Title :
20.2: Testing of the omniguide traveling-wave tube
Author :
Shchegolkov, Dmitry Yu ; Earley, Lawrence M. ; Haynes, W. Brian ; Renneke, Richard M. ; Smirnova, Evgenya I. ; Yampolsky, Nikolai A.
Author_Institution :
Los Alamos Nat. Lab., Los Alamos, NM, USA
Abstract :
We have designed, fabricated and tested with low power a novel W-band TWT based on a slow-wave cylindrically-symmetric PBG dielectric structure, or an “omniguide”. PBG TWT structures have great potential for very large bandwidth and linear dispersion. A gain experiment is under way at Los Alamos with the structure being driven by a 2 A, 110 kV electron beam. In this presentation we will report the design of the omniguide TWT structure, theoretical computations of the gain and the results of S-parameters measurements. We will also describe the electron beam test stand setup and report first results from the gain measurement experiment.
Keywords :
S-parameters; dielectric materials; electron beams; millimetre wave tubes; photonic band gap; travelling wave tubes; S-parameters measurements; W-band TWT; current 2 A; electron beam; gain measurement; linear dispersion; omniguide traveling-wave tube testing; slow-wave cylindrically-symmetric PBG dielectric structure; voltage 110 kV; Bandwidth; Broadband amplifiers; Dielectrics; Electron beams; Frequency; Gain measurement; Laboratories; Photonic band gap; Remote monitoring; Testing; W-band; dielectric traveling-wave tube; photonic band gap structure;
Conference_Titel :
Vacuum Electronics Conference (IVEC), 2010 IEEE International
Conference_Location :
Monterey, CA
Print_ISBN :
978-1-4244-7098-3
DOI :
10.1109/IVELEC.2010.5503475
