Design of 0.365-THz Backward Wave Oscillator using Staggered Double Grating SWS and Sheet Beam

被引：0
|
作者：
Zhang, Jin [1 ]
Yin, Huabi [2 ]
Zhang, Tianzhong [1 ]
Alfadhl, Yasir [1 ]
Chen, Xiaodong [1 ]
Cross, Adrian [2 ]
He, Wenlong [3 ]
Xie, Jie [2 ]
机构：
[1] Queen Mary Univ London, Sch Elect Engn & Comp Sci, London E1 4NS, England
[2] Univ Strathclyde, Dept Phys, Glasgow G1 1XQ, Lanark, Scotland
[3] Shenzhen Univ, Coll Elect Sci & Technol, Shenzhen 518061, Peoples R China
来源：
2019 12TH UK-EUROPE-CHINA WORKSHOP ON MILLIMETER WAVES AND TERAHERTZ TECHNOLOGIES (UCMMT) | 2019年
基金：
英国工程与自然科学研究理事会;
关键词：
THz source; backward wave oscillator (BWO); staggered double grating (SDG);
D O I：
10.1109/ucmmt47867.2019.9008255
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We have designed a backward wave oscillator (BWO) using a staggered double grating (SDG) slow-wave structure (SWS) and a sheet beam generated by a pseudo-spark cathode. The CST simulation results for the high-frequency characteristics of the SWS are analyzed, and the operating oscillation frequency point is found to be 365.13 GHz at 35000 V. The BWO model is created and the power performance is obtained with particle-in-cell (PIC) simulation. The frequency is 365.93 GHz at 35000 V, which is 0.16% higher than the predicted one by the Brillouin diagram. In the voltage range from 33500 V to 37000 V, a bandwidth of 2.38 GHz with power of over 200 W is achieved. The power could be over 1000 W from 365.5 GHz to 365.5 GHz, showing that significant output power is obtained.
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页数：3
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