Studies on a third-harmonic large-orbit gyro-traveling-wave-tube amplifier

被引：1
|
作者：
Yang, WY [1 ]
Ding, W [1 ]
机构：
[1] Inst Appl Phys & Computat Math, Beijing 100088, Peoples R China
来源：
PHYSICS OF PLASMAS | 2004年 / 11卷 / 04期
关键词：
D O I：
10.1063/1.1669394
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：
A third-harmonic gyro-traveling-wave-tube amplifier with a smooth cylindrical waveguide using an axis-encircling electron beam is studied. By the use of a novel way of magnetic field tapering, the output efficiency increases from 25% to 39% and the bandwidth increases from 3% to 7.5% compared with the use of a constant magnetic field. Numerical calculations also find that the electron beam reaches a strong bunching state two times before saturation of the radiation field due to the magnetic field tapering. (C) 2004 American Institute of Physics.
引用
收藏
页码：1685 / 1688
页数：4
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