18 June 2018
| Natalie Bannerman
NTT and the Tokyo Institute of Technology have developed a high-speed IC for wireless front-end that operates on a terahertz frequency band.
NTT and the Tokyo Institute of Technology have developed a
high-speed IC for wireless front-end that operates on a
terahertz frequency band.Through the partnership the two also
achieved a 100Gbps wireless data rate on the 300GHz band.
During development the joint team used a mixer circuit that
leveraged proprietary high isolation design technology with an
Indium phosphide high electron mobility transistor (InP-HEMT).
NTT said that in doing so it expanded the transmission
bandwidth which is typically a problem in the 300GHz band
wireless front end. The process also improved the
signal-to-noise-ratio (SNR). In addition, using a 300GHZ
wireless front-end module, achieved wireless transmission of
Looking ahead the parties say that it can extend the
technology to multiple carriers by making use of the wide
frequency of the 300GHz band, as well as the spatial
multiplexing technology such as MIMO and OAM. In doing so the
two expect to develop high-speed IC technology that enables
wireless transmission of 400Gbps. This is about 400 times the
capacity of the current LTE and Wifi capabilities, and 40 times
more than what 5G is expected to deliver.
The technology is expected to act as a precursor to the
utilization of the unused terahertz wave frequency band in both
communications and non-communications fields.
NTT Communications, the network management, security and
solutions services subsidiary of NTT, recently launched its
managed Microsoft Azure Stack solution in Hong Kong.
Combining NTT Com’s expertise in managed services
and Microsoft’s cloud technology, the new solution
aims to meet businesses’ need for agility and meet
the challenges they face around security and compliance in the
Tokyo Institute of Technology,