双宽带液晶可编程超表面及其在太赫兹无线通信中的应用

Yuan Fu; Yuanbo Li; Xiaojian Fu; Lu Xu; Yujie Liu; Qun Yan Zhou; Jun Yang; Chong Han; Jun Yan Dai; Qiang Cheng; Tie Jun Cui

doi:10.1016/j.eng.2025.08.040

工程（英文） ›› 2026, Vol. 59 ›› Issue (4) : 352 -363. DOI: 10.1016/j.eng.2025.08.040

研究论文

双宽带液晶可编程超表面及其在太赫兹无线通信中的应用

Yuan Fu ^a^,^# ,
Yuanbo Li ^b^,^# ,
Xiaojian Fu ^a^,^* ,
Lu Xu ^c ,
Yujie Liu ^a ,
Qun Yan Zhou ^a ,
Jun Yang ^c ,
Chong Han ^b^,^* ,
Jun Yan Dai ^a ,
Qiang Cheng ^a ,
Tie Jun Cui ^a^,^*

作者信息 +

A Dual-Broadband Liquid-Crystal Programmable Metasurface and Its Application in Terahertz Wireless Communications

Yuan Fu ^a^,^# ,
Yuanbo Li ^b^,^# ,
Xiaojian Fu ^a^,^* ,
Lu Xu ^c ,
Yujie Liu ^a ,
Qun Yan Zhou ^a ,
Jun Yang ^c ,
Chong Han ^b^,^* ,
Jun Yan Dai ^a ,
Qiang Cheng ^a ,
Tie Jun Cui ^a^,^*

Author information +

文章历史 +

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Abstract

Terahertz communication technology is envisioned as a promising candidate for the pivotal spectrum technology in future wireless communication networks. However, the limited penetration ability of terahertz waves makes line-of-sight (LoS) transmission indispensable, hindering the extensive application of terahertz communications. In this work, a novel liquid-crystal programmable metasurface (LCPM) is proposed for the first time, which can effectively achieve dual-broadband beam manipulation to improve link stability and extend coverage for terahertz communications in non-line-of-sight (NLoS) scenarios. The LCPM is operated in both the W band that covers 94 GHz and the D band that covers 140 GHz, corresponding to x-polarized and y-polarized wave incidence, respectively. Based on the proposed LCPM, realistic NLoS terahertz communication links are established and showcased. Communication measurements substantiate that the LCPM is capable of realizing extensive dynamic channel regulations and long-distance communications across both bands in various modulation schemes, supporting real-time high-speed video transmission. The experimental results validate the feasibility of employing the LCPM for terahertz wireless communications, paving the way for developing and implementing ubiquitous terahertz communication networks even with LoS blockage.

关键词

Key words

Programmable metasurface / Terahertz communication / Reconfigurable intelligent surface / Dual-frequency / Broadband / Beamforming

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Yuan Fu,Yuanbo Li,Xiaojian Fu,Lu Xu,Yujie Liu,Qun Yan Zhou,Jun Yang,Chong Han,Jun Yan Dai,Qiang Cheng,Tie Jun Cui. 双宽带液晶可编程超表面及其在太赫兹无线通信中的应用[J]. 工程（英文）, 2026, 59(4): 352-363 DOI:10.1016/j.eng.2025.08.040