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2026-09-13
Graphene-Based Multi-Band Reconfigurable Terahertz Antenna with Wide Tuning Range
By
Progress In Electromagnetics Research C, Vol. 173, 230-242, 2026
Abstract
This work demonstrates the design of a terahertz (THz) antenna that utilizes graphene to achieve frequency-reconfigurable multiband operation. The proposed design integrates electrically controlled graphene switches within precisely defined slots to dynamically modify the distribution of surface currents, enabling a highly multi-band, frequency-reconfigurable antenna. The antenna consists of perpendicular (vertical and horizontal) slots, supported by six graphene switches, whose operating frequencies are adjusted by controlling the graphene's chemical potential. The proposed antenna covers a wide frequency range from 0.288 to 2.501 THz, operating at 63 resonant frequencies and 58 impedance bands, achieved through 11 reconfiguration states (C1-C11). The proposed antenna is created on a 10 μm-thick Rogers RO3003 substrate with overall dimensions of 268 μm × 240 μm × 10 μm. The performance of the proposed antenna, including the reflection coefficient, gain, and radiation efficiency, was evaluated under different operating conditions. Due to its ability to reconfigure multiple frequency bands, this antenna is an ideal solution for dynamically adjustable, tunable THz communication systems.
Citation
Khalid Subhi Ahmad, Muhammad Inam Abbasi, Ahmed Jamal Abdullah Al-Gburi, and Mohamad Zoinol Abidin Abd Aziz, "Graphene-Based Multi-Band Reconfigurable Terahertz Antenna with Wide Tuning Range," Progress In Electromagnetics Research C, Vol. 173, 230-242, 2026.
doi:10.2528/PIERC26080603
References

1. Suryapaga, Venkataswamy and Vikas V. Khairnar, "Review on multifunctional pattern and polarization reconfigurable antennas," IEEE Access, Vol. 12, 90218-90251, 2024.
doi:10.1109/access.2024.3420426        Google Scholar

2. Ahmad, Khalid S., Fauziahanim C. Seman, Shipun A. Hamzah, Khaled Alhassoon, Tale Saeidi, Zahriladha Zakaria, and Ahmed Jamal Abdullah Al-Gburi, "Equivalent circuit model of antenna array utilizing an archimedean spiral sequential feed network for C-band applications," Progress In Electromagnetics Research B, Vol. 106, 151-165, 2024.
doi:10.2528/pierb24041403        Google Scholar

3. Subhi, Khalid, Fauziahanim Che Seman, Shipun Anuar Hamzah, Goh Chin Hock, and Shaharil Mohd Shah, "Circuit model for microstrip array antenna with defected ground structures for mutual coupling reduction and beamforming applications," International Journal of Integrated Engineering, Vol. 13, No. 1, 101-119, 2021.
doi:10.30880/ijie.2021.13.01.010        Google Scholar

4. Ahmad, Khalid Subhi, M. Z. A. Abd. Aziz, and Ahmed J. A. Al-Gburi, "Compact frequency-reconfigurable slot patch antenna with gain enhancement via metasurface integration," Optik, Vol. 333, 172389, 2025.
doi:10.1016/j.ijleo.2025.172389        Google Scholar

5. Bayer Keskin, Sena Esen, Slawomir Koziel, and Stanislaw Szczepanski, "Frequency reconfigurable PIN diode-based reuleaux-triangle-shaped monopole antenna for UWB/Ku band applications," Scientific Reports, Vol. 15, No. 1, 6555, 2025.
doi:10.1038/s41598-025-91108-7        Google Scholar

6. Zhang, Yujie, Zixiang Han, Shiwen Tang, Shanpu Shen, Chi-Yuk Chiu, and Ross Murch, "A highly pattern-reconfigurable planar antenna with 360° single- and multi-beam steering," IEEE Transactions on Antennas and Propagation, Vol. 70, No. 8, 6490-6504, 2022.
doi:10.1109/tap.2022.3161514        Google Scholar

7. Ahmad, Khalid Subhi and Mohamad Zoinol Abidin Abd. Aziz, "Pattern reconfigurable planar antenna array based on two circular defected ground structure," Przegląd Elektrotechniczny, Vol. 7, No. 1, 52-55, 2021.
doi:10.15199/48.2021.07.10        Google Scholar

8. Ahmad, Khalid Subhi, Mohamad Zoinol Abidin Abd. Aziz, and Nuruliswa Binti Abdullah, "A dual-band frequency reconfigurable antenna array based on reconfigurable defected ground structure," 2020 IEEE International RF and Microwave Conference (RFM), 1-4, Kuala Lumpur, Malaysia, 2020.
doi:10.1109/RFM50841.2020.9344790

9. Ahmad, Khalid Subhi and Mohamad Zoinol Abidin Abd. Aziz, "Frequency reconfigurable array antenna with modified circular slot," 2022 IEEE International RF and Microwave Conference (RFM), 1-4, Kuala Lumpur, Malaysia, 2022.
doi:10.1109/RFM56185.2022.10064819

10. Ahmad, Khalid Subhi and Mohamad Zoinol Abidin Abd. Aziz, "Frequency reconfigurable microstrip antenna array based on reconfigurable defected ground structure," Przegląd Elektrotechniczny, Vol. 8, No. 21, 114-120, 2021.
doi:10.15199/48.2021.08.20        Google Scholar

11. Zhao, Xiongwen, Sharjeel Riaz, and Suiyan Geng, "A reconfigurable MIMO/UWB MIMO antenna for cognitive radio applications," IEEE Access, Vol. 7, 46739-46747, 2019.
doi:10.1109/access.2019.2909810        Google Scholar

