The equivalent circuits is synthesized for the case where the te10 mode is the only propagating waveguide mode , which based on basic waveguide - circuits equivalent circuits such as cross - coupled coaxial line rectangular waveguide junctions , rectangular waveguide transmission lines etc . then we make the computation program for the equivalent circuits to analyse and optimize the vco circuit , and get the each parameter ' s influences on vco output signal 本文從波導電路的等效電路出發(fā),綜合出3mmvco基波工作時只考慮te10模的等效電路,依據(jù)此編制程序完成了振蕩器電路的分析優(yōu)化,得出了電路中各個參數(shù)對振蕩器頻率溫度穩(wěn)定度性能的影響。