标题： 高速石墨烯基太赫兹以下接收器，使6G及未来无线通信成为可能 显示英文标题

标题： High-Speed Graphene-based Sub-Terahertz Receivers enabling Wireless Communications for 6G and Beyond

摘要： 近年来，电信领域经历了无线数据流量前所未有的激增。 创新解决方案对于克服现有技术的固有局限性至关重要，尤其是在容量方面。 亚太赫兹（sub-THz）范围内的载波频率（~0.2-0.3 THz）可以为短距离无线应用提供更高的容量和较低的衰减。 在这里，我们展示了一种基于石墨烯的直接、被动且紧凑的亚太赫兹接收器，其性能优于最先进的亚太赫兹接收器。 这些基于石墨烯的接收器提供了一种成本效益高、与CMOS兼容、占地面积小的解决方案，可以满足6G技术的尺寸、重量和功耗（SWaP）要求。 我们利用一个亚太赫兹腔体，包括天线和背镜，放置在石墨烯通道附近，以克服石墨烯本身的低吸收率以及光活性区域和入射辐射面积之间的不匹配，这在亚太赫兹范围内尤为显著。 石墨烯接收器实现了每秒数千兆比特的数据速率，最大距离约为3米，设置限制的3 dB带宽为40 GHz，响应度高达0.16 A/W，可应用于芯片间通信和近距离设备间通信。 显示英文摘要

摘要： In recent years, the telecommunications field has experienced an unparalleled proliferation of wireless data traffic. Innovative solutions are imperative to circumvent the inherent limitations of the current technology, in particular in terms of capacity. Carrier frequencies in the sub-terahertz (sub-THz) range (~0.2-0.3 THz) can deliver increased capacity and low attenuation for short-range wireless applications. Here, we demonstrate a direct, passive and compact sub-THz receiver based on graphene, which outperforms state-of-the-art sub-THz receivers. These graphene-based receivers offer a cost-effective, CMOS-compatible, small-footprint solution that can fulfill the size, weight, and power consumption (SWaP) requirements of 6G technologies. We exploit a sub-THz cavity, comprising an antenna and a back mirror, placed in the vicinity of the graphene channel to overcome the low inherent absorption in graphene and the mismatch between the areas of the photoactive region and the incident radiation, which becomes extreme in the sub-THz range. The graphene receivers achieve a multigigabit per second data rate with a maximum distance of ~3 m from the transmitter, a setup-limited 3 dB bandwidth of 40 GHz, and a high responsivity of 0.16 A/W, enabling applications such as chip-to-chip communication and close proximity device-to-device communication.