负载对磁控管振荡频率及输出功率的影响  

Effects of Loads on Oscillating Frequency and Output Power of Magnetrons

作　　者：张兆镗[1] ZHANG Zhao-tang(University of Electronic Science and Technology of China,Chengdu 610054,China)

机构地区：[1]电子科技大学,四川成都610054

出　　处：《真空电子技术》2018年第3期42-45,66,共5页Vacuum Electronics

摘　　要：本文从闭合传输线法及等效网络法分别对多腔磁控管的负载对其振荡频率及输出功率的影响进行了分析,两者得出的结论是一致的,即π模是非简并模,因此只要管子起振,负载即能得到输出功率,其振荡频率则受负载导纳中电纳的性质决定,容性电纳使振荡频率降低,而感性电纳将使振荡频率提高,频率的改变量取决于电纳绝对值的大小。Effects of loads on oscillating frequency and output power of multi cavity magnetrons are analyzed through the closed transmission line method and the equivalent network method.The conclusion drawn from the two methods is consistent,that is,theπmode is a non-degenerate mode.So as long as the tube is excited,output power can be obtained from the load.The nature of the susceptance in load admittance determines the oscillating frequency：the capacitive susceptance decreases the oscillating frequency,the inductive susceptance increases the oscillating frequency,and the frequency change depend on the absolute value of the susceptance.

关 键 词：磁控管 振荡频率 输出功率 负载 闭合传输线法 等效网络法 容性电纳 感性电纳 

分 类 号：TN123[电子电信—物理电子学]