High-gain radiating sun-shaped silicon-based wideband with defected ground structured dual-port MIMO antenna operating at 3.6 THz for 6 G Terahertz Applications

IF 4.7 4区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Nano Communication Networks Pub Date : 2025-07-01 Epub Date: 2025-03-28 DOI:10.1016/j.nancom.2025.100572

Srinivas Paruchuri , V. Vijayasri Bolisetty , D. AnandKumar , Bokkisam Venkata Sai Sailaja

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Abstract

In this work, we present a novel wideband 2 × 2 terahertz (THz) antenna array for MIMO applications, featuring a compact footprint of 300 × 490 × 50 µm³ on a silicon substrate with a dielectric constant of 11.9. The proposed design incorporates circular split-ring resonators (CSRRs) and radiating slots etched in a unique "sun-shaped" radiating layer, achieving broad bandwidth and efficient radiation characteristics. The two MIMO elements are positioned side-by-side to optimize data transmission and isolation. The antenna demonstrates a wide operational bandwidth from 1.76 THz to 5.07 THz, with a gain exceeding 9 dBi across this range. Key performance metrics include an envelope correlation coefficient (ECC) of -0.08 dB and a diversity gain of 9.92 dB at 3.16 THz, indicating strong MIMO performance and minimal mutual coupling. The reflection (S₁₁) and transmission (S₂₁) parameters are better than -40 dB, further confirming excellent impedance matching and inter-element isolation. Additionally, the channel capacity loss remains under 0.4 bps/Hz, ensuring efficient data throughput. The proposed sun-shaped MIMO THz antenna offers promising potential for high-speed, reliable wireless communication applications in the terahertz domain.

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高增益辐射太阳形硅基宽带，具有缺陷地结构双端口MIMO天线，工作在3.6太赫兹，用于6g太赫兹应用

在这项工作中，我们提出了一种用于MIMO应用的新型宽带2 × 2太赫兹（THz）天线阵列，其在介电常数为11.9的硅衬底上的占地面积为300 × 490 × 50 μ m³。该设计采用圆形分环谐振器（csrr）和独特的“太阳形”辐射层中蚀刻的辐射槽，实现了宽带宽和高效辐射特性。两个MIMO元件并排放置，以优化数据传输和隔离。该天线具有从1.76太赫兹到5.07太赫兹的宽工作带宽，在此范围内增益超过9 dBi。关键性能指标包括-0.08 dB的包络相关系数（ECC）和3.16 THz时9.92 dB的分集增益，表明了强大的MIMO性能和最小的相互耦合。反射（S11）和传输（S21）参数优于-40 dB，进一步证实了良好的阻抗匹配和元件间隔离。此外，信道容量损失保持在0.4 bps/Hz以下，保证了高效的数据吞吐量。所提出的太阳形MIMO太赫兹天线为太赫兹领域的高速、可靠的无线通信应用提供了广阔的潜力。

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来源期刊

Nano Communication Networks Mathematics-Applied Mathematics

CiteScore

6.00

自引率

6.90%

发文量

期刊介绍： The Nano Communication Networks Journal is an international, archival and multi-disciplinary journal providing a publication vehicle for complete coverage of all topics of interest to those involved in all aspects of nanoscale communication and networking. Theoretical research contributions presenting new techniques, concepts or analyses; applied contributions reporting on experiences and experiments; and tutorial and survey manuscripts are published. Nano Communication Networks is a part of the COMNET (Computer Networks) family of journals within Elsevier. The family of journals covers all aspects of networking except nanonetworking, which is the scope of this journal.