| 双注THz折叠波导行波管的设计与传输特性实验 |
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| 引用本文： | 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,2015,13(1):13-18. |
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| 作者姓名： | 颜胜美 苏 伟 王亚军 徐 翱 陈 樟 向 伟 金大志 |
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| 作者单位： | a.Institute of Electronic Engineering；b.Microsystems and Terahertz Research Center，China Academy of Engineering Physics，Mianyang Sichuan 621999，China;Institute of Electronic Engineering，China Academy of Engineering Physics，Mianyang Sichuan 621999，China;a.Institute of Electronic Engineering；b.Microsystems and Terahertz Research Center，China Academy of Engineering Physics，Mianyang Sichuan 621999，China;a.Institute of Electronic Engineering；b.Microsystems and Terahertz Research Center，China Academy of Engineering Physics，Mianyang Sichuan 621999，China;a.Institute of Electronic Engineering；b.Microsystems and Terahertz Research Center，China Academy of Engineering Physics，Mianyang Sichuan 621999，China;a.Institute of Electronic Engineering；b.Microsystems and Terahertz Research Center，China Academy of Engineering Physics，Mianyang Sichuan 621999，China;Institute of Electronic Engineering，China Academy of Engineering Physics，Mianyang Sichuan 621999，China |
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| 摘 要： | 行波管具有高增益、宽带宽、高输出功率等优点,但频率提升到THz后,输出功率急剧降低,为此采用多注与功率合成的方式提高输出功率。对D波段折叠波导行波管进行的理论与数值分析表明:单束的3 d B带宽为13 GHz(0.134 THz~0.147 THz),0.14 THz处最大增益为20.88 d B;多束合成增益为20.6 d B,3 d B带宽内合成效率不低于92%。通过微铣削的办法加工完成了2路折叠波导,并对其传输特性进行测量,对比分析了测试与设计结果。并行多注行波管能够以单束小电流、低聚焦磁场方式工作,可有效提高THz行波管的输出功率。
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| 关 键 词： | 两注 折叠波导行波管 太赫兹 3 dB带宽 合成效率 |
| 收稿时间： | 2014/9/16 0:00:00 |
| 修稿时间： | 2014/12/1 0:00:00 |
Design and transmission test of two-beam Terahertz Folded Waveguide Traveling Wave Tubes |
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| AN Shengmei,SU Wei,WANG Yajun,XU Ao,CHEN Zhang,XIANG Wei and JIN Dazhi.Design and transmission test of two-beam Terahertz Folded Waveguide Traveling Wave Tubes[J].Journal of Terahertz Science and Electronic Information Technology,2015,13(1):13-18. |
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| Authors: | AN Shengmei SU Wei WANG Yajun XU Ao CHEN Zhang XIANG Wei and JIN Dazhi |
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| Institution: | YAN Shengmei;SU Wei;WANG Yajun;XU Aoa;CHEN Zhang;XIANG Wei;JIN Dazhi;Institute of Electronic Engineering,China Academy of Engineering Physics;Microsystems and Terahertz Research Center,China Academy of Engineering Physics; |
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| 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. |
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