【摘要】 文章利用耦合模理论，在考虑多模共存且相互耦合的情况下，对渐变结构复合腔进行了冷腔分析，计算了H₅1-H₅2模式对下，各个模式的耦合及场幅值分布情况，分析了多模耦合对渐变复合腔的Q值及场幅值分布的影响．结果表明，电波模式E₅1对该复合腔的特性有很大的影响．更多还原

【Abstract】 Starting from general transmission line equation, an analysis on cold complex cavity gyrotron with gradual transition is presented, in which the multiple modes coupling are taken into account. The influences of multiple modes coupling on the axial field amplitude profile, the operating frequency and the Q value of this complex cavity are analyzed in detail. Results show that there are serious influence of E51 mode on the character of the complex cavity.更多还原