空间行波管慢波结构及注波互作用模拟设计  

Design and Simulation of Slow-Wave Structure and Beam-Wave Interaction for Space TWT

作　　者：刘毅[1,2] 阮久福[1,3] 杨军[1,3] 邓光晟[1,3] 吕国强[1,3] 张文丙[4] 

机构地区：[1]合肥工业大学特种显示技术教育部重点实验室,安徽合肥230009 [2]合肥工业大学仪器科学与光电工程学院,安徽合肥230009 [3]合肥工业大学光电技术研究院,安徽合肥230009 [4]安徽华东光电技术研究所第5研究室,安徽芜湖241002

出　　处：《电子科技》2012年第3期72-74,共3页Electronic Science and Technology

摘　　要：设计了Ka波段螺旋线行波管的慢波结构,分析其色散特性曲线和耦合阻抗,对高频系统进行了优化;利用PIC粒子模拟得到在工作频带内饱和输出功率>73.5 W,增益畸变<2%,并对试制样管进行了试验,测得在工作频带内输出功率>45 W,电子效率>12.5%,采用4级降压收集极后总效率大于40%,最后对模拟结果和实测结果的差异原因进行了简单分析。The slow-wave structure of the Ka band helix-TWT is designed.Its color scattering characteristic curve and coupling impedance are analyzed.The high-frequency system is optimized.The results of Interaction from PIC simulation show that the output power is more than 73.5 W and distortion of gain is less than 2% at the working frequency.The test results show that this device has the output power of more than 45 W,the electronic efficiency of more than 12.5%,and the overall efficiency of more than 40% at the working frequency.The difference between the simulation result and test result is analyzed.

关 键 词：空间行波管 冷测特性 注波互作用 电子效率 

分 类 号：TN124[电子电信—物理电子学]