Frequency selective surface based on Ti₃C₂T_x MXene for dual band Wi-Fi applications

Abstract

A dual-band frequency selective surface (FSS) employing Ti₃C₂T_x deposited on a polyethylene terephthalate (PET) layer is proposed for Wi-Fi applications. The structure can afford dual-frequency passbands with central frequencies of 2.4 GHz and 5.5 GHz and realize large bandwidths covering 1.7-2.9 GHz and 4.9-6 GHz for -3 dB reference, which are bands of Wi-Fi communication. Featured by the use of 4.3 μm-thick Ti₃C₂T_x, the FSS reduces the thickness by 16% compared to that using 35 μm thick copper, which renders it preferable for flexible and ultrathin applications. Moreover, the proposed FSS has the advantages of polarization and incident-angle insensitivity as well as the ease of fabrication. The proposed FSS based on Ti₃C₂T_x MXene for the first time may provide a further step in the development of ultrathin, lightweight and flexible devices for wireless communication, such as filters, absorbers and modulators.

KEYWORDS:

• Ti₃C₂T_x
• MXene
• frequency selective surface
• dual-band
• Wi-Fi

Disclosure statement

No potential conflict of interest was reported by the author(s).

Additional information

Notes on contributors

Zi-Fan Meng

Zi-Fan Meng received the B.S. degree from Qingdao University, Qingdao, China, in 2020. He is currently a graduate student at Hefei University of Technology, Hefei, China. His research interests include the design and analysis of frequency selective surfaces.

Zhi Tao

Zhi Tao received the B.S. degree from Hefei University of Technology, Xuancheng, China, in 2018. He is currently a graduate student at Hefei University of Technology, Hefei, China. His research interests include the design of microwave and terahertz devices.

Feng Lan

Feng Lan received the B.S. degree from Anhui University of Science and Technology, Huainan, China, in 2019. She is currently a graduate student at Hefei University of Technology, Hefei, China. Her research interests include the design of microwave and terahertz devices.

Jiu-Fu Ruan

Jiu-Fu Ruan received the Doctor degree from Institute of Plasma Physics, Chinese Academy of Sciences, Hefei, China, in 2010. Currently, he is an Associate Professor at Hefei University of Technology, Hefei, China. His research areas of interests include microwave/millimeter-wave/terahertz passive devices and circuits, metamaterials, miniature and planar antennas, microfabrication of terahertz devices.

Fei Cai

Fei Cai received the M.S. degree from Nanchang Hangkong University, Nanchang, China, in 2007. He is currently a Lecturer at Hefei University of Technology, Hefei, China. His research interests include microwave passive devices and circuits.

Tao Wang

Tao Wang received the Doctor degree from University of Science and Technology of China, Hefei, China, in 2015. He is currently an Associate Professor at Hefei University of Technology, Hefei, China. His research interests include materials and devices for microwave communications.