Fig. 2: Evaluation kit and digital data-stream detection as a function of the sub-THz wireless link distance.
From: High-speed graphene-based sub-terahertz receivers enabling wireless communications for 6G and beyond
a Schematic of the configuration containing polymethylpentene (TPX) lenses with a variable distance between the transmitter and the graphene receiver. On the bottom part, the optical image shows a side view of the fabricated PCB-integrated receiver mounted on a metal support, including DC pins and a SubMiniature version A (SMA) connector. The inset shows the optical image of the graphene receiver. b Collected eye diagrams at data rates of 0.4 and c 3 Gbits−1 with a distance of 0.5 m between the lenses and 0.64 m between the transmitter and receiver. The carrier frequency is 0.209 THz. d Bit error rate (BER) in log scale as a function of data rate detection for different distances of the sub-THz wireless link.
