Summary
Asia-Pacific Microwave Conference
2022
Session Number:WE2-F1
Session:
Number:WE2-F1-1
Will Terahertz Communication Change the World?
Minoru Fujishima,
pp.-
Publication Date:2022/11/29
Online ISSN:2188-5079
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Summary:
In the sixth generation (6G), terahertz communications, including the 300 GHz band, are finally being used for wireless communications. 300 GHz band has a contiguous 44 GHz frequency band specified for communications. Therefore, communication speeds in excess of 100 Gb/s are expected. On the other hand, however, it has been thought that the higher the frequency, the shorter the communication distance becomes, limiting it to short-distance communications. However, free-space optical communication, which has a much higher frequency than terahertz, enables long-distance communication between satellites. If conditions are constant, there is no theoretical relationship between carrier frequency and communication distance. However, in order to expand the frequency bandwidth to achieve a high data rate and to ensure the required signal-to-noise ratio, it is necessary to increase the receiving power. Therefore, beamforming is essential for wideband communications to increase receive power using limited transmission power. Beamforming also improves power efficiency during transmission, thus reducing overall system energy consumption. In this talk, the future of terahertz communications will be discussed. Consider how the world would change if ideal terahertz communications could be realized.