Title :
RF modulation of a 3 mA beam current from a carbon nanotube cathode
Author :
Hudanski, L. ; Minoux, E. ; Schnell, J.-P. ; Vincent, Pierre ; Legagneux, Pierre ; Peauger, F. ; Dieumegard, D. ; David, Jean-Francois ; Teo, K.B.K. ; Gangloff, L. ; Lacerda, R. ; Chhowalla, M. ; Hasko, D.G. ; Ahmed, Hameeza ; Amaratunga, G.A.J. ; Milne,
Author_Institution :
Thales Res. & Technol., France
Abstract :
A micro-triode operating at 30 GHz is currently under development. This triode is composed of two 30 GHz re-entrant resonant cavities (input and output, respectively cathode-grid space and anode-grid space) separated by a grounded thin metallic grid. A dc bias between cathode-grid and anode-grid provides a continuous electron beam. The superposition of a 30 GHz electric field created in the input cavity, leads to increase the average grid current, which is indicative of the electron beam modulation.
Keywords :
anodes; cathodes; cavity resonators; electron beams; triodes; 30 GHz; RF modulation; anode-grid space; average grid current; beam current; carbon nanotube cathode; cathode-grid space; dc bias; electric field superposition; electron beam modulation; grounded thin metallic grid; microtriode; re-entrant resonant cavities; Carbon nanotubes; Cathodes; EMP radiation effects; Electron beams; Electron devices; Electron tubes; Optical modulation; Radio frequency; Resonance; Space vector pulse width modulation;
Conference_Titel :
Vacuum Nanoelectronics Conference, 2005. IVNC 2005. Technical Digest of the 18th International
Print_ISBN :
0-7803-8397-4
DOI :
10.1109/IVNC.2005.1619467
