16 May 2012 Last updated at 03:00 ET
Milestone for wi-fi with 'T-rays'
RTD terahertz wi-fi deviceThe device will be improved first by adding an
* <http://www.bbc.co.uk/2/hi/science/nature/8314419.stm> 'Quick test'
Researchers in Japan have smashed the record for wireless data transmission
The data rate is 20 times higher than the best commonly used wi-fi standard.
As consumers become ever more hungry for high data rates, standard
The research, <http://dx.doi.org/10.1049/el.2012.0849> published in
The band lies between the microwave and far-infrared regions of the
Despite the name, the band informally makes use of frequencies from about
It is used principally for imaging in research contexts, as terahertz waves
Until recently, the technology required both to generate and detect these
That looks set to change; in November electronic component firm ROHM
Terahertz wi-fi would probably only work within ranges of about 10m, but
The new work, by researchers from the Tokyo Institute of Technology,
At the heart of the team's 1mm-square device is what is known as a resonant
Tunnelling diodes have the unusual characteristic that the voltage across
RTDs are designed such that this process makes the diode "resonate", which
The team is now working to improve their proof-of-principle device and
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