We have investigated the electron beam transit-time effect in the π - mode standing wave electric field in the nonuniform two-cavity and three-cavity oscillator under the small signal condition . Mathematical expression of the beam-to-microwave power conversion efficiency has been obtained .

研究了小信号条件下，电子在非均匀两腔和非均匀三腔谐振腔π 模驻波场中的 渡 越 时间效应，得到了束波功率转换效率的函数表达式。