A novel-shaped THz MIMO antenna with high bandwidth for advanced 6G wireless application

A novel-shaped THz MIMO antenna with high bandwidth for advanced 6G wireless application

6G Communication
Graphene
High-gain
Resistance-inductance-capacitance
THz antenna
Wide-bandwidth

This article presents an industrial and innovation highly efficient drone-shaped slotted graphene-based multiple input multiple output (MIMO) antenna with improved isolation, designed for high-speed short-range communication, video rate imaging, medical imaging, and explosive detection in the THz band. The proposed antenna is constructed on an 88×244 μm2 polyimide substrate. Key performance parameters such as reflection coefficient, gain, directivity, radiation pattern, and antenna efficiency are evaluated at the resonating frequencies of 1.7 THz, 3.35 THz, and 5.31 THz, covering a wide bandwidth of 4.88 THz with a reflection coefficient of less than -10 dB. The antenna achieves a maximum gain of 13.92 dB and a radiation efficiency of 95.77% within the resonating band. The MIMO design parameters include an envelope correlation coefficient (ECC) of 0.00015, a diversity gain (DG) of 9.9992, and an isolation of less than -31.55 dB between its elements across the entire bandwidth. The outcomes from CST simulations were verified by designing and simulating a similar resistance-inductance-capacitance (RLC) circuit in advanced design system (ADS), with both simulators producing comparable reflection coefficients. These features underscore the potential of the proposed antenna, utilizing simulations and an equivalent RLC circuit model, as a robust candidate for THz band applications in 6G wireless communication.

Kamal Hossain Nahin1, Jamal Hossain Nirob1, Md. Ashraful Haque1, Narinderjit Singh Sawaran Singh2, Redwan Al Mahmud Bin Asad Ananta1, Md. Kawsar Ahmed1, Md. Sharif Ahammed1, Liton Chandra Paul3

Journal homepage: http://journal.uad.ac.id/index.php/TELKOMNIKA

Mar 11, 2025

PERI IRAWAN

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