"GiFi" — Short-Range, 5-Gbps Wireless For $10/Chip

mickq writes "The Age reports that Melbourne scientists have built and demonstrated tiny CMOS chips, 5 mm per side, that can transmit 5 Gbps over short distances — about 10 m. The chip features a tiny 1-mm antenna, a power amp that is only a few microns wide, and power consumption of only 2 W. 'GiFi' appears set to revolutionize short-distance data transmission, and transmits in the relatively uncrowded 60GHz range. Best of all, the chip is only about a year away from public release, and will only cost around US $9.20 to produce."

Comments

Pronunciation of Gi-Fi

[xdc]

How do you pronounce Gi-Fi? "guy-fie"? "giffy"? "jiffy"?

A lot going around

[bandersnatch]

And this is different from these others... how exactly?

http://www.vubiq.com/news.php
http://gigaom.com/2008/02/20/60-ghz60-second-hd-movie-downloads/
http://bwrc.eecs.berkeley.edu/Research/RF/ogre_project/

Re:Bluetooth replacement?

[squizzar]

It consumes two watts of power. It is not a Bluetooth replacement. Using my phone for comparison: 1100mAh 3.7 V 3.7V / 2W = 1.85 A 1.1 Ah / 1.85 A = 0.59 Hours = approx. 36 Minutes. I know it won't be transmitting the whole time, but essentially this will be useless in a mobile application.

Re:Bluetooth replacement?

[ElGanzoLoco]

That said, what else would it really replace or be used in?

Short-range wireless video transmission, for one. From your IPTV box to your TV(s).

Case in point: at home, we just ditched cable and DSL and switched to an optic fibre triple-play (internet/IP TV/telephone) offer, which is much cheaper. For technical reasons the main receiver box can only be located near our entrance door, while the TV sits at the other side of the house.

Out of three possible solutions, none work well:
-laying an ethernet cable in the ceiling is possible, but a headache
-IP over the power lines is unreliable
-WiFi, regardless of the flavor, doesn't provide enough bandwidth (keep in mind that the box streams several HDTV channels at once, for instance when recording one while watching another)

So in our case, the proposed chip and protocol sounds ideal. 10m doesn't seem like a lot, but it's more than enough to cover most apartments / houses, and I expect it will be possible to get signal at much greater distances, with degraded signal. 2.5Gbps over 20m, wirelessly, would rock.