US Patent 7932792 - CNT RF filter

http://www.freepatentsonline.com/7932792.html

This patent is from Nokia and teaches how carbon nanotube resonators can enable nanoscale RF filters for software-defined and cognitive radio. Claim 1 reads:

1. A device comprising a nanotube configured as a resonator, a source electrode, a gate electrode, and a drain electrode, wherein a first end portion of the nanotube is fixed to the source electrode via an interposed layer of solid insulating material.