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Nanotube radio compared to tube

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Forum » Valves / tubes - Semiconductors » Other valves/tubes » Nanotube radio compared to tube
           
Joe Sousa
Joe Sousa
Editor
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27.Mar.09 02:01

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The following two links describe a radio with the 4 functions Antenna, tuning, amplification detection, all implemented with a single carbon NanoTube.

http://www.physics.berkeley.edu/research/zettl/projects/nanoradio/radio.html

http://www.physics.berkeley.edu/research/zettl/projects/nanoradio/2007_Nanoletters_Nanotube_radio.pdf

The nanotube is a field emitting cathode, and is energized with 200VDC at the Anode, which is 1u away.

The negative charge at the tip of the nanotube cathode makes it very sensitive tha RF electric fields.

The tube flexes and resonates at the incomming RF frequency. The emission current is non-linear and detects the RF into audio.

This is trully a vacuum tube of a different sort. Vacuum is <10^-7Torr.

Regards,

-Joe

Martin Renz
Martin Renz
Officer
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27.Mar.09 06:55

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If the question status is set mistakenly, an additional post (like this) is needed to conclude the topic. Possibly we can make it editable sometimes in the future.


best regards

Martin

  
rmXorg