Impact of FBG array embedded on/in helix support rods on TWT performance

In order to obtain the temperature distribution along inner helix of working TWTs, fiber Bragg grating array (FBGA) can be considered to be used in testing the temperature. Two testing methods based on FBGA embedded on/in support rod helix structure are proposed. The influence of the FBGA on beam-wa...

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Bibliographic Details
Published in2015 IEEE International Vacuum Electronics Conference (IVEC) pp. 1 - 2
Main Authors Jin Zhang, Feng Wang, Huiyu Yuan, Pu Wei, Xiaohan Sun, Yanmei Wang, Bo Chen, Jinjun Feng, Tiechang Yan
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.04.2015
Subjects
Arrays
fiber Bragg grating array (FBGA)
Fiber gratings
helix TWT
Power amplifiers
Power generation
Simulation
Temperature distribution
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Summary:In order to obtain the temperature distribution along inner helix of working TWTs, fiber Bragg grating array (FBGA) can be considered to be used in testing the temperature. Two testing methods based on FBGA embedded on/in support rod helix structure are proposed. The influence of the FBGA on beam-wave interaction is analyzed through CST. The results show that the structure with FBGA embedded in support rods doesn't significantly reduce the saturated output power and can suppress the backward wave oscillation (BWO) power hole.
ISBN:9781479971091
147997109X
DOI:10.1109/IVEC.2015.7224047