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Tuesday, 29 November 2011 12:04

Japanese outfit creates super transmitting chip

Written by Nick Farell

y exclamation

Should go up to 30Gbps

Japanese semiconductor outfit Rohm has built a chip and antenna that can transmitting 1.5Gbps and should be able to manage 30Gbps soon. The fastest 802.11 (WiFi) transmission speeds can only manage a limp 150Mbps, and the incoming WiGig standard peaks at 7Gbps.

What the boffins think is significant is that the Rohm has managed to set up the reception and transmission of terahertz waves (300GHz to 3THz) using a chip and antenna that’s just two centimeters long. It will only cost $5 to make when it comes market in a few years. Current terahertz-level gear is large, expensive, and only capable of data rates of 100Mbps.

Sadly it is not going to replace standard 2 and 5Ghz home networks, since it is such a high frequency it has to be directional to within a millimetre. Terahertz signals also fall prey to atmospheric radiation.

More here.


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0 #1 hoohoo 2011-11-29 19:53
Like the article notes, attenuation from merely the atmosphere as a function of distance at terahertz range is significant.

Mebbe this will be useful communicating in outer space. Talking to probes in outer solar system at 1.5+ Gb/s would be nice.
 

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