12. Ahmad, Khalid Subhi and Ahmed Jamal Abdullah Al-Gburi, "Graphene-based frequency reconfigurable slot antenna for terahertz applications," Optik, Vol. 330, 172343, 2025.
doi:10.1016/j.ijleo.2025.172343        Google Scholar

13. Alibakhshikenari, Mohammad, Esraa Mousa Ali, Mohammad Soruri, Mariana Dalarsson, Mohammad Naser-Moghadasi, Bal S. Virdee, Caslav Stefanovic, Anna Pietrenko-Dabrowska, Slawomir Koziel, Stanislaw Szczepanski, and Ernesto Limiti, "A comprehensive survey on antennas on-chip based on metamaterial, metasurface, and substrate integrated waveguide principles for millimeter-waves and terahertz integrated circuits and systems," IEEE Access, Vol. 10, 3668-3692, 2022.
doi:10.1109/access.2021.3140156        Google Scholar

14. Shi, Yi, Xiaodong Zhang, Qinxi Qiu, Yinrui Gao, and Zhiming Huang, "Design of terahertz detection antenna with fractal butterfly structure," IEEE Access, Vol. 9, 113823-113831, 2021.
doi:10.1109/access.2021.3103205        Google Scholar

15. Dragoman, Mircea and Martino Aldrigo, "Graphene rectenna for efficient energy harvesting at terahertz frequencies," Applied Physics Letters, Vol. 109, No. 11, 113105, 2016.
doi:10.1063/1.4962642        Google Scholar

16. Wu, Yongle, Meijun Qu, Lingxiao Jiao, Yuanan Liu, and Zabih Ghassemlooy, "Graphene-based Yagi-Uda antenna with reconfigurable radiation patterns," AIP Advances, Vol. 6, No. 6, 065308, 2016.
doi:10.1063/1.4953916        Google Scholar

17. Luo, Yanbin, Qingsheng Zeng, Xin Yan, Yong Wu, Qichao Lu, Chaofan Zheng, Nan Hu, Wenqing Xie, and Xia Zhang, "Graphene-based multi-beam reconfigurable THz antennas," IEEE Access, Vol. 7, 30802-30808, 2019.
doi:10.1109/access.2019.2903135        Google Scholar

18. Kiani, Narges, Farzad Tavakol Hamedani, and Pejman Rezaei, "Implementation of a reconfigurable miniaturized graphene-based SIW antenna for THz applications," Micro and Nanostructures, Vol. 169, 207365, 2022.
doi:10.1016/j.micrna.2022.207365        Google Scholar

19. Moradi, Khatereh, Ali Pourziad, and Saeid Nikmehr, "A frequency reconfigurable microstrip antenna based on graphene in Terahertz Regime," Optik, Vol. 228, 166201, 2021.
doi:10.1016/j.ijleo.2020.166201        Google Scholar

20. Liu, Qimeng, Renbin Zhong, Boli Xu, Jiale Dong, Gefu Teng, Ke Zhong, Zhenhua Wu, Kaichun Zhang, Min Hu, and Diwei Liu, "Terahertz reconfigurable planar graphene hybrid Yagi-Uda antenna," Nanomaterials, Vol. 15, No. 7, 488, 2025.
doi:10.3390/nano15070488        Google Scholar

21. Varshney, Arun Kumar, Nagendra P. Pathak, and Debabrata Sircar, "Low-profile frequency reconfigurable graphene-based dipole antennas loaded with wideband metasurface for THz applications," Plasmonics, Vol. 17, No. 6, 2351-2363, 2022.
doi:10.1007/s11468-022-01720-w        Google Scholar

22. Liang, Feng, Zhen-Zhong Yang, Yu-Xi Xie, Hao Li, Deshuang Zhao, and Bing-Zhong Wang, "Beam-scanning microstrip quasi-Yagi-Uda antenna based on hybrid metal-graphene materials," IEEE Photonics Technology Letters, Vol. 30, No. 12, 1127-1130, 2018.
doi:10.1109/lpt.2018.2835840        Google Scholar

23. Moradi, Khatereh, Ali Pourziad, and Saeid Nikmehr, "An efficient graphene-based reconfigurable terahertz ring antenna design," AEU --- International Journal of Electronics and Communications, Vol. 149, 154177, 2022.
doi:10.1016/j.aeue.2022.154177        Google Scholar

24. Poorgholam-Khanjari, Shima and Ferdows B. Zarrabi, "Reconfigurable Vivaldi THz antenna based on graphene load as hyperbolic metamaterial for skin cancer spectroscopy," Optics Communications, Vol. 480, 126482, 2021.
doi:10.1016/j.optcom.2020.126482        Google Scholar

25. Xu, Zheng, Xiaodai Dong, and Jens Bornemann, "Design of a reconfigurable MIMO system for THz communications based on graphene antennas," IEEE Transactions on Terahertz Science and Technology, Vol. 4, No. 5, 609-617, 2014.
doi:10.1109/tthz.2014.2331496        Google Scholar

26. Gusynin, V. P. and S. G. Sharapov, "Transport of Dirac quasiparticles in graphene: Hall and optical conductivities," Physical Review B --- Condensed Matter and Materials Physics, Vol. 73, No. 24, 245411, 2006.
doi:10.1103/physrevb.73.245411        Google Scholar

27. Ullah, Zaka, Gunawan Witjaksono, Illani Nawi, Nelson Tansu, Muhammad Irfan Khattak, and Muhammad Junaid, "A review on the development of tunable graphene nanoantennas for terahertz optoelectronic and plasmonic applications," Sensors, Vol. 20, No. 5, 1401, 2020.
doi:10.3390/s20051401        Google Scholar