摘要
在未考虑电子注速度零散、引导中心零散以及波导壁损耗的情况下，采用四阶龙格库塔法，对均匀截面开槽高次回旋行波放大管注波互作用进行了数值计算，得出一些重要的互作用规律。电子注绕轴作大回旋运动。在π模式、四次谐波、３５．０５ＧＨｚ、５８ｋＶ、８Ａ、ｖ⊥／ｖ∥＝１．５的情况下，饱和效率达到２４．４％，增益为３４ｄＢ，峰值功率为１１３．２ｋＷ，饱和带宽为４％。
The behavior of the slotted gyrotron travelling wave amplifier(gyro TWT) with a uniform section is simulated by a Runge Kutta algorithm code under the condition neglecting the velocity spread and guiding center spread of the electron beam and the loss of the wave guide. Some important interaction laws are abtained. The electron beam encircles the axis of the waveguide. For an ideal 58kV、8A beam with v ⊥/v ∥ =1.5, the saturated efficiency of a fourth harmonic gyro TWT, working at 35 05 GHz, reachs 24.4%, the peak output power reachs 113.2kW, the saturated gain is 34dB. 3dB saturated bandwidth is 4%.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
1998年第2期273-278,共6页
High Power Laser and Particle Beams
基金
国家863激光技术资助
电子部预研项目
关键词
回旋行波管
开槽波导
高次谐波
自洽
非线性
gyro TWT, slotted waveguide, constant driving bandwidth, saturated bandwidth, high harmonic
