Terahertz Band: Lighting up Next-Generation Wireless Communications  

作　　者：Hongqi Zhang Lu Zhang Xianbin Yu 

机构地区：[1]College of Information Science and Electronic Engineering,Zhejiang University,Hangzhou 310027,China [2]Zhejiang Lab,Hangzhou 310000,China

出　　处：《China Communications》2021年第5期153-174,共22页中国通信（英文版）

基　　金：supported by the National Key Research and Development Program of China(2020YFB1805700,2018YFB1801500&2018YFB2201700);the Natural National Science Foundation of China under Grant 61771424;the Natural Science Foundation of Zhejiang Province under Grant LZ18F010001 and Zhejiang Lab(no.2020LC0AD01).

摘　　要：With the explosion of wireless data rates,the terahertz(THz)band(0.1–10 THz)is envisioned as a promising candidate to break the existing bandwidth bottleneck and satisfy the ever-increasing capacity demand.The THz wireless communications feature a number of attractive properties,such as potential terabit-per-second capacity and high energy efficiency.In this paper,an overview on the state-of-the-art THz communications is studied,with a special focus on key technologies of THz transceivers and THz communication systems.The recent progress on both electronic and photonic THz transmitters are presented,and then the THz receivers operating in direct-and heterodyne reception modes are individually surveyed.Based on the THz transceiver schemes,three kinds of THz wireless communication systems are reviewed,including solid-state electronic systems,photonics-assisted systems and all-photonics systems.The prospective key enabling technologies,corresponding challenges and research directions for lighting up high-speed THz communication systems are discussed as well.

关 键 词：terahertz communication 6th-generation terahertz photonics terahertz transceivers terahertz waves 

分 类 号：TN92[电子电信—通信与信息系统]