Open AccessInvestigation on the power combination of the relativistic magnetrons with axial extraction
Author(s) -
Li Wei,
Yonggui Liu,
Jing Yang
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.038401
Subject(s) - directivity , optics , horn antenna , microwave , french horn , antenna (radio) , physics , miniaturization , reflection coefficient , power (physics) , radiation , diffraction , cavity magnetron , effective radiated power , radiation pattern , materials science , acoustics , electrical engineering , slot antenna , engineering , quantum mechanics , thin film , sputtering
The relativistic magnetron with axial extraction, also known as magnetron with diffraction output (MDO), is an important device for the miniaturization and compaetification of magnetron. It is also promising to be one of the most compact narrow band high power microwave sources. Based on the manners and traits of the MDO directly radiating the quasi-TE11 mode in axial direction, the investigation of the power combination of double MDOs with a horn antenna is carried out. After discussing the combination ways and results, a modified configuration is proposed for improving the radiation directivity. Finally, the results show that when the adjacent double MDOs have an open angle of 7 and the common horn antenna has the parameters of h = 600 mm and r = 340 mm, the mode reflection coefficient of the power combination system is 0.31, the maximum gain is 21.5 dB, the radiation mode is TE11.