High-speed 0.22 THz communication system with 84 Gbps for real-time uncompressed 8K video transmission of live events

Ke Liu, Yinian Feng (), Chong Han (), Bo Chang, Zhi Chen (), Zicheng Xu, Lingxiang Li, Bo Zhang (), Yihui Wang and Qiang Xu
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Ke Liu: University of Electronic Science and Technology of China (UESTC)
Yinian Feng: University of Electronic Science and Technology of China (UESTC)
Chong Han: Shanghai Jiao Tong University
Bo Chang: University of Electronic Science and Technology of China (UESTC)
Zhi Chen: University of Electronic Science and Technology of China (UESTC)
Zicheng Xu: University of Electronic Science and Technology of China (UESTC)
Lingxiang Li: University of Electronic Science and Technology of China (UESTC)
Bo Zhang: University of Electronic Science and Technology of China (UESTC)
Yihui Wang: University of Electronic Science and Technology of China (UESTC)
Qiang Xu: University of Electronic Science and Technology of China (UESTC)

Nature Communications, 2024, vol. 15, issue 1, 1-11

Abstract: Abstract Terahertz frequency band (0.1 ~ 10 THz) can provide ultra-high transmitting rates for massive emerging applications. However, due to the radio frequency impairments and limited signal processing property of baseband devices, it is difficult for the current terahertz communication systems to be used in real applications. In this work, we report a 0.22 THz communication system, which can provide 84 Gbps air interface rate over 1.26 kilometers distance. Such a system is underpinned by three breakthroughs, namely, integrating the reported terahertz wireless communication system, redesigning the signal processing in baseband devices, and increasing the cut-off frequency and transmitting power of radio frequency component by parameter optimizing. Being applied to realize the real-time transmission of the uncompressed 8K ultra high-definition video in the 31st International University Sports Federation in Chengdu, China, this work is a leaping advancement to enable terahertz systems from experiment to promising applications.

Date: 2024
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DOI: 10.1038/s41467-024-52370-x

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