一种小型、宽带、对角方形分形MIMO车载通信天线的设计

IF 3.2 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

Aeu-International Journal of Electronics and Communications Pub Date : 2025-09-06 DOI:10.1016/j.aeue.2025.156023

Shalikram Rajpoot, Gaurav Singh Baghel, M.V. Swati

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引用次数: 0

摘要

提出了一种用于车载通信的小型化、低轮廓、双端口、对角方形分形（DSF） MIMO天线。该天线集成了开槽自寄生元件（SSPE）和缺陷接地结构（DGS），提供宽带、高隔离和改进的阻抗匹配。适当优化SSPE的尺寸和位置可以提高天线的整体带宽，而仔细优化DGS的尺寸和位置可以改善阻抗匹配。拟议的天线拥有一个广泛的宽带，覆盖1.42 GHz，即专用短程通信（DSRC）频段的5.40至6.82 GHz，以及x频段的3.03 GHz，即8.39至11.42 GHz。MIMO天线采用RT/duroid 5880基板制作，尺寸为20.41 x 45.44 x 4.15 mm3。在期望的频段上，该配置的最大增益分别为16.10 dBi和21.50 dBi，辐射效率分别为92.43%和92.37%。MIMO分集参数的模拟和实验研究描述了密集的性能。仿真结果与实验结果的一致性证明了该天线在车载通信中的应用价值。

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Design of a compact, wideband, Diagonal Square Fractal MIMO antenna for vehicular communication

A miniaturized, low-profile, dual-port, Diagonal Square Fractal (DSF) MIMO antenna has been presented for vehicular communication. The proposed antenna has been integrated with a Slotted Self-Parasitic Element (SSPE) and Defective Ground Structure (DGS), offering wide bandwidth, high isolation, and improved impedance matching. Proper optimization of SSPE dimensions and position leads to enhancement of the overall antenna bandwidth, while careful optimization of dimensions and the positioning of DGS leads to improved impedance matching. The proposed antenna houses an extensive wideband that covers 1.42 GHz, i.e., from 5.40 to 6.82 GHz at the Dedicated Short-Range Communications (DSRC) band and 3.03 GHz, i.e., from 8.39 to 11.42 GHz, at X-band. The proposed MIMO antenna is fabricated on RT/duroid 5880 substrate with compact dimensions of 20.41 x 45.44 x 4.15

m m^{3}

. The proposed configuration achieved a maximum gain of 16.10 dBi, 21.50 dBi, and radiation efficiency of 92.43%, 92.37%, respectively, at the desired bands. Simulated and experimental investigations of the MIMO diversity parameters depict intensive performance. The consistency of the simulation and experimental results and the results obtained strongly recommend the worthiness of the proposed antenna for vehicular communication.

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来源期刊

Aeu-International Journal of Electronics and Communications 工程技术-电信学

CiteScore

6.90

自引率

18.80%

发文量

292

审稿时长

4.9 months

期刊介绍： AEÜ is an international scientific journal which publishes both original works and invited tutorials. The journal''s scope covers all aspects of theory and design of circuits, systems and devices for electronics, signal processing, and communication, including: signal and system theory, digital signal processing network theory and circuit design information theory, communication theory and techniques, modulation, source and channel coding switching theory and techniques, communication protocols optical communications microwave theory and techniques, radar, sonar antennas, wave propagation AEÜ publishes full papers and letters with very short turn around time but a high standard review process. Review cycles are typically finished within twelve weeks by application of modern electronic communication facilities.