Investigations on a compact self-isolated flag-shaped slotted MIMO antenna for triple-band applications

IF 1.7 4区计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Communication Systems Pub Date : 2024-09-03 DOI:10.1002/dac.5967

S. Rekha, G. Shine Let, S. Radha, P. Lavanya, T. Rajasekhar, S. Ravi Chand

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Abstract

A compact flag-shaped slotted multiple input multiple output (MIMO) antenna is deliberated in the article for triple-band applications. The flag-shaped slotted antenna is built with the help of four radiating patches having rectangular slots and disconnected ground structures. The suggested flag-shaped slotted antenna can operate in the key frequencies of 2.4, 3.5, and 5 GHz. The antenna elements are oriented orthogonally with each other, such that no external decoupling structures are required to provide isolation. The complete size of the four-element MIMO is 30*30*1.6 mm³. The minimum isolation between the four flag-shaped slotted elements is −61, −55, and −47 dB in the operating frequency band of 2.3–2.8 GHz, 3.4–3.9 GHz, and 4.5–5.6 GHz, respectively. The simulated and measured results agree with each other, and they have stable radiation and gain. The MIMO performance parameters are measured, and it is noticed that the envelope correlation coefficient is lower than 0.04 and the diversity gain is 9.99 dB in the considered working frequency bands. The proposed flag-shaped slotted MIMO is appropriate for WLAN, 5G sub-6 GHz, and ISM wireless applications.

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针对三频应用的紧凑型自隔离旗形开槽多输入多输出天线的研究

摘要文章讨论了一种用于三频应用的紧凑型旗形开槽多输入多输出（MIMO）天线。旗形开槽天线由四个具有矩形槽的辐射贴片和断开的接地结构构成。建议的旗形开槽天线可在 2.4、3.5 和 5 千兆赫的关键频率下工作。天线元件彼此正交，因此无需外部去耦结构来提供隔离。四元件 MIMO 的完整尺寸为 30*30*1.6 mm3。在 2.3-2.8 GHz、3.4-3.9 GHz 和 4.5-5.6 GHz 工作频段内，四个旗形开槽元件之间的最小隔离度分别为 -61、-55 和 -47 dB。模拟和测量结果一致，辐射和增益稳定。测量了 MIMO 性能参数，发现在考虑的工作频段中，包络相关系数低于 0.04，分集增益为 9.99 dB。所提出的旗形开槽多输入多输出适用于 WLAN、5G sub-6 GHz 和 ISM 无线应用。

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来源期刊

International Journal of Communication Systems 工程技术-电信学

CiteScore

5.90

自引率

9.50%

发文量

323

审稿时长

7.9 months

期刊介绍： The International Journal of Communication Systems provides a forum for R&D, open to researchers from all types of institutions and organisations worldwide, aimed at the increasingly important area of communication technology. The Journal''s emphasis is particularly on the issues impacting behaviour at the system, service and management levels. Published twelve times a year, it provides coverage of advances that have a significant potential to impact the immense technical and commercial opportunities in the communications sector. The International Journal of Communication Systems strives to select a balance of contributions that promotes technical innovation allied to practical relevance across the range of system types and issues. The Journal addresses both public communication systems (Telecommunication, mobile, Internet, and Cable TV) and private systems (Intranets, enterprise networks, LANs, MANs, WANs). The following key areas and issues are regularly covered: -Transmission/Switching/Distribution technologies (ATM, SDH, TCP/IP, routers, DSL, cable modems, VoD, VoIP, WDM, etc.) -System control, network/service management -Network and Internet protocols and standards -Client-server, distributed and Web-based communication systems -Broadband and multimedia systems and applications, with a focus on increased service variety and interactivity -Trials of advanced systems and services; their implementation and evaluation -Novel concepts and improvements in technique; their theoretical basis and performance analysis using measurement/testing, modelling and simulation -Performance evaluation issues and methods.