| 高效率曲折槽波导毫米波行波管设计、制造和冷测 |
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| 引用本文： | 田艳艳,王禾欣,石先宝,李新义,宫玉彬,何文龙.高效率曲折槽波导毫米波行波管设计、制造和冷测[J].红外与毫米波学报,2022,41(1):311-316. |
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| 作者姓名： | 田艳艳 王禾欣 石先宝 李新义 宫玉彬 何文龙 |
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| 作者单位： | 电子与信息工程学院,深圳大学,广东深圳518000,电子科学与工程学院,电子科技大学,四川成都610054,中国电科思仪科技股份有限公司,山东青岛266400,南京三乐电子信息产业集团有限公司,江苏南京210008 |
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| 基金项目： | Supported by the National Natural Science Foundation of China （62001297， 61921002 and 61988102） and Shenzhen Science and technology （JCYJ 2020019105415835 and KQTD 20200820113046084） |
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| 摘 要： | 本文提出一种适用于工作在毫米波段(85～110 GHz)的带状注高效率曲折槽波导毫米波行波管,并进行了参数优化设计、加工制造和冷测实验研究.曲折槽波导首次采用一次改变周期相速跳变技术提高带状注毫米波行波管电子互作用效率.文中加工制造了三种不同周期个数(包含相速跳变和均匀相速两种类型)的曲折槽波导,并进行了S参数测试,其...
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| 关 键 词： | 曲折槽波导 一次相速跳变 毫米波行波管 强电子效率 高功率源 |
| 收稿时间： | 2021/7/9 0:00:00 |
| 修稿时间： | 2022/1/18 0:00:00 |
Design, fabrication and cold test of a high efficiency folded groove waveguide for w-band sheet beam TWT |
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| TIAN Yan-Yan,WANG He-Xin,SHI Xian-Bao,LI Xin-Yi,GONG Yu-Bin and HE Wen-Long.Design, fabrication and cold test of a high efficiency folded groove waveguide for w-band sheet beam TWT[J].Journal of Infrared and Millimeter Waves,2022,41(1):311-316. |
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| Authors: | TIAN Yan-Yan WANG He-Xin SHI Xian-Bao LI Xin-Yi GONG Yu-Bin and HE Wen-Long |
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| Affiliation: | (Free Electron Terahertz and Nanobeam Laboratory Shenzhen University,Shenzhen 518000,China;School of Electronic Science and Engineering,University of Electronic Science and Technology of China,Chengdu 610054,China;Ceyear Technologies Co.,Ltd,Qingdao 266400,China;Nanjing Sanle Electronic Group Co.,Ltd,Nanjing 210008,China) |
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| Abstract: | In this paper,a design,fabrication and cold test of a high efficiency folded groove waveguide(FGW)for w-band(85~110GHz)sheet beam traveling wave tube(TWT)is proposed.One stage phase velocity taper(OSPVT)was used in the FGW to enhance the electronic efficiency of a millimeter-wave sheet beam TWT.The OSPVT was realized via a change of the period of the FGW.Three FGWs with and without OSPVT were fabricat?ed and their measured s-parameters demonstrate good transmission characteristics and wide bandwidth.More?over,wave dispersions and phase velocities of the unchanged and OSPVT FGWs were obtained from measured transmission phases.3-D particle-in-cell simulations of beam-wave interaction predicted that the proposed TWT with an OSPVT of twenty half periods could output a saturated power of 240 W at 95 GHz,which is about 70 W higher than the case of without OSPVT.Meanwhile,the application of the OSPVT improves the electronic effi?ciency in the whole operating frequency range of 85~110 GHz,with a maximum efficiency enhancement of about 47%in the vicinity of 95 GHz. |
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| Keywords: | folded groove waveguide once stage phase velocity taper millimeter-wave traveling wave tube electronic efficiency enhancement high-power source |
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