Title :
Design of a wideband high-power W-band serpentine TWT
Author :
Nguyen, Khanh ; Ludeking, Lars ; Cook, Alan ; Cooke, Simon ; Joye, Colin ; Calame, Jeffrey ; Burke, Annette ; Wright, Edward ; Pershing, Dean ; Pasour, John ; Petillo, John ; Vlasov, A. ; Chernin, D. ; Abe, David K. ; Levush, Baruch
Author_Institution :
Beam-Wave Res., Inc., Bethesda, MD, USA
Abstract :
The design of a W-band serpentine TWT with >200 W of power over a 4 GHz bandwidth (>100 W over 7 GHz) is presented. The amplifier is driven by a 122mA, 20 kV electron beam generated by a slightly modified version of the demonstrated 670 GHz beamstick at a reduced magnetic field. The design was performed by both the established MAGIC-3D and the recently validated NRL code Neptune, with good agreement between the two codes. Predicted RF peak power is 245 W, corresponding to 10% electronic efficiency.
Keywords :
electron beams; travelling wave tubes; MAGIC-3D; NRL code Neptune; beamstick; current 122 mA; electron beam; electronic efficiency; frequency 4 GHz; frequency 670 GHz; voltage 20 kV; wideband high-power w-band serpentine TWT; Electron beams; Optical waveguides; Optics; Performance evaluation; Radio frequency; Wideband; G-band; TWT; W-band; amplifier; folded waveguide; serpentine; vacuum electronics;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2013 IEEE 14th International
Conference_Location :
Paris
Print_ISBN :
978-1-4673-5976-4
DOI :
10.1109/IVEC.2013.6571116
