The 300GHz band, which has a continuous 44GHz frequency band from 252 to 296GHz, was identified for wireless applications in WRC-19. The 300GHz band has the potential to achieve significantly higher transmission rates than conventional wireless communications. In addition, atmospheric attenuation is relatively low. Therefore, research on the 300GHz band has been attracting a lot of attention. Although compound semiconductors with excellent high-frequency performance have been used for the realization of ultrahigh-frequency transceivers in the 300GHz band, CMOS integrated circuits are advantageous for practical applications in the 300GHz band. We have realized a 300GHz single chip transceiver using CMOS integrated circuits by using parallel connections for multipliers and mixers. This paper presents an overview of the 300GHz band CMOS transceiver. In addition, we discuss the challenges of using 300GHz ultrafast communication for long-distance transmission.

300GHz 频段具有从 252 到 296GHz 的连续 44GHz 频段，在 WRC-19 中被确定用于无线应用。300GHz 频段有可能实现比传统无线通信更高的传输速率。此外，大气衰减相对较低。因此，300GHz频段的研究一直备受关注。尽管具有优异高频性能的化合物半导体已被用于实现 300GHz 频段的超高频收发器，但 CMOS 集成电路在 300GHz 频段的实际应用中具有优势。我们通过对乘法器和混频器使用并行连接，实现了使用 CMOS 集成电路的 300GHz 单芯片收发器。本文概述了 300GHz 频段 CMOS 收发器。