摘要
以折叠波导行波管作为大功率回旋行波管的前级激励信号源,利用电磁仿真软件HFSS和粒子模拟软件(CST粒子工作室),对0.14 THz微电真空折叠波导行波管慢波结构的色散特性、耦合阻抗进行计算分析,然后对折叠波导行波管束波互作用过程进行粒子模拟,最后通过粒子模拟得到该折叠波导行波管的增益、工作电压、电流等工作特性参数。在电压为13.9 kV、电流为16 mA,输入功率为5 mW的条件下,输出功率为5 W,线性增益为30 dB,带宽3.7 GHz,最大输出功率为6.2 W,该结果为0.14 THz大功率回旋行波管实现kW量级的功率输出提供功率足够的前级馈入信号奠定了基础。
The folded waveguide Traveling-Wave Tube（TWT） was served as pre-driving source of high-power gyrotron TWT in this paper.The dispersion curve of Slow Wave Structure（SWS） and coupling impedance were analyzed using EM simulation software HFSS and particle simulation software CST particle studio,and the beam-wave reaction process was simulated to obtain working parameters of gain,working voltage and current.Under the beam voltage of 13.9 kV,current of 16 mA and input power of 5 mW,the 0.14 THz wave was generated with linear gain of 30 dB,bandwidth of 3.7 GHz,maximum power of 6.2 W.The results will provide enough feeding signal power for 0.14 THz high-power gyrotron TWT to realize kW-level power.
出处
《信息与电子工程》
2011年第3期308-312,共5页
information and electronic engineering
基金
中国工程物理研究院909科技专项基金资助项目(2010-9090502B)
关键词
折叠波导
行波管
太赫兹
folded waveguide
Traveling-Wave Tube
terahertz
