Graphite-Inspired Dumbbell-Shaped Single Radiator MIMO Antenna for THz Regime: A Frequency Switchable/Reconfigurable Approach

IF 1.7 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

International Journal of Numerical Modelling-Electronic Networks Devices and Fields Pub Date : 2025-09-18 DOI:10.1002/jnm.70101

Mayuri Kulshreshtha, Rajarshi Bhattacharya

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引用次数: 0

Abstract

A graphite-inspired frequency switchable/reconfigurable MIMO (Multiple-input multiple-output) antenna is implemented for THz applications. Reconfigurability in the frequency response is achieved by layering the graphite in the slot of Antenna-2. The proposed antenna provides isolation better than 30 dB, high efficiency, and reasonable gain in the resonating band. An impedance bandwidth of 11.5% (2.04–2.29 THz) & 15.6% (4.06–4.74 THz) for Antenna-2 and 12.5% (3.53–3.99 THz) for Antenna-3 is achieved. Both the presented antennas demonstrate excellent diversity performance like Envelope Correlation Coefficient (ECC) < 0.03, Directive Gain (DG) > 9.95 dB; Total Active Reflection Coefficient (TARC) < −10 dB, and Channel Capacity Loss (CCL) < 0.35 bits/s/Hz, that can be incorporated into biomedical applications, high-frequency telecommunications, sensing applications, biological and astrophysical insights.

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太赫兹波段的石墨启发哑铃形单辐射MIMO天线：频率可切换/可重构方法

一种受石墨启发的频率可切换/可重构MIMO（多输入多输出）天线用于太赫兹应用。频率响应的可重构性是通过在天线2的槽中分层石墨来实现的。该天线具有隔离度大于30 dB、效率高、谐振频带增益合理的特点。天线2的阻抗带宽为11.5% (2.04-2.29 THz)，天线3的阻抗带宽为15.6% (4.06-4.74 THz)，天线3的阻抗带宽为12.5% （3.53-3.99 THz）。两种天线均具有良好的分集性能，包络相关系数（ECC）为0.03，指令增益（DG）为9.95 dB；总主动反射系数（TARC） <−10 dB，信道容量损耗（CCL） < 0.35 bit /s/Hz，可用于生物医学应用、高频电信、传感应用、生物和天体物理洞察。

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

International Journal of Numerical Modelling-Electronic Networks Devices and Fields 工程技术-工程：电子与电气

CiteScore

4.60

自引率

6.20%

发文量

101

审稿时长

>12 weeks

期刊介绍： Prediction through modelling forms the basis of engineering design. The computational power at the fingertips of the professional engineer is increasing enormously and techniques for computer simulation are changing rapidly. Engineers need models which relate to their design area and which are adaptable to new design concepts. They also need efficient and friendly ways of presenting, viewing and transmitting the data associated with their models. The International Journal of Numerical Modelling: Electronic Networks, Devices and Fields provides a communication vehicle for numerical modelling methods and data preparation methods associated with electrical and electronic circuits and fields. It concentrates on numerical modelling rather than abstract numerical mathematics. Contributions on numerical modelling will cover the entire subject of electrical and electronic engineering. They will range from electrical distribution networks to integrated circuits on VLSI design, and from static electric and magnetic fields through microwaves to optical design. They will also include the use of electrical networks as a modelling medium.