Experimental Study of High-Power Gyrotron Traveling-Wave Tube With Periodic Lossy Material Loading

被引：32

作者：

Wang, Efeng ^{[1
]}

Zeng, Xu ^{[1
]}

Liu, Bentian ^{[1
]}

Qian, Lijun ^{[1
]}

Li, Zhiliang ^{[1
]}

Feng, Jinjun ^{[1
]}

Zhu, Shiqiu ^{[2
]}

机构：

[1] Beijing Vacuum Elect Res Inst, Vacuum Elect Natl Lab, Beijing 100015, Peoples R China

[2] China Agr Univ, Coll Sci, Beijing 100083, Peoples R China

来源：

IEEE TRANSACTIONS ON PLASMA SCIENCE | 2012年 / 40卷 / 07期

关键词：

Broad band; gyrotrons; high-power microwave amplifiers; periodic lossy material loading; AMPLIFIER; GAIN; DESIGN;

D O I：

10.1109/TPS.2012.2196289

中图分类号：

O35 [流体力学]; O53 [等离子体物理学];

学科分类号：

070204 ; 080103 ; 080704 ;

摘要：

The distributed wall loss is a good approach for the suppression of spurious oscillations in gyrotron traveling-wave tube (gyro-TWT). The periodic lossy dielectric loading in the interaction region of gyro-TWT can effectively suppress the spurious oscillations. We designed and employed a periodic lossy-material-loaded circuit in our experimental study of TE01 Ka-band gyro-TWT. The output characteristics were greatly improved. A peak output power of 290 kW was measured with 56-dB maximum gain, 34.2% efficiency, and 2.1-GHz 3-dB bandwidth when the accelerating voltage was 66 kV and beam current was 13 A.

引用

页码：1846 / 1853

页数：8

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