Modified magnetic field distribution in relativistic magnetron with diffraction output for compact operation

作者：Li, Wei^*; Liu, Yong-gui

来源：Physics of Plasmas, 2011, 18(2): 023103.

DOI：10.1063/1.3551759

A modified magnetic field distribution in relativistic magnetron with diffraction output (MDO) for compact operation is proposed in this paper. The principle of how the modified magnetic field confines electrons drifting out of the interaction space is analyzed. The results of the particle-in-cell (PIC) simulations of the MDO with the modified magnetic field distribution show that the output power of the MDO is improved, and the long cylindrical waveguide used for collecting the drifting electrons can be omitted. The latter measure allows the horn antenna of the MDO to produce more focused energy with better directivity in the far field than it does with the long cylindrical waveguide. The MDO with the modified magnetic field distribution promises to be the real most compact narrow band high power microwave source.

• 出版日期2011-2
• 单位中国人民解放军国防科学技术大学