一、引言近几年来,已从实验角度对正交场返波振荡管(通常称为M型返波管)和正交场放大管给予了充分注意。在致力于理解这些器件以及预示它们的工作特性方面pierce等人在小信号分析上做了许多工作。这些分析考虑了一束在平面型底极和高频结构之间的正交场中运动的布里渊电子注。但是没有一种分析考虑了实际布里渊流与理想布里渊流的差异,也未考虑即使线路是非重入情况下出现重入电子流的可能性。不过上述几种小信号分析确实考虑了交流空间电荷力对放大管增益以及对M型返 I. INTRODUCTION In recent years, sufficient attention has been paid to the orthogonal field-return oscillating tube (usually referred to as M-type return tube) and the orthogonal field-amplifying tube from an experimental point of view. Pierce et al. Have done a lot of work on small signal analysis in their efforts to understand these devices and to predict their operational characteristics. These analyzes consider a bundle of Brillouin electrons that move in the orthogonal field between the planar base and the high-frequency structure. However, none of the analyzes take into account the differences between the actual Brillouin flow and the ideal Brillouin flow and the possibility of reentrant electron flow even if the line is non-reentrant. However, several small signal analysis of the above does take into account the exchange of space charge on the amplifier gain and the M-type return