Integration of two dual-port substrate integrated waveguide based MIMO antennas on a common substrate for 5G millimeter wave applications

IF 0.8 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Frequenz Pub Date : 2024-03-22 DOI:10.1515/freq-2023-0205

Abhik Gorai, Jyoti Ranjan Panda, Wriddhi Bhowmik, Arindam Deb, Rowdra Ghatak

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Abstract

This paper presents method for integrating two dual port multiple input multiple output (MIMO) antennas on a common substrate based on substrate integrated waveguide (SIW) technology. One of the dual port MIMO antennas (MIMO_1) resonates at 31.2 GHz with an impedance bandwidth of 1 GHz while the other dual port MIMO antenna (MIMO_2) exhibits an impedance bandwidth of 925 MHz and resonates at 36 GHz. The radiators etched on the SIW cavities are complementary slotted annular rings (CSAR). Isolation between the ports is more than 20 dB which is inherently achieved by SIW cavity backed structures. The MIMO antenna realized at 31.2 GHz exhibit a peak realized gain of 8.5 dBi while the MIMO antenna realized at 36 GHz displays a peak gain of 9.8 dBi. The diversity gain of both the MIMO antennas is around 9.9 dB and the envelope correlation coefficient (ECC) of the MIMO antenna realized at 31 GHz is below 0.004 while the ECC of MIMO antenna at 36 GHz is below 0.006. It is also confirmed that simulated results closely correlate with the measurement results.

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在共用基底上集成两个基于双端口基底集成波导的多输入多输出天线，用于 5G 毫米波应用

本文介绍了基于基底集成波导（SIW）技术在共用基底上集成两个双端口多输入多输出（MIMO）天线的方法。其中一个双端口 MIMO 天线（MIMO_1）的谐振频率为 31.2 GHz，阻抗带宽为 1 GHz，而另一个双端口 MIMO 天线（MIMO_2）的阻抗带宽为 925 MHz，谐振频率为 36 GHz。在 SIW 腔体上蚀刻的辐射器是互补开槽环（CSAR）。端口之间的隔离度超过 20 dB，这是 SIW 腔背结构所固有的。在 31.2 GHz 频率下实现的 MIMO 天线的峰值增益为 8.5 dBi，而在 36 GHz 频率下实现的 MIMO 天线的峰值增益为 9.8 dBi。两种 MIMO 天线的分集增益都在 9.9 dB 左右，31 GHz MIMO 天线的包络相关系数 (ECC) 低于 0.004，而 36 GHz MIMO 天线的 ECC 低于 0.006。模拟结果与测量结果密切相关，这一点也得到了证实。

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

Frequenz 工程技术-工程：电子与电气

CiteScore

2.40

自引率

18.20%

发文量

审稿时长

3 months

期刊介绍： Frequenz is one of the leading scientific and technological journals covering all aspects of RF-, Microwave-, and THz-Engineering. It is a peer-reviewed, bi-monthly published journal. Frequenz was first published in 1947 with a circulation of 7000 copies, focusing on telecommunications. Today, the major objective of Frequenz is to highlight current research activities and development efforts in RF-, Microwave-, and THz-Engineering throughout a wide frequency spectrum ranging from radio via microwave up to THz frequencies. RF-, Microwave-, and THz-Engineering is a very active area of Research & Development as well as of Applications in a wide variety of fields. It has been the key to enabling technologies responsible for phenomenal growth of satellite broadcasting, wireless communications, satellite and terrestrial mobile communications and navigation, high-speed THz communication systems. It will open up new technologies in communications, radar, remote sensing and imaging, in identification and localization as well as in sensors, e.g. for wireless industrial process and environmental monitoring as well as for biomedical sensing.