A novel slotted helix slow-wave structure for high power Ka-band traveling-wave tubes

被引：1

作者：

刘鲁伟 ^{[1
]}

魏彦玉 ^{[1
]}

王少萌 ^{[1
]}

侯艳 ^{[1
]}

殷海荣 ^{[1
]}

赵国庆 ^{[1
]}

段兆云 ^{[1
]}

徐进 ^{[1
]}

宫玉彬 ^{[1
]}

王文祥 ^{[1
]}

杨明华 ^{[2
]}

机构：

[1] National Key Laboratory of Science and Technology on Vacuum Electronics,University of Electronic Science and Technology of China

[2] Beijing Vacuum Electronics Research Institute (BVERI)

来源：

Chinese Physics B | 2013年 / 22卷 / 10期

基金：

中国国家自然科学基金;

关键词：

slotted helix; slow-wave structure; millimeter-wave; traveling-wave tube; beam-wave interaction;

D O I：

暂无

中图分类号：

TN124 [行波管];

学科分类号：

080901 ;

摘要：

A novel slotted helix slow-wave structure(SWS) is proposed to develop a high power,wide-bandwidth,and high reliability millimeter-wave traveling-wave tube(TWT).This novel structure,which has higher heat capacity than a conventional helix SWS,evolves from conventional helix SWS with three parallel rows of rectangular slots made in the outside of the helix tape.In this paper,the electromagnetic characteristics and the beam-wave interaction of this novel structure operating in the Ka-band are investigated.From our calculations,when the designed beam voltage and beam current are set to be 18.45 kV and 0.2 A,respectively,this novel circuit can produce over 700-W average output power in a frequency range from 27.5 GHz to 32.5 GHz,and the corresponding conversion efficiency values vary from 19% to 21.3%,and the maximum output power is 787 W at 30 GHz.

引用

页码：597 / 601

页数：5

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