High-Isolation 5G Repeater Antenna Using a Novel DGS and an EBG

IF 1.6 3区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

Journal of electromagnetic engineering and science Pub Date : 2023-05-31 DOI:10.26866/jees.2023.3.r.168

Myeong-Jun Kang, SeungYong Park, Kab-Goo Cho, Kyung‐Young Jung

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引用次数: 0

Abstract

Repeaters have been widely used to improve communication quality and extend the coverage areas of wireless communication systems. However, mutual coupling between the Tx and Rx antennas significantly deteriorates the performance of repeater systems. This work presents a high-isolation repeater antenna operating in a frequency range of 3.6–3.7 GHz in a 5G communication system. Perpendicularly arranged microstrip patch antennas are used because this arrangement can lead to greater isolation than a parallel arrangement. However, the perpendicular arrangement results in radiation pattern distortion due to the ground mode. A novel defected ground structure (DGS) is developed to suppress the ground mode and simultaneously reduce the mutual coupling between the Tx and Rx antennas. An electromagnetic bandgap (EBG) is additionally employed to further increase isolation. The measurement results of a fabricated repeater antenna show no radiation pattern deformation and an isolation improvement of 28 dB over the repeater antenna without the DGS and EBG.

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采用新型DGS和EBG的高隔离5G中继器天线

在无线通信系统中，中继器被广泛用于提高通信质量和扩大覆盖范围。然而，Tx和Rx天线之间的相互耦合显著降低了中继器系统的性能。本研究提出了一种在5G通信系统中工作在3.6-3.7 GHz频率范围内的高隔离中继器天线。垂直布置的微带贴片天线被使用，因为这种布置比平行布置能导致更大的隔离。然而，垂直排列由于地模的影响导致辐射方向图失真。提出了一种新型的缺陷接地结构(DGS)来抑制接地模式，同时减少Tx天线和Rx天线之间的相互耦合。另外还采用了电磁带隙(EBG)来进一步增加隔离。测量结果表明，与不加DGS和EBG的中继器天线相比，预制中继器天线的辐射方向图没有变形，隔离度提高了28 dB。

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

Journal of electromagnetic engineering and science ENGINEERING, ELECTRICAL & ELECTRONIC-

CiteScore

2.90

自引率

17.40%

发文量

审稿时长

10 weeks

期刊介绍： The Journal of Electromagnetic Engineering and Science (JEES) is an official English-language journal of the Korean Institute of Electromagnetic and Science (KIEES). This journal was launched in 2001 and has been published quarterly since 2003. It is currently registered with the National Research Foundation of Korea and also indexed in Scopus, CrossRef and EBSCO, DOI/Crossref, Google Scholar and Web of Science Core Collection as Emerging Sources Citation Index(ESCI) Journal. The objective of JEES is to publish academic as well as industrial research results and discoveries in electromagnetic engineering and science. The particular scope of the journal includes electromagnetic field theory and its applications: High frequency components, circuits, and systems, Antennas, smart phones, and radars, Electromagnetic wave environments, Relevant industrial developments.