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Influence of Diamond on Heat Dissipation Capability of The Helix Slow-Wave Structures

MetadataDetails
Publication Date2019-04-01
AuthorsYanwen Liu, Hong Tian, Yuxin Lu, Wen-Qi Shi
InstitutionsInstitute of Electronics, Chinese Academy of Sciences

Heat dissipation capability of helical slow-wave structure is an important factor that affects output power, operating stability and reliability of travelling-wave tube (TWT). As diamond material has superbly high thermal conductivity, use of it in fabricating helical slow-wave structure is able to improve heat dissipation capability of the component to some extent. By means of theoretical calculation, simulation & emulation and laboratory test, this paper studies influences of diamond-film-deposited support rod, diamond-film-deposited helix and diamond support rod on heat dissipation capability of slow-wave structure. With a contrast study of experiment and simulation data, the computer simulation is closely correlated to experimental test, which improves the accuracy of computer simulation research and offers important references for application of diamond material in slow-wave structure.