Comments on: Nanoscale Wireless Technology http://www.chronowake.net/2008/12/nanoscale-wireless-technology/ A Waking Revolution™ Sun, 15 Nov 2009 19:40:23 +0000 hourly 1 http://wordpress.org/?v=3.0.1 By: Joe http://www.chronowake.net/2008/12/nanoscale-wireless-technology/comment-page-1/#comment-5 Joe Fri, 09 Jan 2009 19:34:29 +0000 http://www.chronowake.net/news/?p=13#comment-5 I'm an electrical engineer, but I still don't understand most of that paper! Things get pretty crazy at the nanoscale, eh? I’m an electrical engineer, but I still don’t understand most of that paper! Things get pretty crazy at the nanoscale, eh?

]]> By: Ryan Goldstein http://www.chronowake.net/2008/12/nanoscale-wireless-technology/comment-page-1/#comment-4 Ryan Goldstein Mon, 05 Jan 2009 01:10:25 +0000 http://www.chronowake.net/news/?p=13#comment-4 Good question. While MWNTs are easier to make, their physical properties are a lot less predictable. Each MWNT would have to be specifically calibrated for use as an amplitude modulated demodulator. Conversely, SWNTs have very uniform and predictable properties, meaning that their characteristics, such as current-voltage curves, can be precisely predicted by simple metrics such as radius and length. Further, only semiconducting SWNTs have been shown to possess the property of a nonlinear current-voltage curve. Effective demodulation relies on biasing the nanotube such that the operating point is centered on the maximum nonlinear portion. MWNTs (and metallic SWNTs) have more linear I-V curves, making them much less effective demodulators. Good question. While MWNTs are easier to make, their physical properties are a lot less predictable. Each MWNT would have to be specifically calibrated for use as an amplitude modulated demodulator. Conversely, SWNTs have very uniform and predictable properties, meaning that their characteristics, such as current-voltage curves, can be precisely predicted by simple metrics such as radius and length.

Further, only semiconducting SWNTs have been shown to possess the property of a nonlinear current-voltage curve. Effective demodulation relies on biasing the nanotube such that the operating point is centered on the maximum nonlinear portion. MWNTs (and metallic SWNTs) have more linear I-V curves, making them much less effective demodulators.

]]> By: Michael Arrington http://www.chronowake.net/2008/12/nanoscale-wireless-technology/comment-page-1/#comment-3 Michael Arrington Sun, 04 Jan 2009 04:10:14 +0000 http://www.chronowake.net/news/?p=13#comment-3 This is an extremely interesting report. I have a clarification question, though. Why do you cover only single-walled nanotubes and not multi-walled nanotubes? This is an extremely interesting report. I have a clarification question, though. Why do you cover only single-walled nanotubes and not multi-walled nanotubes?

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