电子科技大学学报2022，Vol.51Issue(5)：702-708,7.DOI:10.12178/1001-0548.2022014
基于光子晶体慢波结构的太赫兹返波管研究
Research on Terahertz Backward-Wave Oscillator Based on Photonic Column Array Slow-Wave Structure
摘要
Abstract
This article explores a photonic column array slow-wave structure (SWS). A 0.28-THz sheet beam backward-wave oscillator (BWO) was designed and simulated by calculating the dispersion, field distribution and particle simulation. When the cathode current density is only 10 A/cm2 (the minimum is less than 6 A/cm2), the voltage is 12.5 kV and the magnetic field is 0.5 T, the structure interacts with the sheet beam by immersion and the output power is 435 mW. On the basis of previous work, the SWS was fabricated using Lithography-Galvanoformung-Abformung (LIGA) fabrication technology. The results show that the column array structure can effectively improve the interaction efficiency and reduce the starting current density; and effectively improve the lifespan of terahertz (THz) vacuum electron device (VED) cathodes, which is a viable means of increasing the performance of THz vacuum radiation sources.关键词
光子晶体慢波结构/太赫兹返波管/起振电流/真空电子器件Key words
column array slow-wave structure/THz BWO/starting current/vacuum electron device分类
信息技术与安全科学引用本文复制引用
肖川红,吴振华,李杰龙,史宗君,钟任斌,刘頔威,赵陶,胡旻,刘盛纲..基于光子晶体慢波结构的太赫兹返波管研究[J].电子科技大学学报,2022,51(5):702-708,7.基金项目
Supported by National Natural Science Foundation of China (61701084, 61505022) （61701084, 61505022）
National Key Research and Development Program of China (2018YFF01013001, 2017YFA0701000)国家自然科学基金(61701084, 61505022) （2018YFF01013001, 2017YFA0701000）
国家重点基础研究专项(2018YFF01013001, 2017YFA0701000) （2018YFF01013001, 2017YFA0701000）
