For supporting communication links with increased date-rate between the base-station and the user, more higher operating frequencies with much broader bandwidth have to be used. Terahertz (THz) bands are very promising to meet such demands and International Telecommunication Union (ITU) has approved a THz-band for the fifth-generation (5G) mobile communication and beyond in 2019, which is driving the research interests in THz-wave wireless communication systems worldwide. The key challenging now is how to reduce the entire THz-wave systems’ sizes and weights, and particularly the costs.

中文翻译：

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用于 5G 及以后的基于 BiCMOS 的高性能太赫兹波耦合器

为了支持基站和用户之间具有更高数据速率的通信链路，必须使用更高的工作频率和更宽的带宽。太赫兹 (THz) 频段非常有希望满足此类需求，国际电信联盟 (ITU) 已于 2019 年批准了用于第五代 (5G) 及以后移动通信的太赫兹频段，这推动了太赫兹波的研究兴趣全球无线通信系统。现在的关键挑战是如何减小整个太赫兹波系统的尺寸和重量，尤其是成本。