Design and cold-test of sheet beam coupled cavity slow wave structure for W-Band TWT
投稿时间:2019-08-03  修订日期:2020-02-20  download
摘要点击次数: 118
全文下载次数: 2
路志刚 电子科技大学 电子科学与工程学院 大功率微波电真空器件技术国防科技重点实验室 
葛卫华 电子科技大学 电子科学与工程学院 大功率微波电真空器件技术国防科技重点实验室 
温瑞东 电子科技大学 电子科学与工程学院 大功率微波电真空器件技术国防科技重点实验室 
苏志成 电子科技大学 电子科学与工程学院 大功率微波电真空器件技术国防科技重点实验室 
朱美玲 电子科技大学 电子科学与工程学院 大功率微波电真空器件技术国防科技重点实验室 
丁科森 电子科技大学 电子科学与工程学院 大功率微波电真空器件技术国防科技重点实验室 
王战亮 电子科技大学 电子科学与工程学院 大功率微波电真空器件技术国防科技重点实验室 
唐涛 电子科技大学 电子科学与工程学院 大功率微波电真空器件技术国防科技重点实验室 
Abstract:This paper presents the fabrication and cold-test of a three-slot-staggered-ladder coupled cavity slow wave structure (CC-SWS) along with high power input-output couplers and RF windows in W-band. The SWS is fed by a rectangular waveguide coupler which is made up of a three-order step-transform rectangular waveguide placed on the short edge of the input cavity. Firstly, the dispersion, interaction impedance, transmission property and beam-wave interaction are studied using the simulation method. It is shown that the traveling wave tube (TWT) with a three-slot-staggered-ladder CC-SWS is able to provide a sat-uration output power of more than 1000 W in the frequency range of 91-96GHz, and the maximum saturated output power can reach 1125W at 94 GHz. Secondly, the CC-SWS is fabricated by the high-precision CNC milling and fixed in a nonmagnetic stainless steel housing. Test results of the fab-ricated CC-SWS with couplers and RF-windows are presented, showing the S11 < -10 dB in the frequency range of 90GHz to 100GHz. Therefore, the three-slot-staggered-ladder CC-SWS is a promising slow wave circuit of high power W-band TWT.
keywords:traveling wave tube, W-band, three-slot-staggered-ladder, coupled cavity slow wave structure (CC-SWS), cold test
  HTML  查看/发表评论  下载PDF阅读器

Copyright:《Journal of Infrared And Millimeter Waves》