Research of sine waveguide slow-wave structure for a 220-GHz backward wave oscillator  

作　　者：许雄 魏彦玉 沈飞 黄民智 唐涛 段兆云 宫玉彬 

机构地区：[1]National Key Laboratory of Science and Technology on Vacuum Electronics,University of Electronic Science and Technology of China

出　　处：《Chinese Physics B》2012年第6期543-547,共5页中国物理B（英文版）

基　　金：Project supported by the National Natural Science Foundation for Distinguished Young Scholars of China (Grant No. 61125103);the National Natural Science Foundation of China (Grant Nos. 60971038 and 60971031);the Fundamental Research Funds for the Central Universities,China (Grant No. ZYGX2009Z003)

摘　　要：A watt-class backward wave oscillator is proposed, using the concise sine waveguide slow-wave structure combined with a pencil electron beam to operate at 220 GHz. Firstly, the dispersion curve of the sine waveguide is calculated, then, the oscillation frequency and operating voltage of the device are predicted and the circuit transmission loss is calculated. Finally, the particle-in-cell simulation method is used to forecast its radiation performance. The results show that this novel backward wave oscillator can produce over 1-W continuous wave power output in a frequency range from 210 GHz to 230 GHz. Therefore, it will be considered as a very promising high-power millimeter-wave to terahertz-wave radiation source.A watt-class backward wave oscillator is proposed, using the concise sine waveguide slow-wave structure combined with a pencil electron beam to operate at 220 GHz. Firstly, the dispersion curve of the sine waveguide is calculated, then, the oscillation frequency and operating voltage of the device are predicted and the circuit transmission loss is calculated. Finally, the particle-in-cell simulation method is used to forecast its radiation performance. The results show that this novel backward wave oscillator can produce over 1-W continuous wave power output in a frequency range from 210 GHz to 230 GHz. Therefore, it will be considered as a very promising high-power millimeter-wave to terahertz-wave radiation source.

关 键 词：backward wave oscillator sine waveguide slow-wave structure TERAHERTZ 

分 类 号：TN752[电子电信—电路与系统] TN814.7