220 Ghz Dual Beam Photonic Crystal Folded Waveguide Twt

Ningjie Shi,Duo Xu,Hexin Wang,Zhanliang Wang,Huarong Gong,Zhaoyun Duan,Zhigang Lu,Yanyu Wei,Yubin Gong,Jinjun Feng

2018 43RD INTERNATIONAL CONFERENCE ON INFRARED, MILLIMETER, AND TERAHERTZ WAVES (IRMMW-THZ)（2018）

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摘要

The paper puts forward a novel dual beam folded waveguide (FW) slow wave structure (SWS), which is loaded by photonic crystals. In this novel structure, the two electron beams pass through the small gaps between the photonic crystal structures and the folded waveguide. According to Particle-in-cell simulations by the CST Particle Studio, the designed traveling wave tube (TWT) can generate a peak power of 210W at 220GHz, corresponding to the maximum gain and efficiency of 16.3dB and 5%, respectively.

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关键词

electron beams,photonic crystal structures,traveling wave tube,dual beam photonic crystal folded waveguide,slow wave structure,dual beam folded waveguide,particle-in-cell simulations,CST Particle Studio,frequency 220.0 GHz,gain 16.3 dB,efficiency 5 percent,power 210 W

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