太赫兹科学与电子信息学报Issue(1)：13-18,6.DOI:10.11805/TKYDA201501.0013
双注THz折叠波导行波管的设计与传输特性实验
Design and transmission test of two-beam Terahertz Folded Waveguide Traveling Wave Tubes
颜胜美 1苏伟 2王亚军 1徐翱 1陈樟 2向伟 1金大志2
作者信息
- 1. 中国工程物理研究院 电子工程研究所，四川 绵阳 621999
- 2. 中国工程物理研究院微系统与太赫兹研究中心，四川 绵阳 621999
- 折叠
摘要
Abstract
Traveling Wave Tube(TWT) bears high gain, wide bandwidth and large output power. However, the output power will decline significantly when the operation frequency rises to Terahertz range. In order to increase the output power of THz TWT by parallel multi-beam and power combination method, theoretical analysis and numerical simulation of parallel multi-beam D band Folded Waveguide-TWT(FW-TWT) are performed. The simulation results demonstrate that the method can achieve the power combining output of multi-amplified signals. According to the simulation, single-beam mode behaves flat dispersion characteristics between 0.135 THz and 0.157 THz; the 3 dB gain band is 13 GHz(0.135 THz-0.147 THz) and the largest gain is 20.88 dB at 0.14 THz; multi-beam mode gets 20.8 dB combining gain at 0.14 GHz and the combining efficiency is not below 92% in 3 dB gain frequency range. The structure is fabricated by micro milling with a dimension error below the designed values. The transmission characteristics of D band Two Beams Folded Waveguide Structure(TBFWS) are simulated and tested. The study shows important meaning for achieving high power THz radiation based on nowadays heat cathode level.关键词
两注/折叠波导行波管/太赫兹/3 dB带宽/合成效率Key words
two-beam/Folded Waveguide-Traveling Wave Tube/Terahertz/3 dB band/combining efficiency分类
信息技术与安全科学引用本文复制引用
颜胜美,苏伟,王亚军,徐翱,陈樟,向伟,金大志..双注THz折叠波导行波管的设计与传输特性实验[J].太赫兹科学与电子信息学报,2015,(1):13-18,6.
