on-body and off-body communications. Furthermore, the proposed design was validated through measurements, demonstrating good agreement with simulations.

摘要

在本研究中，首次提出了一种具有全向方向图的毫米波（mmWave）介质谐振器天线（DRA）。所提出设计的一个关键特性是利用平面馈电网络来实现矩形DRA的全向辐射，这在公开文献中此前尚未有报道。此外，所提出的天线提供具有不同类型辐射方向图的多频段工作。在28.5 GHz激发简并TE/TE模式，其整体内部电磁场分布类似于圆柱形DRA的HEM模式。实现的全向带宽和增益分别为1.9%和4.3 dBi。此外，通过在17.5 GHz激发TE基模以及在23 GHz激发馈电环形缝隙的谐振来实现宽边辐射。三频段工作提供了一种高度通用的天线，可用于体内和体外通信。此外，所提出的设计通过测量得到验证，结果表明与仿真结果吻合良好。

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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a08/10537064/31cc7cfe0b6c/micromachines-14-01774-g017.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0a08/10537064/448865263517/micromachines-14-01774-g018.jpg
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