Title :
Design Methodology and Experimental Verification of Serpentine/Folded-Waveguide TWTs
Author :
Nguyen, Khanh T. ; Vlasov, Alexander N. ; Ludeking, Lars ; Joye, Colin D. ; Cook, Alan M. ; Calame, Jeffrey P. ; Pasour, John A. ; Pershing, Dean E. ; Wright, Edward L. ; Cooke, Simon J. ; Levush, Baruch ; Abe, David K. ; Chernin, D.P. ; Chernyavskiy, Igo
Author_Institution :
Beam Wave Res. Inc., Bethesda, MD, USA
Abstract :
The general electromagnetic properties and design methodology for serpentine/folded-waveguide (FW) amplifiers are presented. In addition, hybrid-waveguide circuit topologies, which permit greater design flexibility than the basic serpentine/FW topologies, are also introduced, and their dispersion characteristics are discussed. Experimental validation of design methodology and tools is provided via test results of the recently demonstrated wideband 220-GHz serpentine amplifier, which embodies the design methodology described herein. Particular attention will be paid to the comparison between code prediction and experimental data, which are in excellent agreement.
Keywords :
electromagnetic waves; hybrid integrated circuits; millimetre wave amplifiers; network topology; travelling wave tubes; dispersion characteristics; electromagnetic properties; frequency 220 GHz; hybrid-waveguide circuit topology; serpentine-folded-waveguide TWT; serpentine/folded-waveguide amplifiers; Design methodology; Dispersion; Electron beams; Fabrication; Passband; Radio frequency; Topology; Amplifier; backward-wave oscillation (BWO); dispersion; folded waveguide (FW); oscillation; serpentine; stopband; traveling-wave tube (TWT); vacuum electronics; vacuum electronics.;
Journal_Title :
Electron Devices, IEEE Transactions on
DOI :
10.1109/TED.2014.2303711
