Backward-Wave Oscillation Suppression in Helix Traveling-Wave Tubes by Magnetic Field Tapering

被引：0
|
作者：
Haegermann, Moritz [1 ]
Birtel, Philip [2 ]
Meyne, Sascha [1 ]
Safi, Djamschid [1 ]
Jacob, Arne F. [1 ]
机构：
[1] Hamburg Univ Technol, Inst High Frequency Technol, Hamburg, Germany
[2] Thales Elect Syst GmbH, Ulm, Germany
来源：
2017 EIGHTEENTH INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC) | 2017年
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中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Two techniques for suppressing backward-wave oscillations in homogeneous helix sections of traveling-wave tubes are presented. For this purpose, the focusing magnetic field is modified. The first technique aims at compressing the electron beam in order to reduce beam-wave coupling. The second one changes the beam rotation to affect the backward-wave interaction. Both techniques increase the margin against backward-wave oscillations significantly. Theory and simulation results are presented and compared.
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页数：2
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