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300-GHz-Band OFDM Video Transmission with CMOS TX/RX Modules and 40dBi Cassegrain Antenna toward 6G
Yohei MORISHITA Sangyeop LEE Toshihiro TERAOKA Ruibing DONG Yuichi KASHINO Hitoshi ASANO Shinsuke HARA Kyoya TAKANO Kosuke KATAYAMA Takenori SAKAMOTO Naganori SHIRAKATA Koji TAKINAMI Kazuaki TAKAHASHI Akifumi KASAMATSU Takeshi YOSHIDA Shuhei AMAKAWA Minoru FUJISHIMA
IEICE TRANSACTIONS on Electronics
Publication Date: 2021/10/01
Online ISSN: 1745-1353
Type of Manuscript: Special Section PAPER (Special Section on Microwave and Millimeter-Wave Technologies)
6G, THz, 300GHz, Cassegrain antenna, OFDM, CMOS, transmitter, receiver, module,
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This paper demonstrates 300GHz terahertz wireless communication using CMOS transmitter (TX) and receiver (RX) modules targeting sixth-generation (6G). To extend communication distance, CMOS modules with WR-3.4 waveguide interface and a high-gain antenna of 40dBi Cassegrain antenna are designed, achieving 36Gbps throughput at a 1m communication distance. Besides, in order to support orthogonal frequency-division multiplexing (OFDM), a self-heterodyne architecture is introduced, which effectively cancels the phase noise in multi-carrier modulation. As a proof-of-concept (PoC), the paper successfully demonstrates real-time video transfer at a 10m communication distance using fifth-generation (5G) based OFDM at the 300GHz frequency band.