Study of a high power sine waveguide traveling wave tube amplifier centered at 8 GHz

被引：5

作者：

Hoff, Brad W. ^{[1
]}

Simon, David S. ^{[2
]}

French, David M. ^{[2
]}

Lau, Y. Y. ^{[3
]}

Wong, Patrick ^{[3
]}

机构：

[1] Air Force Res Lab, Albuquerque, NM 87117 USA

[2] Leidos, 2109 Airpark Rd SE, Albuquerque, NM 87106 USA

[3] Univ Michigan, Nucl Engn & Radiol Sci Dept, Ann Arbor, MI 48109 USA

来源：

PHYSICS OF PLASMAS | 2016年 / 23卷 / 10期

关键词：

ELECTRON-BEAM TRANSPORT; DIOCOTRON INSTABILITY;

D O I：

10.1063/1.4964141

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：

Performance of a 20-stage X-band sine waveguide amplifier, driven by a 40 A, 100 kV, cylindrical electron beam, is studied using numerical simulation and interpreted using Pierce's classical traveling wave tube theory. For an input signal power level of 1.8 kW, particle-in-cell simulations predict gain and bandwidth values exceeding 14 dB and 13%, respectively. For an input signal power level of 7.2 kW, particle-in-cell simulations predict gain and bandwidth values exceeding 12 dB and 15%, respectively, with output power levels exceeding 110kW at peak gain. Also given are: an assessment of the space charge factor (Pierce's QC parameter) for the complex circuit using simulation data, and an evaluation of the harmonic contents in the beam current.

引用

页数：6

共 20 条

[1]

Barker R.J., 2001, HighPower Microwave Sources and Technologies

[2] A PERFECTLY MATCHED LAYER FOR THE ABSORPTION OF ELECTROMAGNETIC-WAVES [J].