CAJ | 학술논문

该文介绍了一种超宽带双信道速调管输出回路的设计思路和实现过程。以Ansoft HFSS软件为设计平台，在S波段设计出一个带宽超过550 MHz的超宽带双信道双间隙耦合腔输出回路。设计了信道转换机构，并分别确定了两个信道的谐振腔参数。得出了不改变两个谐振腔参数，只需调节耦合槽的尺寸就能够实现信道转换的结论。通过对 HFSS 软件建立的模型进行计算，得到了双间隙耦合腔输出回路中各模式的频率，与冷测结果基本一致。利用集中元件等效电路法计算了双间隙耦合腔输出回路的间隙阻抗，计算结果与冷测结果基本一致。
해문개소료일충초관대쌍신도속조관수출회로적설계사로화실현과정。이Ansoft HFSS연건위설계평태，재S파단설계출일개대관초과550 MHz적초관대쌍신도쌍간극우합강수출회로。설계료신도전환궤구，병분별학정료량개신도적해진강삼수。득출료불개변량개해진강삼수，지수조절우합조적척촌취능구실현신도전환적결론。통과대 HFSS 연건건립적모형진행계산，득도료쌍간극우합강수출회로중각모식적빈솔，여랭측결과기본일치。이용집중원건등효전로법계산료쌍간극우합강수출회로적간극조항，계산결과여랭측결과기본일치。
The design ideas and performance process of a super-wide band and two channels output circuit on a klystron are presented. A super-wide band two-channel double-gap coupled-cavity output circuit, whose bandwidth is over 550 MHz, is designed at S band by Ansoft HFSS. A channel switch structure is designed, and the resonance parameters of the two channels are determined. Then, a conclusion is made that channels can be switched easily through tuning the coupled-slot without changing the parameters of the two cavities. The frequencies of each mode in the double-gap coupled-cavity output circuit are simulated through calculating the model by Ansoft HFSS. The frequencies of each mode accord with the “cold test” mainly. The gap impedance of double-gap coupled-cavity, which is simulated by analysis of equivalent lumped element circuit, also accords with the“cold test”very well.