面向未来大容量通信的太赫兹无线通信技术

Terahertz wireless communication technology for future large-capacity communication

随着现代社会的发展,信息需求量快速增长,低频段频谱资源逐渐耗尽,无线通信频谱开始向着太赫兹波段(0.1 THz~10 THz)拓展,太赫兹通信技术已然成为未来大容量通信的重要发展方向之一。围绕着太赫兹通信技术,介绍了太赫兹通信特点及其应用场景,太赫兹通信用核心元器件的发展,国内外现有成果对比以及未来可能的发展趋势。同时,分别对微波光子学太赫兹通信系统、全固态太赫兹混频通信系统和直接调制太赫兹通信系统三种不同架构的系统进行分析和讨论,并对太赫兹通信技术的发展趋势以及未来应用场景进行了探讨。

With the development of modern society,the demand of information is exploding,which results in the insufficiency of the low frequency spectrum.The frequency is expanding to terahertz frequency band(0.1 THz~10 THz).Nowadays,the terahertz communication technology has become one of the key trends of future large-capacity communication.Aiming at terahertz communication technology,we will introduce the characteristics and applied scenarios of terahertz communication.The development of core devices and the comparison of present communication system achievements at home and abroad,along with future development trends are illustrated in our article.Meanwhile,terahertz microwave photonics communication system,all-solid state terahertz mixer communication system and direct modulation terahertz communication system are also introduced and discussed as follows.Finally,we present the development tendency of terahertz communication technology and its future applied scenarios.