L波段10MW同轴腔多注速调管双端口输出系统的研究  

Study on the Two-port Output System for an L-band 10MW Coaxial Cavity Multi-beam Klystron

作　　者：张瑞[1,2] 王勇[1] 

机构地区：[1]中国科学院电子学研究所中国科学院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：《电子与信息学报》2012年第9期2282-2286,共5页Journal of Electronics & Information Technology

摘　　要：该文对L波段10 MW多注速调管输出系统开展了模拟和实验研究。计算分析了新型双端口6注同轴输出腔谐振频率、品质因数、特性阻抗等高频参数;设计了扁波导耦合输出窗,在波导内设置金属杆以调节阻抗匹配,使输出窗在工作频点1.3 GHz的驻波比计算值小于1.01,驻波比1.2以下带宽为100 MHz;加工了输出系统实物,开展了冷测实验,实验值与设计值吻合良好;利用PIC软件对输出系统注-波互作用特性进行了计算,获得了大于10 MW的输出功率,计算注-波转换效率大于65%。Simulation and experiments of the output system for an L-band 10 MW multi-beam klystron are carried out. Parameters of the two-port six-beam coaxial output cavity, such as frequency, quality factor and character impedance, are calculated and analyzed. A output window with a nonstandard fiat waveguide is designed, in which two metallic poles are adopted to match the impedance. The VSWR of the window is lower than 1.01 at 1.3 GHz, and the bandwidth is greater than 100 MHz with the （Voltage Standing Wave Ratio） VSWR lower than 1.2. A testing model is manufactured and measured. The experimental results agree well with the design. The beam-wave interaction characteristics of the output cavity are simulated by a 3-D PIC software, and the output radio frequency power is greater than 10 MW with efficiency of more than 65%.

关 键 词：多注速调管 同轴谐振腔 输出窗 注-波互作用 

分 类 号：TN122[电子电信—物理电子学]