全电子的300 GHz太赫兹无线通信

Demonstration of 300 GHz all-electronic terahertz wireless communications

摘要:

太赫兹波作为一种新的高频段资源，有着更高的载波频率，可以承受更大的带宽和传输速率，成为新一代宽带通信中的研究热点。本文基于纯电子学器件成功搭建300 GHz的太赫兹无线通信系统，其发射机结构简单，复杂度相比光子辅助系统更低。进行了无线距离50 m和100 m的信号传输实验，对系统的传输性能进行了实验探究，验证了传输性能和传输速率、发送电压之间的关系。目前，在不使用功率放大器(PA)的情况下，100 m是全电子太赫兹无线传输系统能达到的最远距离。

Abstract:

As a new type of high-frequency band resource, terahertz wave has a higher carrier frequency, it can withstand larger bandwidth and transmission rate, therefore, it has become a research hotspot for new generation broadband communications. A 300 GHz terahertz wireless communication system is constructed based on pure electronic devices, in which the transmitter has a simple structure and the whole system is less complex than the photon-assisted system. Signal transmission experiments with wireless distances of 50 m and 100 m are conducted. The transmission performance of the system is explored and the relationships among the transmission performance, transmission rate and transmitting voltage are studied. As far as we know, 100 m is the longest distance that an all-electronic terahertz wireless transmission system can achieve without using a Power Amplifier(PA).