红外与毫米波学报2017，Vol.36Issue(6)：655-659,5.DOI:10.11972/j.issn.1001-9014.2017.06.004
矩形波导加载光栅结构的太赫兹振荡器
Grating rectangular waveguide for THz backward wave oscillator
摘要
Abstract
A slow-wave structure (SWS) composed of a grating inside a rectangular waveguide is adopted as the circuit of the backward wave oscillator (BWO) in terahertz regime in this paper.Its dispersion curves and interaction impedance are presented by an analytical method and three-dimensional (3-D) electromagnetic software.The results by analysis and simulation agree well.By optimization,a BWO with the SWS at a central frequency 340 GHz is fully verified by 3-D particle-in-cell (PIC) code.The BWO is demonstrated with more than 100 mW output power at very low current density and 30 GHz tuning bandwidth.关键词
返波管/矩形波导光栅/慢波结构/太赫兹Key words
backward wave oscillator (BWO)/rectangular waveguide grating/slow-wave structure (SWS)/terahertz分类
数理科学引用本文复制引用
张开春,陈科,王奇,盛昌建,袁学松..矩形波导加载光栅结构的太赫兹振荡器[J].红外与毫米波学报,2017,36(6):655-659,5.基金项目
Supported by the National Key Basic Research Program of China (2013CB933603),and China Scholarship Council （2013CB933603）
