Article Image
IPFS News Link • Communications

Japan's next generation terahertz communication will push to 400 gigabits per second

• by brian wang

Unused terahertz waves can be applied to high-speed wireless transmission since a wide frequency band can be secured. They implemented a mixer circuit that applied a unique proprietary high isolation design technology with an Indium phosphide high electron mobility transistor (InP-HEMT). This enlarged the transmission bandwidth, which is a problem in the conventional 300 GHz band wireless front end. It also improved the signal-to-noise ratio (SNR). They realized a 300 GHz band wireless front-end module, and we achieved wireless transmission of 100 Gbps (gigabits per second).

This enables 100 Gbps wireless transmission with one wave (one carrier). They can extend to multiple carriers by making use of the wide frequency band of 300 GHz band, and use spatial multiplexing technology such as MIMO and OAM.