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

Journal Article · Tue Feb 15 00:00:00 EST 2011 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.3551759· OSTI ID:21535181

Wei, Li; Yonggui, Liu ^[1]

---

1. College of Opto-Electric Science and Engineering, National University of Defense Technology, Changsha, Hunan 410073 (China)

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.

• OSTI ID: 21535181
• Journal Information: Physics of Plasmas, Vol. 18, Issue 2; Other Information: DOI: 10.1063/1.3551759; (c) 2011 American Institute of Physics; ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
DIFFRACTION
DISTRIBUTION
MAGNETIC FIELDS
MAGNETRONS
MICROWAVE RADIATION
PLASMA SIMULATION
WAVEGUIDES
COHERENT SCATTERING
ELECTROMAGNETIC RADIATION
ELECTRON TUBES
ELECTRONIC EQUIPMENT
EQUIPMENT
MICROWAVE EQUIPMENT
MICROWAVE TUBES
RADIATIONS
SCATTERING
SIMULATION