4 . the " hot " dispersion equation of the coaxial ridge - disk - loaded cylindrical waveguide twt with an annular electron beam can be firstly obtained according to self - consistent field theory 四、引入薄环形电子注,首次建立了脊加载同轴膜片圆波导的注波互作用线性理论,得到小信号条件下的色散方程。
The linear theory of the coaxial disk - loaded cylindrical waveguide twt is built and the dispersion equation with an annular electron beam of this twt is obtained according to self - consistent field theory and the field matching method . the computation results of the hot dispersion equation indicate the relations between the electron beam parameters and the small signal gain 利用自洽场理论以及场的匹配方法,推导出此结构在小信号条件下的热色散方程,讨论了电子注参量和慢波系统几何参量与小信号增益和色散的关系。