What could be the advantage of using carbon nano-tubes for the design of small radiators and receptors. Can this be used with very high frequencies? How much bandwidth can they support at the moment of any?
Here is, quite old actually, paper on functional nanotube radio. Hope you find some answers there http://www.physics.berkeley.edu/research/zettl/projects/nanoradio/2007_Nanoletters_Nanotube_radio.pdf