Design of Dual-Band High-Power Backward Wave Oscillator using Double Staggered Grating and Pseudospark-Sourced Sheet Beam

被引：22
|
作者：
Zhang, Jin [1 ]
Alfadhl, Yasir [1 ]
Chen, Xiaodong [1 ]
Zhang, Liang [2 ]
Cross, Adrian W. [2 ]
机构：
[1] Queen Marry Univ London, Sch Elect Engn & Comp Sci, London, England
[2] Univ Strathclyde, Dept Phys, Glasgow, Lanark, Scotland
来源：
2021 14TH UK-EUROPE-CHINA WORKSHOP ON MILLIMETRE-WAVES AND TERAHERTZ TECHNOLOGIES (UCMMT 2021) | 2021年
基金：
英国工程与自然科学研究理事会;
关键词：
millimetre(mm)-wave; backward wave oscillator (BWO); slow-wave structure (SWS); double staggered grating (DSG); pseudospark;
D O I：
10.1109/UCMMT53364.2021.9569914
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 dual-band backward wave oscillator (BWO) using a double staggered grating (DSG) slow-wave structure (SWS) and a pseudospark-sourced sheet electron beam. In the simulation of the high-frequency characteristics, the DSG SWS has been shown a wide operating band of 72-125 GHz and a high coupling impedance. The complete structure of the BWO consists of 10 DSG SWS units, together with a wideband output structure. In the cold-test simulation of the DSG BWO, the transmission is greater than -7 dB in the band 74-100 GHz, and 109-125 GHz. The hot-test performance of the DSG BWO is analysed by particle-in-cell (PIC) simulation, showing dual-band operation in 75-100 GHz (25-GHz bandwidth) and 108-115 GHz (7-GHz bandwidth), with high output power (max. 162 kW).
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页数：3
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