红外与毫米波学报2020，Vol.39Issue(3)：284-289,6.DOI:10.11972/j.issn.1001-9014.2020.03.003
0.85THz可调谐式折叠波导再生反馈真空电子学振荡器的理论及实验研究
Theoretical and experimental study of a 0.85-THz tunable folded waveguide regenerative-feedback vacuum-electronics oscillator
李天一 1潘攀 1孟维思 1李栋 1蔡军 1邬显平 1冯进军 1闫铁昌1
作者信息
- 1. 北京真空电子技术研究所微波电真空器件国家级重点实验室,北京 100015
- 折叠
摘要
Abstract
A tunable feedback oscillator for 850 GHz terahertz wave imaging system is proposed. The use of a folded waveguide as the slow-wave structure permits the superior performance together with the capability of UVLIGA process. The comparison of dispersion character of FWG designed and optimized using eigenmode solver in CST Microwave Studio,respectively applied in regenerative feedback oscillator and traveling wave tube shows the key factor of tunable frequency centered at 850 GHz. Additionally,a feedback circuit including T-joint struc- ture with lossy metal is simulated and the design,including SWS and feedback circuit,is verified by 3-D particlein- cell simulations. On varying the beam voltage,the frequency-adjustable oscillation changes from a stale singlefrequency state at the beginning to multi-frequency spectra,demonstrating more than 200 mW output power.关键词
再生反馈振荡器/太赫兹/折叠波导/PIC模拟Key words
regenerative feedback oscillator/terahertz/folded waveguide/PIC solver分类
信息技术与安全科学引用本文复制引用
李天一,潘攀,孟维思,李栋,蔡军,邬显平,冯进军,闫铁昌..0.85THz可调谐式折叠波导再生反馈真空电子学振荡器的理论及实验研究[J].红外与毫米波学报,2020,39(3):284-289,6.
