Open AccessStudy on phase velocity tapered microstrip angular log‐periodic meander line travelling wave tube
Author(s) -
Li Xinyi,
Xu Youkun,
Wang Shaomeng,
Wang Zhanliang,
Shi Xianbao,
Duan Zhaoyun,
Wei Yanyu,
Feng Jinjun,
Gong Yubin
Publication year - 2016
Publication title -
iet microwaves, antennas and propagation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.555
H-Index - 69
eISSN - 1751-8733
pISSN - 1751-8725
DOI - 10.1049/iet-map.2015.0520
Subject(s) - traveling wave tube , chamfer (geometry) , microstrip , optics , physics , phase velocity , cathode ray , transmission line , beam (structure) , phase (matter) , line (geometry) , meander (mathematics) , tube (container) , acoustics , computational physics , materials science , electron , electrical engineering , engineering , amplifier , geometry , mathematics , optoelectronics , cmos , quantum mechanics , composite material
To improve the efficiency of beam‐wave interaction and the gain of the microstrip angular log‐periodic meander‐line (MALPML) travelling wave tube (TWT), a modified phase velocity tapered MALPML (PVT‐MALPML) with 45° chamfer is proposed in this study. Compared with MALPML slow wave structure (SWS), the PVT‐MALPML SWS has better transmission characteristics. Meanwhile, the beam‐wave interaction simulation results show that a higher gain and electron efficiency can be produced by the PVT‐MALPML TWT. By using the novel PVT‐MALPML SWS, the properties of the radial TWT is further improved to meet the requirements of electronic system to TWTs.