Secondly , we present the set of nonlinear partial differential equations that describes the wave - particle interaction , by analyzing the output power spectrum , the limit cycle and chaotic oscillation of the radiation field in the traveling wave tube ( twt ) amplifier and the magnetically insulated transmission line oscillator ( milo ) are studied numerically , respectively 接著,在論文的第三章和第四章我們從導(dǎo)出了一組用于描述場和電子相互作用的非線性偏微分耦合方程組開始,利用頻譜分析法,以行波管( twt )放大器和磁絕緣傳輸線振蕩器( milo )為例,數(shù)值研究了o型器件和m型器件中場的極限環(huán)振蕩和混沌行為。