三间隙耦合腔输出回路的等效电路  

Equivalent circuit of three-gap coupled cavity type output section

作　　者：马菁[1,2] 王勇[1] 王树忠[1] 

机构地区：[1]中国科学院电子学研究所高功率微波源与技术重点实验室,北京100190 [2]中国科学院研究生院,北京100049

出　　处：《强激光与粒子束》2009年第9期1375-1379,共5页High Power Laser and Particle Beams

基　　金：国家自然科学基金项目(60701011)

摘　　要：给出了三间隙耦合腔输出回路的等效电路,利用等效电路确定了谐振频率及间隙阻抗矩阵。从间隙阻抗出发,结合双间隙耦合腔输出回路探讨了模式重叠的机制,并将其应用于Ka波段的三间隙耦合腔输出回路。基于能量守恒的观点得到了三间隙耦合腔输出回路的互作用阻抗频率特性,从而调整电路参数,使所研究电路的3 dB带宽达到了4.48%。The equivalent circuit of the three-gap coupled cavity type output section is given, with which resonant frequency of resonant modes and gap impedance matrix are calculated. Based on gap impedance, mode-overlapping theory of double-gap coupled cavity is discussed, and is used to expand the bandwidth of a Ka-band three-gap coupled cavity type output section. Resonator interaction impedance of three-gap coupled cavity is obtained from energy conservation law. The circuit＇ s 3 dB-bandwith has reached 4. 48% by adjusting circuit parameters.

关 键 词：三间隙耦合腔 输出回路 间隙阻抗矩阵 互作用阻抗 模式重叠 带宽 

分 类 号：TN122[电子电信—物理电子学]