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Old 17th May 2012, 11:09   #1
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Japanese T-ray tech boasts 3Gb/s wireless speeds

Japanese researchers have successfully transmitted wireless data at 3Gb/s using 'T-ray' technology.

http://www.bit-tech.net/news/hardwar...y-technology/1
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Old 17th May 2012, 11:41   #2
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I predict a Resonance Cascade with those high frequencies!
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Old 17th May 2012, 11:43   #3
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I predict a Resonance Cascade with those high frequencies!
"I never thought I'd see a resonance cascade failure, let alone cause one!"
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Old 17th May 2012, 13:50   #4
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Old 17th May 2012, 15:04   #5
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Now we just need storage with the ability to read/write at similar speeds.
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Old 17th May 2012, 15:18   #6
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Now we just need storage with the ability to read/write at similar speeds.
Close, but not close enough methinks.
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Old 17th May 2012, 15:23   #7
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Now we just need storage with the ability to read/write at similar speeds.
That's not a problem: pretty much any mid- to top-end consumer SSD can handle 500MB/s read and write, which is 4Gb/s.
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Old 17th May 2012, 15:47   #8
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One major problem I foresee: bad science.

If wireless is bad for us (my acupuncturist homoeopath told me it was, so it must be true) and that works in the GHz range - so surely something that works in the THz range must be a thousand times worse for us?

How long before the luddites suggest something like that?

On a more serious note, any wireless system that is capable of working through my 2 foot thick walls would be very welcome by me. It's a shame that we're probably at least 5 years away before a viable commercial version is available...
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Old 17th May 2012, 16:51   #9
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The problem with getting workable solutions at this frequency is that it gets much harder to have a reasonable output power, which means short range. One of the other main problems is tuning which involves tailor made parts and lots of testing/retuning to get right (although that's going on my experience of top end R&D equipment so it may be that they've cracked it for lower/consumer parts).
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Old 18th May 2012, 17:46   #10
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Old 18th May 2012, 18:01   #11
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that's really high freq.. I'd like to see the antennae that delivers- sounds like a gimmick if it has no range
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Old 18th May 2012, 19:34   #12
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oh well threw some numbers into a modeler.. you could theoretically get 4x the distance using a small 3 element yagi =] but the f/b ratio is horrible not to mention the pattern, needs a lot of tweaking.. least the numbers put it in the ballpark though

why not just run a cable




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Old 19th May 2012, 15:12   #13
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Why are they calling this range T-ray, when it already has a name (Far-infrared)?
http://en.wikipedia.org/wiki/Electro...netic_spectrum
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